Eurocode Alu Kreuz Drivetrain Stabilizer on C7 RS7 | Review

[S5_newbie]

So finally we had a few days of dry weather up here in British Columbia Canada. Gave the RS7 a good rip on both tight corners, straights and high speed corners with the new upgrades.

- Michelin Pilot Super Sports 295/25/21 All Around
- Eurocode Alu Kreuz Drivetrain Stabilizer
- 0.5" F 0.75" R additional drop from H&R ETS settings with lowering linkages

Cornering, definitely feel a big diff - less roll and a lot more stable exiting corners too. Understeer has decreased but not to the point I can point the nose in at ease. It'll never be like my R8 V10 with the JRZ suspension but for a car like the RS7 that is meant for cruising, I'm already very very happy. Will definitely look into the 034 rear sway bar next to further enhance cornering capabilities.

The michelin tires are night and day compared to the OEM Continental 5P tires. Oh my, just have to say its endless grip and confidence with these tires.

Want to thank my good friends at Performance One in Richmond BC for the install | http://www.performanceone.ca/

If any of you guys are in the lower mainland area, these guys are the bomb in terms of performance tuning for any make / model.

[Gonzoe11]

Glad you're liking your build. 034 rear sway FTW!


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[gta7]

I have AK and 034 rear sways and end links. It's a nice setup!

[parkstr8]

I was thinking of getting the ECS Adjustable rear sways and the end links...for a total of $596. Do you think I need the AK? I live in Dallas now so it is very, very flat. If I were still in Los Angeles the AK would be a must.

[Gonzoe11]

I was thinking of getting the ECS Adjustable rear sways and the end links...for a total of $596. Do you think I need the AK? I live in Dallas now so it is very, very flat. If I were still in Los Angeles the AK would be a must.

I think the 034 setup is cheaper and as good or better (nothing to back that up though). Really keeps the rear planted.


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[Barritia]

I think the 034 setup is cheaper and as good or better (nothing to back that up though). Really keeps the rear planted.


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What makes you think that a single rear is better than a tuned pair front and rear.

[Barritia]

I was thinking of getting the ECS Adjustable rear sways and the end links...for a total of $596. Do you think I need the AK? I live in Dallas now so it is very, very flat. If I were still in Los Angeles the AK would be a must.

I have not installed my AK yet but the sways and endlinks alone have made a massive difference with the car. I'm sure there's gonna be a tiny improvement with the AK but I will put money on it that it's no where near how the car feels after sways and endlinks.

[Ze_Nardo6]

What makes you think that a single rear is better than a tuned pair front and rear.

I'm glad someone said something.

I don't have experience with either setup on these cars but have upgraded sways on every car I've ever owned. Can't fathom how a single rear bar could be more effective than a front/rear combo that were engineered to work in tandem.

I'm sure those that have the 034 rear are happy with the performance, but to say it's as good or better seems like a stretch. Until someone has tried both and can provide feedback, I'm going to stick with my assumption that a pair will work better than just a rear upgrade (yes that is an assumption).

[Barritia]

I'm glad someone said something.

I don't have experience with either setup on these cars but have upgraded sways on every car I've ever owned. Can't fathom how a single rear bar could be more effective than a front/rear combo that were engineered to work in tandem.

I'm sure those that have the 034 rear are happy with the performance, but to say it's as good or better seems like a stretch. Until someone has tried both and can provide feedback, I'm going to stick with my assumption that a pair will work better than just a rear upgrade (yes that is an assumption).

I would compare it to having stock tires then putting PSS in the rear and saying it's better which it would be but putting PSS in the front will improve the performance even more. But to say just rears are better than front and rears is just taking a wild guess. It does seem that every single set of sways I have seen for most cars have front and rears and not just rears. I would be curious if 034 rear only was more a cost decision than a performance decision or if a rear only really does work better even though it's cheaper.

[Ze_Nardo6]

Just know that we spent two years developing our sway bar kit that is balanced for the C7. We turned faster laps at the GP in a C7 S6 than a C63, E92 supercharge M3 and were only two tenths of a second behind the 650WHP 034 TTRS that was 800lbs lighter. The old school Audi mindset that this car only needs a rear sway bar, is exactly that. This car needs a balanced bar set and we spent a long time realizing this, because as we are old school Audi and were once just as naïve. However unlike 034, we actually owned a C7 car for over two years, and that certainly helps us develop a real product not just pic a bigger bar and release. Making a bar is easy, making the best bar is not, and please understand that the diameter of the bar is not what dictates how stiff the bar is. The real science is the wall thickness and not all bars of the same diameter have the same wall thickness. Hope this helps. :)

I'll leave this here.

[Gonzoe11]

What makes you think that a single rear is better than a tuned pair front and rear.

I have not installed my AK yet but the sways and endlinks alone have made a massive difference with the car. I'm sure there's gonna be a tiny improvement with the AK but I will put money on it that it's no where near how the car feels after sways and endlinks.

I'm glad someone said something.

I don't have experience with either setup on these cars but have upgraded sways on every car I've ever owned. Can't fathom how a single rear bar could be more effective than a front/rear combo that were engineered to work in tandem.

I'm sure those that have the 034 rear are happy with the performance, but to say it's as good or better seems like a stretch. Until someone has tried both and can provide feedback, I'm going to stick with my assumption that a pair will work better than just a rear upgrade (yes that is an assumption).

I don't think I said a single rear is better than a tuned pair front and rear. I said the 034 is as good or better (nothing to back that up).<=

I have run both setups before but not on this platform so I have no evidence to support either way. On the RS5, difference was not significant especially with lowering springs.

[Gonzoe11]

I run the Eurocode F+R setup on the Q5 and also ran the same on the S5. After trying both the EC and 034 setups on the RS I decided to try the 034 rear again on the S7. I have no loyalty to either company. They both make quality products to improve our platforms using a different formula.

@parkstr8 said he lives in Dallas and it's dam flat. Unless he plans to track his S6, it won't matter much.

Btw @Barritia. You will love the AK and it will be a tiny improvement but it has nothing to do with body roll. AK and Sways are mutually exclusive.

[lapsandwich]

So finally we had a few days of dry weather up here in British Columbia Canada. Gave the RS7 a good rip on both tight corners, straights and high speed corners with the new upgrades.

- Michelin Pilot Super Sports 295/25/21 All Around
- Eurocode Alu Kreuz Drivetrain Stabilizer
- 0.5" F 0.75" R additional drop from H&R ETS settings with lowering linkages

Cornering, definitely feel a big diff - less roll and a lot more stable exiting corners too. Understeer has decreased but not to the point I can point the nose in at ease. It'll never be like my R8 V10 with the JRZ suspension but for a car like the RS7 that is meant for cruising, I'm already very very happy. Will definitely look into the 034 rear sway bar next to further enhance cornering capabilities.

The michelin tires are night and day compared to the OEM Continental 5P tires. Oh my, just have to say its endless grip and confidence with these tires.

Want to thank my good friends at Performance One in Richmond BC for the install | http://www.performanceone.ca/

If any of you guys are in the lower mainland area, these guys are the bomb in terms of performance tuning for any make / model.

Brooo, where did you find dry roads? This has been the worst march ever in Vancouver haha. Did you order everything through them, or just have them install everything ?

[S5_newbie]

Brooo, where did you find dry roads? This has been the worst march ever in Vancouver haha. Did you order everything through them, or just have them install everything ?

Ordered everything myself and had them install everything.


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[Logtec]

I'm glad someone said something.

I don't have experience with either setup on these cars but have upgraded sways on every car I've ever owned. Can't fathom how a single rear bar could be more effective than a front/rear combo that were engineered to work in tandem.

I'm sure those that have the 034 rear are happy with the performance, but to say it's as good or better seems like a stretch. Until someone has tried both and can provide feedback, I'm going to stick with my assumption that a pair will work better than just a rear upgrade (yes that is an assumption).

I have the 034 rear, Eurocode front and rear are still in toll. After a week I can give you information which platform is better. But at the moment with 034 only I feel the front end is way too loose and unstable for my taste.

[Logtec]

I don't think I said a single rear is better than a tuned pair front and rear. I said the 034 is as good or better (nothing to back that up).<=

I have run both setups before but not on this platform so I have no evidence to support either way. On the RS5, difference was not significant especially with lowering springs.

With KW coils you probably won't need the sway bars anyway. I had S5 with KW V2, it handled like dream, 0 body roll. But with c7 air suspension I think the eurocode setup is a must be.

[Gonzoe11]

With KW coils you probably won't need the sway bars anyway. I had S5 with KW V2, it handled like dream, 0 body roll. But with c7 air suspension I think the eurocode setup is a must be.

I ran the KW HAS on the RS5 and agree perfect mate for that platform. On the S5 I ran the PSS10 but the bigger challenge was dialing out the shimmy from the convertible platform. PSS10 + EC sways and links + AK + stage 2 tune = 1 bad ass convertible.


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[Logtec]

Only question I have, maybe I will but Eurocode sway in the front and let the 034 stay in the rear? Is 034 rear stiffer than eurocode rear bar or not?

[P_G]

Wasn't someone going to change from their 034 set up to the Eurocode F+R sways to end this debate once and for all?

For me it is all subjective, what roads you are driving on, what car you have, what most of your driving is etc. etc. On some RS's a rear only is needed because the front is already stiff enough and you don't want to compromise the limited pliability of the front, some RS's have enough front compliance that front and rears are a benefit. Whether one is 'better' or not is down to the individual because we all have differing needs. Having DRC on my car and only ever for normal / fast road driving, 034 due to its availability in the UK was enough to alleviate what understeer I had.

- - - Updated - - -

BTW S5newbie, what wheels are your running to have 295/25/21's on them?

[Ze_Nardo6]

Only question I have, maybe I will but Eurocode sway in the front and let the 034 stay in the rear? Is 034 rear stiffer than eurocode rear bar or not?

Eurocode advised against this, obviously. Stating their front/rear combo were engineered to work together.

[parkstr8]

I ended up just ordering the Eurocode set with the end link sets. Best to just do front and rear at same time and be done with it. Then if I want the Alu Kreuz later...that is a simple lift it and bolt it on.

[Logtec]

Wasn't someone going to change from their 034 set up to the Eurocode F+R sways to end this debate once and for all?

For me it is all subjective, what roads you are driving on, what car you have, what most of your driving is etc. etc. On some RS's a rear only is needed because the front is already stiff enough and you don't want to compromise the limited pliability of the front, some RS's have enough front compliance that front and reads are a benefit. Whether one is 'better' or not is down to the individual because we all have differing needs. Having DRC on my car and only ever for normal / fats road driving, 034 due to its availability in the UK was enough to alleviate what understeer I had.

- - - Updated - - -

BTW S5newbie, what wheels are your running to have 295/25/21's on them?

With DRC you won't get the same benefits out of bigger sways as the ones with air suspension do. Drc is much stiffer than air. With air the front end is terrible. It floats, rolls and is very unstable, even dangerous on high speeds.

[S5_newbie]

Wasn't someone going to change from their 034 set up to the Eurocode F+R sways to end this debate once and for all?

For me it is all subjective, what roads you are driving on, what car you have, what most of your driving is etc. etc. On some RS's a rear only is needed because the front is already stiff enough and you don't want to compromise the limited pliability of the front, some RS's have enough front compliance that front and reads are a benefit. Whether one is 'better' or not is down to the individual because we all have differing needs. Having DRC on my car and only ever for normal / fats road driving, 034 due to its availability in the UK was enough to alleviate what understeer I had.

- - - Updated - - -

BTW S5newbie, what wheels are your running to have 295/25/21's on them?

I'm running a 21x10.5 all around which allows me to run these 295s. Anything slimmer than that and the tires will have a stretch look and IMO doesn't look all that good.

I'm very very happy with how it's stanced right now. Slammed but not tucked, flushed to the fenders.


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[tenspeed]

Only question I have, maybe I will but Eurocode sway in the front and let the 034 stay in the rear? Is 034 rear stiffer than eurocode rear bar or not?

Let me start out with a "I don't know which bar is stiffer".

034's rear bar is engineered to work with the stock front bar.
Eurocode's front and rear bars are engineered to work together.
Audi's have a lot of weight forward of the front axle and tend to plow. A larger rear bar will reduce plowing and reduce body roll.

So lets assume both the 034 and EuroCode's rear bar is heavier than stock.

EuroCode pairs their rear bar to their front bar. If the EuroCode front bar was lighter than stock, it would also reduce plowing but allow more body roll. It would make sense to assume that both of the EuroCode bars are heavier than stock.

Using those assumptions, if you had a EuroCode front bar and a 034 rear bar, the car would have less body body roll and it would plow more then if you had the stock front sway bar.

As I said, I don't know which bar is stiffer. What I think may not be correct but that's what I came up with.

[wwhan]

The Eurocode F/R sway bars with end links feels pretty good accelerating out of a corner, with the Sport differential, in sport mode.

[VVG]

So is there any real advantage to full front/rear sway bar upgrade over just the rear? I have the Stasis rear sway bar from a few years back along with an H&R module lowered about 15mm all around. Handling is decent for a big car, but I would still prefer the whole car to feel a little tighter. I still notice a bit too much roll on faster tighter turns, and there is still a little too much overall flex to the whole chassis.

Can this be fixed or should I just plan on getting an RS5?

[jrsAudiA6]

So is there any real advantage to full front/rear sway bar upgrade over just the rear? I have the Stasis rear sway bar from a few years back along with an H&R module lowered about 15mm all around. Handling is decent for a big car, but I would still prefer the whole car to feel a little tighter. I still notice a bit too much roll on faster tighter turns, and there is still a little to much overall flex to the whole chassis.

Can this be fixed or should I just plan on getting an RS5?

I can tell you from my own experience that when I updated from the Stasis rear ARB to the EC front and rear ARB the car was much closer to neutral handling. My track times improved significantly.

[Logtec]

I can tell you from my own experience that when I updated from the Stasis rear ARB to the EC front and rear ARB the car was much closer to neutral handling. My track times improved significantly.

Do you feel the Eurocode rear is stiffer than stasis rear? Was stasis from steel or hollow?

[jrsAudiA6]

Do you feel the Eurocode rear is stiffer than stasis rear? Probably, but since I replaced both the front and rear, difficult to tell.
Was stasis from steel or hollow? I have know idea.

[tenspeed]

So is there any real advantage to full front/rear sway bar upgrade over just the rear?

The advantage is that a manufacturer of both bars is not limited to designing something that works with the OEM front bar. They can make both bars heavier to reduce body roll and adjust the torsions between the two to improve handling. EuroCode takes it a step further and provides a means to fine tune their bars.

Can this be fixed or should I just plan on getting an RS5?

I guess that depends on your definition of "fixed". The RS5 is one fine looking automobile.
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Here's a handling chart

[rnp614]

Can anyone comment on the end links and the impact on ride quality on city streets with the Eurocode sways? I just did a track day in my S6 and am thinking about doing the AK + Eurocode sways +/- end links. Want less body roll as I found that really difficult to cope with and made s curves feel dicier than they needed to but dont want a jittery ride on road...not worth that sacrifice considering I may only do 2-3 HPDE in a year.

Thoughts from the hive mind? Would really appreciate it!

[OlyS6]

The Eurocode sway bars and endlinks (both front and back) make an immediate HUGE improvement in handling the car on turns. Adding the AK on top of those is negligible, at least in my experience (I added the AK about a month after the sway bars and end-links since the AK was on back order). If I had it to do over again, I would just do the sway bars and end-links. You'll be happy you did. Drives like a much smaller car now. I drive in downtown Seattle on a fairly regular basis, and no difficulty with the ride, especially placing the suspension in comfort while everything else is in dynamic. I typically drive with everything in dynamic all the time without issue.

[elptxjc]

I'd like to also have some clarification what Eurocode sways (both) alone change the S6 from stock (in dynamic), then how much adding 'end links' add to that, and finally, furtner how much adding AK (which I still don't know what the heck that is or where it goes) adds to the other 2. In other words, would like to compare which of the above 3 options gives the best bang for the buck to minimize body roll and improve handling in dynamic, but not not affect ride too much in comfort. That for an S6 that will never see the track; just spirited cornering in mountain roads every once in a while. Want the best of both worlds, since you just can't have everything in a single car. Gave up a fully optioned Cayman GTS with sport suspension; handled awesome, but rode like crap, was noisy as hell, and not that comfortable. The only other thing I'll do is lower the car as much as VCDS allows me (17mm max, but probably 15), once a dealer reflashes my car from my botched attempt to lower it. Depending on that cost is the budget I'll have for the suspension, hence asking for 'best bang for the buck'. If I had unlimited funds, I'd obviously do everything. He he. Thanks in advance for the lecture in suspension changes for the S6 folks.

[Barritia]

I have lowering links, adjustable control arms, AK, front and rear sways, end links, diff insert and trans insert. But in order of that I would buy again would be close to what I already did.

1.Front and rear sways
2. End links
3. Lowering links
4. Adjustable control arms
5. Trans and diff inserts
6. AK

[brad65ford]

With DRC you won't get the same benefits out of bigger sways as the ones with air suspension do. Drc is much stiffer than air. With air the front end is terrible. It floats, rolls and is very unstable, even dangerous on high speeds.

I so feel this even with lowering links. When I'm in the throttle forget it this bitch wants to wonder all over the place. Would these sway bars help?

[rnp614]

I'd like to also have some clarification what Eurocode sways (both) alone change the S6 from stock (in dynamic), then how much adding 'end links' add to that, and finally, furtner how much adding AK (which I still don't know what the heck that is or where it goes) adds to the other 2. In other words, would like to compare which of the above 3 options gives the best bang for the buck to minimize body roll and improve handling in dynamic, but not not affect ride too much in comfort. That for an S6 that will never see the track; just spirited cornering in mountain roads every once in a while. Want the best of both worlds, since you just can't have everything in a single car. Gave up a fully optioned Cayman GTS with sport suspension; handled awesome, but rode like crap, was noisy as hell, and not that comfortable. The only other thing I'll do is lower the car as much as VCDS allows me (17mm max, but probably 15), once a dealer reflashes my car from my botched attempt to lower it. Depending on that cost is the budget I'll have for the suspension, hence asking for 'best bang for the buck'. If I had unlimited funds, I'd obviously do everything. He he. Thanks in advance for the lecture in suspension changes for the S6 folks.

Basically I’m wondering the above but I AM planning on taking it to the track...did one HPDE last weekend, was a blast.