485 Designs Ti exhaust

[DrMerl]

On order, build in (holiday and weather) process.
https://485-designs.myshopify.com/co...trs-8s-exhaust


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[mtwallace85]

Congrats! Can’t wait to see your impressions of it. I’ve been wanting to order this but I’m prioritizing some other things first. Hopefully by the summer I’ll get this.

[mtwallace85]

[rnlabas]

Looks beautiful, but man the price seems to have jumped up quite a bit from the early quotes - whassup with that ??

[8STTRS]

I've spoken with Nick a few times. I might still get his setup but, not in titanium however, I also don't want that split at all.

[DrMerl]

I've spoken with Nick a few times. I might still get his setup but, not in titanium however, I also don't want that split at all.

You thinking turbulence at the collector or goofy BP pulse?

[8STTRS]

You thinking turbulence at the collector or goofy BP pulse?

I think the split is completely unnecessary in general. I can see it for stock clearances and ensuring nothing gets remotely close to touching but, in the aftermarket, if you're going for a full turbo-back, it should just be one pipe. Right now with my IE downpipe, it splits for like 12" after the downpipe then goes back to a single pipe for the remainder of the exhaust. It just looks terribly silly. I'd rather it be a 3.5" from the turbo back or ideally, 4" from the turbo back for higher powered setups. Now, of course you can split it after the differential for utilizing both exhaust tips but, I'm just saying that the split in the middle of the exhaust just doesn't add up to me in a full turbo-back setup.

[mercer]

Looks beautiful, but man the price seems to have jumped up quite a bit from the early quotes - whassup with that ??

All our products are handmade here in USA. Titanium is expensive, labor is expensive. Price reflects both.

[mercer]

I think the split is completely unnecessary in general. I can see it for stock clearances and ensuring nothing gets remotely close to touching but, in the aftermarket, if you're going for a full turbo-back, it should just be one pipe. Right now with my IE downpipe, it splits for like 12" after the downpipe then goes back to a single pipe for the remainder of the exhaust. It just looks terribly silly. I'd rather it be a 3.5" from the turbo back or ideally, 4" from the turbo back for higher powered setups. Now, of course you can split it after the differential for utilizing both exhaust tips but, I'm just saying that the split in the middle of the exhaust just doesn't add up to me in a full turbo-back setup.

The split allows the product to be universal for other downpipes out there, stock, iroz, etc. If we were to just throw the product out there with no split, it would require custom adaptation in every instance to make the product usable. Apart from that, inquiries who may be interested in full turbo back, I can indeed eliminate the useless split.

[mercer]

Pics of actual product to this post below. We've made a few changes, added a turn table for our welding, etc. Top notch product! Enjoy.

[DrMerl]

Woot! That's my exhaust for test fitment, should be here this week. Welds are nutty nice!

[8STTRS]

The split allows the product to be universal for other downpipes out there, stock, iroz, etc. If we were to just throw the product out there with no split, it would require custom adaptation in every instance to make the product usable. Apart from that, inquiries who may be interested in full turbo back, I can indeed eliminate the useless split.

Yeah. We've spoken via email before about my concerns. We are behind on the timeline for when we are going to get my wife's car back from being built but, I can assure you that we will be reaching out in the near future again.

[rnlabas]

Pics of actual product to this post below. We've made a few changes, added a turn table for our welding, etc. Top notch product! Enjoy.

THAT sure IS beautiful work - I've witnessed A LOT of pipe fabrication in my career and that welder deserves whatever you're paying them ...

[TToysRuS]

Top quality work. I am only wary of these 3.5" systems as I've seen dynos of power losses when you arent running big boost on these, esp on a stock tune car.

[DrMerl]

Here's someone I used to hang out with a local shop long ago, knows his stuff. This is a clip on pressure differential and how turbos love it.
https://youtu.be/DvMBbojZpII?t=473

Used to be for turbo applications it was how loud can you stand? haha, dump right off the hot side.

I'm hoping for a bit better spool up time. I'll be keeping the exhaust valves so the ECU can do its thing down low. S2E85 on stock turbo is about it, make things a little easier. The loss of weight will be nice.

[TToysRuS]

Here's someone I used to hang out with a local shop long ago, knows his stuff. This is a clip on pressure differential and how turbos love it.
https://youtu.be/DvMBbojZpII?t=473

Used to be for turbo applications it was how loud can you stand? haha, dump right off the hot side.

I'm hoping for a bit better spool up time. I'll be keeping the exhaust valves so the ECU can do its thing down low. S2E85 on stock turbo is about it, make things a little easier. The loss of weight will be nice.

Someone posted up dynos (trying to find the post) showing 5-7whp and wtq repeatable losses from a 3.5" system which returned on a stock exhaust. Thats info i'd want, but to each their own. Tuned, dif story im sure up top.

[ZTTRS]

will any of you guys be dyno'ing the exhaust?

[ZTTRS]

what a beautiful exhaust!

[DrMerl]

Exhaust arrived today safe and sound, functional artwork!

[jl87]

Be sure to post up sound clips once installed! What is your setup that it's going on?

[TToysRuS]

will any of you guys be dyno'ing the exhaust?

I second this

[DrMerl]

New exhaust is installed. No dyno numbers or audio yet, working on that, but do have a Draggy. I'm more interested for now in how various parts work as a whole system.

Initial impressions after approx. 150 miles.
Fitment is PERFECT. It exactly matches the under carriage spaces, nothing hangs low or looks out of place. Tips fit nicely under the AP rear diffuser. Look is OEM++ =) Installed by TAG Motorsports, they see some pretty nice stuff and had good things to say about how nicely it fits and sounds.

Being that hatchbacks are giant barrels, drone can get out of control. I'm opting to keep the stock interior because even with 034DP, 034 mids and stock back, there is drone in the 2000-3000 rpm range with light throttle load (like going up a slight incline or just low speed cruising). Thankfully I got valved.

The exhaust "instrument" has certainly changed - idle is deeper, more "quiet" meaning more pleasant, not so much sounding like a tractor. The voice is now throatier all around. If you run valves open, it's best to stay over 3K rpm, no drone, but under that be ready to mitigate with your foot and the valves. There is no deceleration drone at all from higher rpms. At 65-80 MPH freeway cruising, at light throttle any drone is easily controlled with your foot, if you tip into it below 3K you hear it, then it all goes away over 3K rpm. Using Sport with exhaust Standard sound, it's easy to stay nice and chill while cruising. I'm using 034 tuning and it has respectable pops on decel, these are more muted now (good for me). At WOT it's great, not out of control loud like a yippy V8 or buzz bomb 4 cyl. My mature ears are down with this set up.

Butt dyno says acceleration is smoother, speeds are coming up quicker. It's a little easier to control some of the on/off turbo power delivery while not at WOT. I also had TAG install the 034 4" elbow (I had the 4" 034 intake already), didn't feel any loss of mid-range or initial punch, top end is better. It feels easier overall for the engine to get to power.

The weight, oh yes, the weight. Sure as heck can feel the loss of weight, giving faster accel luv from any speed. This is in addition to the 40 pound subtraction using an Antigravity lithium battery. Hard to say what part did what, but overall the system of 034 parts, AP aero and dropping weight is working wonders.

[mtwallace85]

Sounds like a great purchase. Out of curiosity, how’d you go about mounting the battery?

[DrMerl]

Sounds like a great purchase. Out of curiosity, how’d you go about mounting the battery?

Factory mount/strap worked perfectly, power cables not stretched or kinked, 15 min install, with 5 of those minutes slugging the stock battery around =)

I got the 60AH version from here - https://redmistracing.com/ols/produc...thium-s5-s4-s3. Current price actually came down about $80-100 vs last year. The quick clip for the battery tender (CTEK) works great, enough cord to go from trunk, out passenger window to an outlet. I've not tested how far I can let the car sit, I just keep it plugged in all the time.

[jl87]

@mercer, I saw you're using different mufflers on the 8Y. Is this due to more space vs the 8S, or to further help with drone?

[TToysRuS]

@mercer, I saw you're using different mufflers on the 8Y. Is this due to more space vs the 8S, or to further help with drone?

Straight through mufflers wont cure drone, just take out a bit of volume and rasp. Need some side branch helmholtz pipes or a RSC style Corsa muffler to wipe it out.

[DrMerl]

Straight through mufflers wont cure drone, just take out a bit of volume and rasp. Need some side branch helmholtz pipes or a RSC style Corsa muffler to wipe it out.

Yup, both rasp and volume are lower/deeper with the 485, but drone is there. I think they did a good job to keep drone controllable. You have about a 1500 rpm range where you know you'll get some drone with any load at light throttle, so just down shift and not lug the engine. No drone while at cruise (level road, stay out of boost, 60-80MPH). Valves open is only fun while zooming around. I imagine that's what some of the track exhausts sound like, yeah it's loud in the cabin.

Recently did several hundred miles going up the coast, stop go, 30-60MPH. If you want to stay quiet and respectable it's very easy. You could drone yourself silly, or you can feather the throttle and save some fuel too (E85, got 19.8 mpg, miles div. gal). Had a friend of mine go with me for the MILF Test, passed easily, she said the extra sound was not that loud or annoying. Normal conversation not a problem.

As an aside, she also liked how smooth the car felt at speed and direction changes vs previous suspension updates. Adding the 034 FSB and 034 Camster mounts made a very nice difference, this is with all the other 034 sus. bits. The stock shock controller is working well so far with the changes, still needs a bit more dampening, but not bad. I'm also noticing the car is losing less speed while coasting down from triple digits, smoother acceleration at triple - maybe the Audi aero stuff is actually working =) Also switched to Motul 8100 eco-nergy, valve train a little less clacky at idle vs Liqui Moly Molygen.