Mod list that does not hinder reliability...

[xxForgedxx]

I would like to know what exactly can be done for modifications to the B7 A4 without hindering the reliability significantly. I am by no means in need of an over-conservative list of mods such as exhausts with mufflers, and cats and bla bla. I am not that guy who is "that is too loud", "is it going to be EEEEE-LEEEE-gal?" I am coming from an SRT-4 that was set up with no regard to the law, emissions or sound violation however it was set up so that I could run it, run it hard when I wanted to without anything bad happening. Could someone make a list for me?

-What the mod is
-What it does
-Parts cost
-Labor cost (or if it's an easy DIY)
-A no BS AWHP/TQ gain spec... from the group of mods
-1/4 mile-0-60mph times if possible...

kthxbai

[CapstoneJHS]

Search is your friend...

[Quattro]

ya, search is your friend...every mod, if done correctly will not hinder reliability. I assume going big turbo would prob be the only mod to stray away from.

If you do chip, you should upgrade your diverter valve. No exterior mod will create reliability problems.

Same concept works for every car when it comes to moding the engine.

[xxForgedxx]

I fear that though the power can be found easily and for cheap out of the 2.0L that the rest of the car would not cooperate with it. Making good power can mean things like clutches, transmissions, t-case, differentials go sour and fast or suddenly.

[cstarky15]

you won't have a problem with the clutch until you are putting down some serious power. A chip/exhaust/suspension/wheels/DV are going to be the main mods. prices very depending on what you get. Chip=$600 Exhaust=$900 Suspension=$800 for shocks/springs Wheels=Very alot, DV=$250 from Forge/$130 from AWE

edit: $130 from awe

[xxForgedxx]

you won't have a problem with the clutch until you are putting down some serious power. A chip/exhaust/suspension/wheels/DV are going to be the main mods. prices very depending on what you get. Chip=$600 Exhaust=$900 Suspension=$800 for shocks/springs Wheels=Very alot, DV=$250 from Forge/$150 from AWE

How fast will that car be with that set up? 1/4mi and what can it rival at say a road course? WHP? What does your "Exhaust" consist of... Full exhaust? Header? Turbo back? or cat back?

[cstarky15]

it is just a cat-back. You can get a straight pipe for it or high-flow cat. But if you are in a state that has to pass your car i would do the high-flow cat. If you search b7 1/4mile times i'm sure you can find someones.

[Slo.Mo.Shun.]

All you need is the bare basics.

Chip, test pipe, and Dv.

[xxForgedxx]

All you need is the bare basics.

Chip, test pipe, and Dv.

I saw on the APR web site that there is an Audi A3 S-line that has a TBE from APR... I would think that significant gains over a cat back could be had with this. Am I right?

[Slo.Mo.Shun.]

Catbacks really don't do much in our cars.

[Obvis07]

just chip it and work on wheels and suspension.

[Turn10]

I would say that installing a new air filter or installing a new chip.

Filter:
http://www.knfilters.com/

Chip:
http://www.goapr.com/

[Quattro]

chip def something you need to do, hands down. No matter what company you choose you will not be dissatisfied.

coming from your srt-4, it will be hard to compare it audi. The car is lighter and a tad more cheaper to mod it. Audi can take the abuse, engine wise!

[TheHeggi]

So at first I looked at this and thought well of course search is your friend. Then the thought came to me...an A4 is by no means comparable to an SRT-4.....I hate to reiterate the same thing you've probably heard the whole time you owned the car, but here it goes....it's just a really fast Neon. It was built with most of it's budget put into going fast reliably and not so much on the chassis, suspension, fit/finish, etc. It was a car produced to satisfy the desire of the avg 17 yr old pizza boy's need for owning the streets. With that said, the A4 is your first step into owning an adult car. I'ts refined and can be mature, but also a perfect transition for a sporting young lad. It can be fun and kinda grown up, but by no means is it a track car (w/o thousands invested). It's got some pep and some potential, but mostly it's an entry level luxury car. From the questions you posted, it seems like you're looking for another SRT but one that the girls will actually like to be seen in...of course I'm not looking to crush any egos and start an e-fight, I just don't think these cars are comparable and from the questions upstairs, it seems like you're looking for something that doesn't exist either in this price range, or at all...the perfect car

[ItsThat2.0T]

So at first I looked at this and thought well of course search is your friend. Then the thought came to me...an A4 is by no means comparable to an SRT-4.....I hate to reiterate the same thing you've probably heard the whole time you owned the car, but here it goes....it's just a really fast Neon. It was built with most of it's budget put into going fast reliably and not so much on the chassis, suspension, fit/finish, etc. It was a car produced to satisfy the desire of the avg 17 yr old pizza boy's need for owning the streets. With that said, the A4 is your first step into owning an adult car. I'ts refined and can be mature, but also a perfect transition for a sporting young lad. It can be fun and kinda grown up, but by no means is it a track car (w/o thousands invested). It's got some pep and some potential, but mostly it's an entry level luxury car. From the questions you posted, it seems like you're looking for another SRT but one that the girls will actually like to be seen in...of course I'm not looking to crush any egos and start an e-fight, I just don't think these cars are comparable and from the questions upstairs, it seems like you're looking for something that doesn't exist either in this price range, or at all...the perfect car

That was funny,insulting, and respectful all in one, nice! hahah

[xxForgedxx]

So at first I looked at this and thought well of course search is your friend. Then the thought came to me...an A4 is by no means comparable to an SRT-4.....I hate to reiterate the same thing you've probably heard the whole time you owned the car, but here it goes....it's just a really fast Neon. It was built with most of it's budget put into going fast reliably and not so much on the chassis, suspension, fit/finish, etc. It was a car produced to satisfy the desire of the avg 17 yr old pizza boy's need for owning the streets. With that said, the A4 is your first step into owning an adult car. I'ts refined and can be mature, but also a perfect transition for a sporting young lad. It can be fun and kinda grown up, but by no means is it a track car (w/o thousands invested). It's got some pep and some potential, but mostly it's an entry level luxury car. From the questions you posted, it seems like you're looking for another SRT but one that the girls will actually like to be seen in...of course I'm not looking to crush any egos and start an e-fight, I just don't think these cars are comparable and from the questions upstairs, it seems like you're looking for something that doesn't exist either in this price range, or at all...the perfect car

You are right in most of your post. The SRT-4 is nothing but a budget car with the budget dropped into performance only. The car has a stock Quaife LSD, stock rubber are BFG KDW's and the 2.4L Turbo can make 500whp on stock internals, the clutch is good for 300+whp and the transmission is slick and tough... BUT that is as far as it goes. The rest is... Neon. But people buy it for cheap/tough thrills. I am looking for thrills and some even if the thrills are not of the same caliber, which they won't be.

How much HP can the clutch,t-case,transmission hold up to on the A4? And how about the motor?

[Glassnpowder98]

You probably won't be able to find an answer for how much power the car can handle because not many people, if anyone are running serious horsepower as of yet. This is mainly due to no big turbo kits being available to the masses yet. This should be changing in the next few months as about 4 companies are getting set to put turbo kits on the market. I think the most hp people are putting down with a ko4 is around 350-380 hp at the crank (correct me if I'm wrong) and I haven't heard of any clutch or transmission problems

[xxForgedxx]

You probably won't be able to find an answer for how much power the car can handle because not many people, if anyone are running serious horsepower as of yet. This is mainly due to no big turbo kits being available to the masses yet. This should be changing in the next few months as about 4 companies are getting set to put turbo kits on the market. I think the most hp people are putting down with a ko4 is around 350-380 hp at the crank (correct me if I'm wrong) and I haven't heard of any clutch or transmission problems

I do not NEED serious power. I just want something between 12-14 flat 1/4 mile time. Not that I will take it to the 1/4 track or have that be the purpose of the car I just use that spec to guage performance.

[D-techniK]

Would you please give alittle more info on the specs/numbers you are shooting for?

It's true the SRT is quick, but I have yet to see a mature SRT-4 driver. (no offense)

[autoverruckt]

Be prepared for "mod sticker shock" with the A4. Its a little more technically advanced so certain mods take time to develop compared to the SRT. You unfortunately will not find big HP numbers on here compared to the SRT forums.

Like everyone else said, get a chip first. Enjoy it and then keep researching to find "your tune." APR, GIAC, REVO are the common ones. Not a DYI and need to find the closest shop that supports one of these.

If I were to buy and exhaust today my first choice would be Stasis. All exhausts seem to have the same performance gains, but each differs in tone and the dreaded cabin drone. Stasis seems to consistently be the quietest. Look up AWE, APR, Stasis, Milltek exhaust on youtube for comparisons. (can be DYI)

A4's also make no use of a BOV (air needs to be recirculated since its metered), but you may have to upgrade your DV if you chip. Depending how heavy your foot is will determine the stock DV's life. (can be DYI)

Suspension upgrades really transforms the handling and feel of this relatively heavy car. Coilovers are your best bang for the buck followed by a rear sway upgrade (oem RS4 is pretty inexpensive). Stasis again seems to be pretty popular, but I haven't heard anything bad with any of the other ones out there. (DYI)

Look up Auditude2.0T and his mods/input. He's been doing alot to his car.

Finally, IMHO the A4 is not a good overall package to make fast especially compared to the domestics. Its expensive and requires alot to be fast (is there even a 12sec B7 on here).

Enjoy your A4 and get a feel for it stock so you can appreciate your future mods. Good luck in your mod-quest.

[xxForgedxx]

Would you please give alittle more info on the specs/numbers you are shooting for?

It's true the SRT is quick, but I have yet to see a mature SRT-4 driver. (no offense)

I am looking for something that is at least Legacy GT quick. Which in stock form is good for a 14 second flat. That car is rated at 250hp. I don't know what it puts to the wheels but it's an AWD car so I believe the drivetrain loss is 23%? Vs. the basic 17% of a FWD or RWD car?

[D-techniK]

Just a chip will give you 30-50 hp easy. (depending company)

Sounds to me like you are shooting for a Stage 2 car.

[xxForgedxx]

Just a chip will give you 30-50 hp easy. (depending company)

Sounds to me like you are shooting for a Stage 2 car.

Most likely. I want as potent performance as I can get with this car while still retaining a non-problematic area. I got rid of my SRT-4 because it was all play, no business. I like the A4's look and feel but it is ALL business and no play. I am hoping you can do some things to it, and make it both.