Not having much fun finding aftermarket places online... Please can you post your links here?

Cheers,
Mark

There aren't all that many aftermarket parts out there to be honest.

Wheels
Exhuast
Brakes (pads and new calipers/rotors)
Suspension (coil overs and sways)
Gruppe M intake
Clutch
Chips

http://www.stasisengineering.com/
https://www.gruppem.co.jp/onlinestore_en/index.php?main_page=product_info&products_id=540
http://www.stasisengineering.com/Category_Select.aspx?VID=208
http://www.gmgracing.com/audi_exhaust_gmg_wcrs4.shtml
http://www.stratmosphere.com/milltek_rs4_exhaust.htm
http://www.revotechnik.com/products/softwareProduct.aspx?pvID=752

That's most of it.

http://www.jhmotorsports.com/ JH Motorsports - Love their shifter.

http://www.stasisengineering.com/ Stasis - Great suspension

I've always felt that this car really needs nothing done to it. It's stock performance is on a very high level and it is not deficient in any way whatsoever. If you choose to mod because you like modding, go for it, but there is little to be gained compared to what can be done on other vehicles.

Even with wheels, the most common mod done to any car, there are hardly any out there that look as good as stock and one that I know of that actually looks better than stock. Most of the wheel options that will fit properly will be custom builds and will cost over $1k each. HRE, iforgged, 360Forged, OZ Superleggera III can be custom made to fit without spacers. A number of high-end BBS wheels will fit but with spacers.

Expanding on some of the items listed above:

There are 3 full suspension options: Stasis MS & SL and KW Variant 3

There are 2 spring options: H&R and Eibach, but these will further stress your already questionable DRC system

There is one sway bar option: Hotchkis (?H&R)

There are 3 brake options: Alcon, MTM, Audi Ceramic($16,000)

The exhaust options are: Milltek, MTM, GMG, Tubi, ABT(hard to get), Magnalflow, AWE(coming soon)

The Gruppe M intake looks nice, and at least subjectively, there has been one report that the owner definitely feels an improvement in upper rpm power/throttle. Costs $1500, however.

Stratmosphere and JH Motorsports make short shifters, but the change won't be so dramatic as with some other Audi models.

The Euro steering wheel is also a sexy piece, but since it is the stock Euro wheel, I don't know if it is really a "mod"....more like an "option" in my eyes.

There are several public ECU flashes: Unitronic, Revo, Singh Autosport. All will give you about 10hp gain at the high end. Little to no change in the overall torque curve however. Remember, however that the gain will come at the expense of your engine warranty on your $22,000 engine. Worth it for 10hp????

You can always mod the Audio system, which is arguably the weakest stock design element in the car. Many of us have added a powered sub to the stock Bose system with surprisingly good results.

Bottom line is that mods for this car are very expensive, keeping in line with the level of car that it is. There is little to nothing to be gained performancewise over stock. If you want to mod the car, do it for the love of modding, but don't expect any miracles like you could achieve with a B5 S4 for example. That isn't a bad thing. It is a testament to just how good the stock RS4 already is.

Brembo is also developing a kit for the RS4. The front kit should be out in about 4 weeks. It will be a 380mm disc with a a forged 6 piston caliper. Very nice upgrade if you track your car.

Excellent Post Vijay! Thanks :)

I've always felt that this car really needs nothing done to it. ....

There are 2 spring options: H&R and Eibach, but these will further stress your already questionable DRC system



agree, the car is a very good package as is...

re: Eibach, I've been a fan for a long time, my M3's had them, my current e46 still does...

they have a very nominal rate increase over stock, ~5-7% for the e46, and mild lowering e46 F/R 0.6/0.9...

I can't find anything on the Eibachs for the RS4...any links?

thnx

There sure ARE a lot of links out there, you just need to know where to look!

The mother lode/grand daddy/treasure trove of links for everything Audi/VW! THE link source (http://www.vaglinks.com/VAGLinks.asp)

I'm even on there right under Force5!

agree, the car is a very good package as is...

re: Eibach, I've been a fan for a long time, my M3's had them, my current e46 still does...

they have a very nominal rate increase over stock, ~5-7% for the e46, and mild lowering e46 F/R 0.6/0.9...

I can't find anything on the Eibachs for the RS4...any links?

thnx

I went to eibach's website and could not find an RS4 application listed. I made the list from memory and this was actually the one item that I was uncertain about (go figure).

I really thought I had seen an RS4 application, but obviously I was mistaken. I still do recall one other lowering spring application other than H&R, however.

Remember that with springs, if you lower, you must, by necessity, stiffen the ride or else you will keep bottoming out over bumps, dips, etc. Since the DRC system seems so fragile to begin with, springs have not been a popular mod for the RS4

The Brembo brake system is available now. 380mm two piece disc, six piston monobloc caliper.

The Brembo brake system is available now. 380mm two piece disc, six piston monobloc caliper.

Im not a super genious when it comes to braking systems but would the brake disc from this kit be able to replace the OE version? Or is the only option for stock brake disc replacements still Audi?

Also, why go from an 8 piston setup to 6 piston?

The new disc is 380x34mm compared to the stock disc of 360x34mm so it wasn't designed as a disc-only solution..

The new kit should have better thermal capacity and a wider range of pad options. The increased thermal capacity will lower overall temps and keep heat out of the caliper, in turn reducing fade and extending pad life. The replacement disc is directionally vaned, floating and has a two piece design that will cool better.



It's not all about piston count, but more about disc and caliper design working together. The eight piston caliper uses four small pads that don't cut it on the track and the disc design is really only appropriate for street use as well.


The guys at Streamline in SLC are getting the first kit so I'm looking forward to a report back on the actual performance gains.