My new RS4 - Mods, Dyno, Weights, Pics..

[KryptoniK]

Well everyone I sold my B7 S4 a few months back and am now a proud owner of one of my dream cars.. a 2008 Daytona Grey RS4 fully loaded. To keep things short.. after having my S4 modded the way it was, I couldn't resist to do the same mods to my RS4 and offer the community with some hard numbers on the mods.

I'm not going to get into too much detail on reviews of the mods since most people here know what they're all about and how they improve performance on these cars.

Before I start, I owe a big thanks to KMD Tuning for the clean and professional installation of all these mods. The entire staff there was incredibly helpful with all their advice and worked extremely hard to get everything done ASAP. They also did a great job on the dyno runs giving me a lot of info on how the car runs. If anyone in the Tri-State area is looking for a reputable shop I would strongly recommend KMD.


=============================== INDEX ====================


==== MODIFICATIONS

Tires: Bridgestone Potenza RE0-1R 275/30/19
Suspension: KW-V3 - Corner Weight Balanced
Sways: H-Sport
Shifter: KMD Short Shifter
SS Lines: StopTech
Intake: K&N Drop-in Filter
Exhaust: Milltek Full Non-Resonated
ECU: Revo


==== CHARTS

Dyno Run: Stock
Exhaust/K&N
Exhaust/K&N/Revo

Weight: Stock
Full Mods

Alignment: Lowered Height


========================= MODIFICATIONS ====================

Tires: Bridgestone Potenza RE0-1R 275/30/19

No rubbing at all on stock wheels with KW-V3 installed. Only the front tires rubbed on the top fender liner screw, just removed it and absolutely no rubbing under any circumstances.

Suspension: KW-V3

AMAZING handling suspension, compared to the Tein SS I had on the S4 there is just no comparison. Although the dynamics of the RS4 might be different than the S4, there is a major difference in ride quality and as well as product quality. Unfortunately for me when I had put the S4 back to stock suspension, we discovered that the dampening adjustment knobs on the Tein SS had all seized. Had to trash them

Sways: H-Sport

Added a little bit of harshness going over uneven pavement, other than that it is totally worth the handling improvement. It's like driving on rails.

Shifter: KMD Short Shifter

Quality construction. Shorter shift travel feels smooth.

SS Lines: StopTech

Small noticeable difference, would probably appreciate it more on a track day under extremely heavy braking.

Intake: K&N Drop-in Filter
Exhaust: Milltek Full Non-Resonated

Great sound and saved a good amount of weight, about 30lbs. Increased WHP. Check below for dyno charts.

ECU: Revo

Great re-flash that noticeably opened up the engine and made it more peppy. Increase in WHP. Check below for dyno charts.



============================= CHARTS ====================



Dyno Run:

READ HERE BEFORE you read these charts. The first chart is my final dyno run of my B7 S4 with K&N/Full Labree/Revo, it's to be used as sort of a reference as to how power is measured on this dyno.

The stock chart of the RS4 had some kind of error on the readings. Working on getting a ligitimate copy. I'm posting it up to show the Air/Fuel ratio reading which is accurate so we can compare the difference after the Revo flash is done.

The Revo flash alone showed a gain of 7 whp. I think it might be safe to assume that I gained atleast 15 whp from the exhaust. According to Fourtitude.com's dyno test which was done with only a cat-back milltek exhaust, there was a gain of 9whp in that alone. Although it was done on a Mustang dyno, I don't think it should be too far off.

B7 S4 Modded




Stock B7 RS4


Exhaust/K&N


Exhaust/K&N/Revo




Weight:

READ HERE BEFORE you read these charts. Unfortunately I didn't take the fuel levels into consideration when weighing stock and modified. The stock measure was done with the tank almost down to the last red marking. The fully modified measure was done with half a tank full.

My estimated guess goes as follows (I could be wrong). 1 gallon of gas equals +/- 6 lbs. Stock comes out to around 3,946. After installing the suspension, sways, (heavier) tires, exhaust, I come out to about 3,900. So I think it could be safe to claim a savings of 46 lbs total.


Stock


Full Mods - Corner Weights Adjusted




Alignment:

Lowered Height






=============================== PHOTOS ====================
















Hope you all find this information useful in future mod decisions, or even as a good read to pass time Feel free to ask me any questions.


-Dave-

[skiaudi]

congrats- rs4 is an incredible car

[Cargo8]

beautiful! and props for all the data keeping. very nice, enjoy the ride!

[maybachgt]

Wow! Thank you very much for doing this dyno. I have the same mods on my car so its cool to know I gained some power, even though I definitely felt it. How do you like your tires?

[nimski62]

JESUS CHRIST, thats beautiful!

[cellg8]

Amazingly beautiful!

[wwb4]

Thanks for taking the time to post this data. Also like the new stance of the RS4!

[swoyekr.]

sick stance!

[KryptoniK]

Thanks for the compliments everyone. My love for Audi's has grown greater with the purchase of this car.. absolutely love it!

Wow! Thank you very much for doing this dyno. I have the same mods on my car so its cool to know I gained some power, even though I definitely felt it. How do you like your tires?

The tires feel rigid and accurate. Insane grip over the stock tires, I've made a few people sick to their stomachs on some tight jug handle highway on-ramps.

[gelkad]

Hi,

I have the same car, I was wondering where can i reflash my ECU.. in tri state area,
thanks

[KryptoniK]

Hi,

I have the same car, I was wondering where can i reflash my ECU.. in tri state area,
thanks

Ah sorry I didn't mention where KMD Tuning is located. They're actually in Mountainside, N.J. on Rt. 22 West. http://kmdtuning.com/store/ for directions.

[s4_fishingbean]

oh my......

[johntesi]

Looks amazing! You always post some of the most in-depth and helpful reviews I've seen!
Any idea on how many miles you can expect out of those tires? Any experience with them?
I have been tempted to get some for a while now...

[asurugger]

Thanks for all the data...very sweet. Love the color

[likewater]

Just beautiful man. The car and the write up. Bravo!!!!

[ghoonk]

Thanks for the amazing post. I was wondering if the sway bars would make much of a difference, and if so, what.

Any reason for swopping out the stock sports suspension for the KW V3s? How do the V3s compare against stock?

I'm pretty impressed with the gains you got from the K&N, exhaust and Revo -- 392 to 439 bhp is no mean gain. My only concern would be the drone from the aftermarket exhaust and I've been told that there is no way to get away from that. Reason I bought the RS4 was because I wanted something fast and quiet on the highway, and the stock exhaust makes a great sound when I'm driving with a heavy right foot, which I'm loathe to give up for a permanent, albeit impressive, soundtrack

Any numbers on how the Revo delivers to a stock exhaust and intake?

[SoCalRS4]

so from stock to exhaust and k&n your trying to tell me you got 86 whp. i find that a bit hard to believe if im reading correctly. Also Rs4's put down approx 310-320 stock. im not sure i understand the graphs.

[speedydragon]

so from stock to exhaust and k&n your trying to tell me you got 86 whp. i find that a bit hard to believe if im reading correctly. Also Rs4's put down approx 310-320 stock. im not sure i understand the graphs.

op said that there was some trouble on the stock run.

damn if the stock run was accurate....420chp to 230 whp..almost 50% drivetrain lost!

[Snipps]

Did I see you at a gas station in Scarsdale,NY last night? I saw a daytona RS4 and it looked pretty low, don't see many of them really.

[KryptoniK]

so from stock to exhaust and k&n your trying to tell me you got 86 whp. i find that a bit hard to believe if im reading correctly. Also Rs4's put down approx 310-320 stock. im not sure i understand the graphs.

you,re absolutely right.. The stock chart is wrong.. I stated to disregard the numbers because they are innacurate.. Apparently they input the carinto the system as a watercooled turbo motor on the stock run... The only reading on there that is right is the stock Air/Fuel reading..

I wish it was a gain of 80 whp ;)

[KryptoniK]

Did I see you at a gas station in Scarsdale,NY last night? I saw a daytona RS4 and it looked pretty low, don't see many of them really.

Hmmm not me.. Although I am doing a job in that town tomorrow.. I drive a toyota pickup during the week.

[zachf88]

very nice. Too low for me though!!

[91gl]

you would have made more power if you took it to 8k. thats where these cars make they're power. next time you get dyno'd, rev it out and see the difference

[Lake Powell]

Is there any way I can get the REVO ecu mod without taking the car to a shop. The closest listed dealer is 360 miles away in Denver, I'm in Salt Lake.

[S4J]

Dam I love those fenders! I still wish there was a B6 RS4. Nice ride and thanks for sharing the stats.

[2PUTT]

i think i saw your stock exhaust outside the shop....

[KryptoniK]

very nice. Too low for me though!!

Thanks man.. oh yea I need to raise the car a bit, it settled more than I thought it would...

[KryptoniK]

i think i saw your stock exhaust outside the shop....

Ah not mine. I took mine home the same day... There was actually about 4 stock rs4 exhausts there when I had mine installed. KMD is doing good ;)

[ichibunz]

that's my next mod an RS4..NICE!

[channad]

when I saw the pics, my jaw just dropped

[Dodge2Dub]

I'm a bit confused. The modded S made 236 and the modded R made 326 HP at the wheels? It seems as though the wHp for the S is really low in comparison, especially when you consider that the S was tested in cooler temps.