Dubbs

Im going to be purchasing the 4.2 v8 s4 be it a b6 or b7 I would like to know what type of numbers the engine will be putting down with mods. Exhaust, ecu, downpipe and headers. Dyno or track numbers will be very helpful.

Also had another questions me and a buddy of mine that owns a 6.0 liter gto said that only turbo cars have downpipes? This also being what i have thought also. When you say downpipes do you mean yor mid pipe or the actual downpipe?

Stefano Scalia

420hp? - Just a guess.

Pleasanton 335

Yeah...just make sure you put on new heads, and a totally new FSI system.

Soup -er- charge Me

Around 385hp with 91 oct. Downpipes are between headers and cat back

Dubbs

So say after all the mods ecu, cai, headers, exhaust, DP's your looking around spending 5k ? 340 chp + mods 420 chp - 15% at the wheels. So making around 357 whp if your lucky with dyno tune i would assume or maybe more.

I also am wondering the v8 s4's are rated at 13.5 (and is this fairly easy to get to unless your a pro driver) 1/4 mile and I think its 5.5 0-60? With the bolt on mods i would guess that you would be in the high 12's? and mid to low 4's in 0-60? Or am I just praying for too much?

JDBlueAudiS4

All cars have downpipes

Audis or VWs 4Life

"2 weeks" from now APR will have their supercharger kit and I am sure that will allow you to easily clear 400. 344 stock, exhaust gets you 15, dp's are good for another 10, toss in a chip and intake together that might be an extra 25. 390-395 is about the most you can do right now at the crank.

Don't forget this isnt about raw power. Putting the car on a diet might be a good idea too. Light weight rotors, wheels, battery, dump the spare and carry an emergancy kit similar to whats in the bmw m3. That should help you dump 200 pounds or so. (don't quote me on that number) If anything the diet will get you the most bang for your buck as fuel economy should theoretically improve with less weight. Probably the only mod that pays you back long term.

I am starting to wonder if gas goes 4 bucks a gallon what the pay back would be to have the trannie cracked open and 6th swapped to a corvette style 6th gear ratio.

Shooter McGavin

JD, i checked hes right, my milltek snaps right into my engine, no downpipes for me, haha

ESFO

Downpipe = the section of the exhaust system that has the catalytic converters after the exhaust manifolds/headers and before the cat-back which has the mufflers. On a typical V8 performace car it would be called the H-pipe or if designed this way, X-pipe.

JDBlueAudiS4

BTW It just ended up being a coil pack. Put a new one in and I was on my way.