Bob W.

...would have to be a race gas program (100 octane). Giac gets +23hp and +28tq in the S4 V8, so the RS4 *should* enjoy at least those gains on 100 octane. By my rough calculations, the cost of running race gas for an entire year would be about $1600 above the current cost of 91/93 octane (assuming 1 tank per week). So for $1600/year, you get, perhaps, 25hp? Not bad. The only other mod currently available that has been proven to increase HP is the Milltek, which is $1700 + installation minimum, and reportedly gives 20hp at the crank.

So tuners, if you're listening, develop a race gas program for the RS4!

ReconTrojan

I run 101 Race Gas as the norm since my Board of Directors see fit to give me a credit card with no limit for expenses! haha, suckers!

So I hope they do it!

larryV

so that's like the equivalent of at least 150 hp at the wheels, give or take 50

ELEVENS

Closer to 2HP for a 20 lbs weight reduction and still worth doing!

daveak05

2 hp for $1700. Why don't you just empty your glovebox? : )

ELEVENS

...along with removal of the liquid bubble gum dispenser, tool kit, tire pump, cd changer, sat radio, owners manual, and of course sunroof delete. Instant FREE 10HP. Yes, I really do drive the car this way.

daveak05

funny thing, had a friend in the passenger seat who opened the glovebox to look at my spare rotor. I accelerated hard from a stop and the thing came flying out and landed in his lap. He's on ED meds now : )

ELEVENS

Just programming for "normally" good gas (93 octane) would bump up HP 10-20 I would guess. Automakers tend to (de)tune timing, based upon an expectation of crummy gas and people cheaping out with mid-range or worse.

Powerchip does this (no RS4 application yet) and offers a 93 version and even a 91 version for the supressed proletariats on the Left Coast.

ELEVENS

i lmao too! Next time use a ceramic rotor, your friend will appreciate it

hottuna

So did you put the RS4 on the card? lol