considering to buy GIAC Chips for my 98 Audi. It is hitting to 120.000 miles. Do you guys think it is worth to put GIAC Chips on this Engine with 120k miles on it?

something with the vag can trick the engine into thinking its an A6, supposedly puts out 200 horse and its free....still looking for info though

I am also looking for info about Vag. Can you share any useful info if you could get? I love to do some mod on 2.8 engine if vag can do something.

Thanks,

Kevin

you change the last digit in your engine code from a 1 to a 2. This is the chassis code number and 1 is for A4, 2 is for A6. Someone please correct me if i'm wrong.

So you've got us all riled up, everyone wants to know how to trick the ECU into thinking our 30v 2.8s are in an A6. Do you have any way to look up the soft code for this? Or point us in the right direction towards finding it?

thanks a bunch,

Andrew

The reason the A6 has more HP with the same engine is because it is running a less restrictive true dual exhaust. Changing your ECU to A6 mode will not gain you any power, it is pure placebo effect.

Love the chip. Disagree with many that it isn't worth it due to "minimal gains"; $300 well spent (GIAC).

Ben

i cant find the post right now but someone did a baseline dyno and then a dyno after the mod and it showed a slight increase in horsepower and tourqe

I really don't think that is the case. Esp considering the same dyno can come out with different results on the same car. give it a shot, see what happens.

and if it makes me feel like its faster im gunna do it even if its a myth

I was just under the impression that the true dual is what gave the a6 the extra juice.

There has to be something besides a s/c, chip, Stg3 MAF, exhaust to make this car a bit quicker (not that I'm complaining, I love my 2.8).

Also don't forget the underdrive pulleys

but the top end was very flat compared to the A4 setting. Needless to say, I went back to teh stock setting. I have since coded my A6 to the A4 coding. The biggest differences are timing, and when in the RPM band the intake manifold changeover happens. In the A6, it happenes at 3k, on the A4, 4k.

When you have the tiptronic you get 2 chips,
one for TCM & ECU.

I think an exhaust would help, but my car sounds pretty good now just stock. Heat-shielding on the airbox, intake runner and MAF helps too. I have Beru Ultras and a K&N. German Syntec too. I have to say the Auto-Rx.com treatments added some punch by freeing up ringpacks.

it just improves what you already have. It gets rid of the annoying flat spot (sluggishness) when you're trying to take off from the ligh.

Is the pes a cold air intake? or just short ram air?