Beyond Stage 1....?

[B5Newbieone]

I have a 2001 S4, with 109k miles, and a GIAC stage 1 setup. Here is my question:

How significant is the performance difference from stage 1 to stage 2 & 3? Where in the RPM range do you obtain the power with the later stages?...

thanks,

AL

[xwilliams23]

I skipped stage 1. But the jump from stock to stage 2 is massive! Makes your car feel like the fastest car on the roads. I'm sure from 2 to 3 is also a big difference considering the mods that are done for it.

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[DieselElectric]

Stage 2ish.


Stage 3.


Stage 1 is significant from stock.

1-2 is decent.

2-3 is like stock - stage 2, and can vary widely depending on how far you want to take it.

[DarthWinja]

Mine's stock w/intercoolers and cat-back, I've been wondering the same thing. Going stage II soon.

Rose: B5S4, Judith: Stage III B5A4 daily.

[FlyboyS4]

I have a 2001 S4, with 109k miles, and a GIAC stage 1 setup. Here is my question:

How significant is the performance difference from stage 1 to stage 2 & 3? Where in the RPM range do you obtain the power with the later stages?...

thanks,

AL

Stage 1 -> 2 is a minor increase.
Stage 1/2 -> 3 is significant, as shown below.

[ajee622]

people still drive with stock ecu's??

[rubbndubbn]

people still drive with stock ecu's??

I do! Bone stock S4 with 95k miles on it

[KeatS4]

people still drive with stock ecu's??

My mom lol

[B5Newbieone]

Great info guys. I am thinking about adding a full exhaust system to gain some additional sound/feel and power before I venture into turbo's, top end, etc...

[xalents23]

Best thing for you to do is go to an Audi meet. And most likely there will be a variety of b5 s4 setups. And the owners would probably be happy to give you a ride in there cars.

[DieselElectric]

Great info guys. I am thinking about adding a full exhaust system to gain some additional sound/feel and power before I venture into turbo's, top end, etc...

Downpipes. They also make the stock exhaust sound kind of cool.