I have a 1994 Formula A4 car. I would like to know what kind of mods I need to add to my car to get the rwhp and torque of a 98-99 LSI A4 car. I currently have the hooker aerochamber muffler, coolant bypass, and high flow cat. Also, how much power am I losing by having just the muffler instead of the whole catback.

 

Look at my mods in my Sig... Haven't lost to an LS1 yet.

 

Ive spanked LS1 many times.......

 

i can give an ls1 a run, only lost to 1 so far and that was because of RT. My 13.4 was against an ls1 and i spanked the crap out of him, and it wasn't all because of RT or 60'. It doesn't take as much as some people make it out to. mods in the sig

 

atleast all the bolt ons...that should put you somewherea round a a4 ls1 numbers

 

muffler gives u around 5 hp...catback will give you something near 10