I have a 2001 Z28 A4 and I was just wondering what I should do next. I'm having custom tuning done with LS1 Edit within the next week or so but I still want to do more mods before I go to the track again. My mods are as follows: Borla full-cat exhaust, SLP ram-air, SLP smooth bellow, MTI lid, SLP 160 thermostat, K&N air filter. I have yet to buy drag radials.

 

Long tube headers, cutout, gears

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First i would swap the thermostat back to the stock unit as the ls1 makes peak power at 178 degrees which you won't make with a 160 stat. Second the k&n filter, every person i know who has done any research into k&n filters has gone back to the stock paper element or to some other brand (i.e. a holley powershot) Third your car is not in any need of a computer tuning yet, the stock PCM is plenty capable of adjusting for the mods you have done, your money would be much better spent in a shift kit or a convertor.


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Chris
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'98 Black Z28 M6
Lid, EGR Mod, Borla Exhaust
SLP Short Throw & ****
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