3BarBoost has posted that the Mopar 2 1/2" cat-back is all that is needed for S2 or power levels up to 300 HP (which would even cover the base or non-modded S3). I checked with TThrift and he's selling the Mopar cat-back for $399. Borla makes the cat-back exhaust for Mopar. They have a number of versions in a 2 1/2" cat-back (duals and single) and also with a European muffler (close to stock noise level) or American muffler (louder/deeper). I haven't found anyone selling the Borla versions as inexpensively as what you can buy from Tommy (TThrift).
Also, I couldn't find where it was posted, but I think I remember 3BarBoost saying the GT cat is already a hi-flow cat...3BarBoost, is this correct?
Deen
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GT, 5-Spd, K&N filter, Stage I, AGP 3147 Big Turbo, DTEC Fuel Kit, Tial WGA, Greddy Profec EBC, DCR 55mm TB, 05 Plastic Manifold, 180 Deg. Stat, CCA FMIC, AMX hard-pipes, Water-Injection, STS shifter, Needswings 3\" DP w/dump and Borla Cat-back, BG Drop Springs, Eibach Sway Bars, Panther alloys & Eagle F1 Max-Performance Tires. Best run to date...12.93 @113.45MPH.
77 Blown Vette-runs 10\'s @ 136 MPH.
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