Better get stage 2. I had good gains with just the cats removed and stock tune. My guess is a stage 1 is about equal to a cat delete with no tune. Getting the cats out sounds decent too. We should get some local seattle area owners together for some dyno fun.
02 Tiag e46 M3|6MT|GC plates|MCS c.o.|GC bars|GC race control arms|GC bushings & bearings|BW eng. & tran. mounts|subframe kit|BW race shifter|BW Jaffster|Euro header|BW race|K&N c.a.i.|Epic race tune|Rouge pulleys|Seibon CF hood|CSL bumper|ST-40|XR-2|SS lines|half cage|Recaro profi|Profi 2 harness|BMWpedals|BW studs|