I went straight through with my 3.0, its nice and loud, it sounds like a Porsche 911. It gurgles a little but I like it, it makes the X sound like a beast!

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2001 X5 3.0 5-Spd Manual, Comfort glass, E46 Sport Seats, Eibach springs, Escort Passport SR7 radar detector, Bi-Xenons, AFE CAI, CDV Free!, Style 87's, 16:9 DVD GPS Navigation, a generic 12" sub, Dension Icelink Plus, M3 steering wheel, 4.4i quad exhaust, Resonator and CDV deleted

1998 328ic Cabriolet, Sparco strut bar, Euro-Ellipsoids w/ Xenons, E46 M3 seats

2001 Acura CL type S

**signature height reduced by Michelle**