Originally Posted by Space Ghost
I was catless with my AA exhaust and switched to HFC. I like the exhaust tone better, no smell and only lost a little power in the upper rev range. Plus gained a little torque down low. Perfect trade off for me.
+1 did the exact same thing and feel the same way
ESS VT2-625 w/ DCT Software | Stack Gauges | 19" BBS FI | Dinan Stg 2 Suspension, CF Strut Braces, & Pedals | Fire Orange Brembo GT 380 F&R | Akrapovic Evolution | Vorsteiner GTS-V Lip, CF Type II Diffuser, & White Piped Floormats | Platte Forme CF Side Skirt Extensions | BMW Performance Seats, CF Spoiler, CF Mirror Covers w/ M5 Paint Scheme, & Performance Steering Wheel w/ Custom White Stripe