The reason I originally went with the Dinan stuff was that my car was still under warranty at the time and Dinan backs up the factory warranty.
As far as this thread being pro Dinan only... That just wouldn't be fair to the other forum members. One needs positive and negative reviews to make an accurate decision. Especially on high dollar items.
Dinan CAI &Throttle body, ESS Tuning TS2, Bimmerbrakes gen3 headers, UUC SSK & DSSR. Achilles oil pump, VAC oil pan baffle
M3 Motor mounts, UUC Trans mounts, Modified clutch style LSD 3.15, TMS front subframe reinforcement, Koni Yellow sports,
H&R sport springs, UUC sway bars, BMW Perf. Rotors, UUC SS brake lines, Hawk HPS pads, CSL replica wheels,
Rotora strut bar, FXR HID conversion, M3 Mirror conversion, BSW stage 1 speakers