Challenge - E92/93 GT Carbon Race Diffuser Coupe/Convertible M3
Designed, engineered, and manufactured in the USA, the GT dry carbon r...

Challenge - E92 M3 Stainless Steel Sport Exhaust

The Challenge Sports Exhaust features 304 stainless steel pipi...


Ohlins - Road and Track Coilovers DFV - Honda S2000
The high-revving, heart-fluttering, screamer from Honda, the S2000 is ...

Challenge - F30 335i Catless Stainless Steel Downpipe

New for 2012! Challenge has designed their new F30 335i stainless s...


Eisenmann Sports Muffler for E92/E93 M3
Eisenmann exhausts are engineered and manufactured (Hand-crafted) in S...

Challenge - S2000 Performance Brake Line set 2006+

Designed and manufactured by GT Motoring under our new productline,...