Popular mods for 2003 BMW M3

1. 

   MFR# 14336Vibrant Performance - Exhaust Manifold Flange

   Vibrant Performance

   $99.95
2. 

   MFR# 12-117109Bilstein - B1 OE Replacement Rear

   Bilstein

   $23.00$38.00

   Save $15.00 (39%) off MSRP
3. 

   MFR# W72042Whiteline - Coil Spring Seat Bushing Rear

   Whiteline

   $27.76
4. 

   MFR# 22-199492Bilstein - B4 OE Replacement Front Left

   Bilstein

   $139.00$260.00

   Save $121.00 (47%) off MSRP
5. 

   MFR# 90223ST Suspension - Coilover Kit

   ST Suspension

   $977.95