bmw has a muffler bypass that has "bearings" in it, same idea is used the vw r32 factory muffler bypass that opens @ 3400 rpm..
bmw has a muffler bypass that has "bearings" in it, same idea is used the vw r32 factory muffler bypass that opens @ 3400 rpm..
If you change out the plugs should you change the wires to? I always did with my 91 blazer.