American Racing: 2001-2006 BMW E46 M3 Long System Headers, 1-3/4" x 3" Cats:With Cats See picture of filters below

See picture of filters below

The CF201 is available in 20 and 21-inch fitments

We realized with the onset of suspension manufacturer's using larger shock body's that the CV needed to be at least as small as the stock one if not smaller so we shortened the flange so any aftermarket one would fit 100%

and our engineering services are available to generate data for new platforms and applications at no cost to our customers

American Racing: 2001-2006 BMW E46 M3 Long System Headers, 1-3/4" x 3" Cats:With Cats See picture of filters belowAmerican Racing Headers: 2001 2006 BMW E46 M3 Long System, 1 3 4" x 3" There is simply nothing currently offered as a package that provides the incredible HP, torque and sound as an ARH full system for your E46 BMW M3. This system features American Racing Headers patented rotational firing, 6 into 1 long tube header system for the E46 S54 powered M3. The Long System is a direct bolt in to your existing Axleback. Available with 1 3 4"primaries. This