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 system fits: 2001-2006 BMW E46 M3 Product features on this system includes: 100% Made in the USA - Never Outsourced Made entirely of 304 stainless steel 3/8" thick laser-cut flanges for a warp-free seal Hand-ported TIG welded inlets Optimized primary tube routing for superior fit and performance Merge collectors with scavenger spikes Catted systems feature severe duty 300 cell catalytic converters with the option to upgrade to 400 cell G-Sport catalytic converters. Call before ordering to upgrade. Attn. All ARH products are exclusively manufactured for racing purposes. Installing these products on any vehicle eliminates the legal use, in any capacity, on public roads/highways and may be subject to fines and/or criminal liability as per the Clean Air Act.
