American Racing Headers Long System

There is simply nothing currently offered as a package that provides the incredible HP, torque and sound as an ARH full system for your 4.0L V8 BMW M3. The Long System is a direct bolt-in to your existing Axleback. Available with 1-5/8" or 1-3/4" primaries. If you are looking for a louder sound, consider our "resonator delete" option.

This system fits: 2007-2013 BMW M3 4.0L V8

Features:

• 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 200 cell metallic substrate catalytic converters for extreme durability

• Dimensions: 1-5/8" x 3"
• Catalytic Converter: Free Flow Race System
• Resonator: No