Burns Big Momma Stainless NhB 2-into-1 Exhaust for Harley M8 Touring Models

Description Burns Big Momma NHB Exhaust for 135 CID M8 Baggers Running a 135 cubic inch Milwaukee-Eight build?You need an exhaust that can keep up. The Burns Big Momma NHB Exhaust delivers the airflow and scavenging your big-inch bagger demands. Burns Stainless designed this system specifically for high-output M8 builds that push serious horsepower. This isn’t a mild bolt-on upgrade. This system supports aggressive cam profiles, high compression setups, and fully built race-style engines. Built for 135 CID Performance When you step into 135 cubic inches and beyond, exhaust restriction kills power. The Big Momma features optimized primary sizing and a precision collector that supports maximum flow at high RPM while maintaining strong midrange torque. This exhaust supports: 135 cubic inch builds 139 / 143 / large-bore combinations Big cam packages High compression setups High RPM horsepower builds Let your engine breathe the way it was built to.