FMF Powercore 2.1 Muffler - Aluminum 025232 1821-1865 Battery Covers It has increased top-end power

It has increased top-end power and mid and high-range torque levels

High-quality drop-in oil filter

Mufflers feature 16-gauge steel construction and removable standard 2

ECU remapping is required

Locks match so one key will open all

FMF Powercore 2.1 Muffler - Aluminum 025232 1821-1865 Battery Covers It has increased top-end powerBuilt to provide excellent power for todays tracks geared toward 4 stroke machines Smooth power curve throughout the RPM range Large diameter canister for more tenability and longer lasting packing life Delivers a crisp, notable sound Optimally designed to complement performance of FMF pipes; can be used with stock header pipe or FMF header pipes