S&S CYCLE Grand National Slip-On Mufflers - Chrome 550-0757B Automotive/UTV Tires - On Road S&S stainless steel bolts with

S&S stainless steel bolts with washers

The cylinder heads on this engine is specially machined to compensate for the non-stock cylinder length

one extra intermediate jet and two main jets

Includes carbon fiber heat shield

Designed for high performance engines with cylinder bores 4

S&S CYCLE Grand National Slip-On Mufflers - Chrome 550-0757B Automotive/UTV Tires - On Road S&S stainless steel bolts withGrand National Slip On Mufflers Chrome Improved horsepower and torque (when used with a Stealth Air cleaner kit; sold separately), Race inspired design, Removable dB reducer for back pressure and sound tuning, Meet J2825 levels for sound, All hardware included, Deep performance rumble replaces stock whisper tone, No mapping required, Sold in pairs, Made in the U. S. A.