Description
SP Concepts Big Bore 2-Into-1 Exhaust For Harley
The Big Bore Exhaust shares a number of design features with the Lane Splitter and Cut Back Exhaust systems, but utilizes a larger 4 1/2″ diameter muffler capable of keeping up with the biggest v-twin motors. Triple stepped headers and a stepped baffle round out this made in USA stainless steel system.
Features:
– 4 1/2″” rolled cone muffler offers increased flow for high performance applications
– Designed to work with properly tuned high performance motors from 88″ to 143″
– Stepped 2 1/4″ to 2 1/2″ baffle for increased mid-range torque
– .065 stainless headers step from 1 3/4″ to 1 7/8″ to 2″ at the collector
– TIG welded by hand from top to bottom
– Machined stainless header collars
– 18mm O2 bungs with 12mm adapters for performance and stock O2 sensors
– Includes all hardware and brackets
– Heat shields available separately
Note: This pipe should not be installed without a fuel tuner. This pipe is designed specifically for high performance applications and is not recommended for stock motors.
