Maximum Flow Muffler - Single 4" Inlet Centered/Outlet Centered STI The Boost Lab BL67R is

The Boost Lab BL67R is assembled and vsr balanced in-house and comes with an industry standard 1 year unlimited mileage warranty

eliminating the need to create complicated logic programming in the PDU

Measurements in OD

Two O2 sensor bungs

Laser-etched timing marks

Maximum Flow Muffler - Single 4" Inlet Centered/Outlet Centered STI The Boost Lab BL67R isThe Hooker Maximum Flow muffler actually flows 99% and produces more horsepower and torque than a 2 1 2" open pipe. The Maximum Flow is constructed of an aluminized steel case with a stainless steel internal core and uses a high temperature packing material to absorb excessive noise while allowing a mellow powerful sound. As with all absorption type silencers, the Maximum Flow will be most effective for sound control with lower compression (8. 5 to 1