80 Series Crossflow - 2.50" IN (O) / OUT (D) - Aggressive Sound 2010 Ford Mustang Kits include all new gaskets

Kits include all new gaskets

BBK V6 Mustang dual exhaust conversion kits include a full 2

Replaces Cummins Part #: 3957081

5L has an inherent design flaw where not all of the OE stud locations are utilized by the OE manufacturer which leads to warped exhaust manifolds

Carrera and QA1

80 Series Crossflow - 2.50" IN (O) / OUT (D) - Aggressive Sound 2010 Ford Mustang Kits include all new gasketsThe 80 series is a cross flow design for applications where the muffler is mounted transversely behind the rear end. The inlet is located next to one of the outlets on the same side of the case. Delivering an aggressive muscle car sound both inside and outside the vehicle. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.