COBB Titanium Cat-back Exhaust WRX BRZ A/F Sensor The high grade pure alumina

The high grade pure alumina ceramic and 98% pure copper core enables the dissipation of large amounts of heat to prevent plug overheating and ensure reliable starting

Crankshaft - Salt-bath Nitride 86mm Hardened

Multi-layered steel (MLS) exhaust gasket for the connection between the exhaust manifold and turbocharger

Available in black or silver

All other EJ255

COBB Titanium Cat-back Exhaust WRX BRZ A/F Sensor The high grade pure aluminaEXHAUSTING WORK OF ART COBB exhaust systems are the standard by which all other systems should be judged. This cat back system is fabricated from grade 1 titanium for the tubing flanges and grade 2 titanium for the hangers. The entire system is only 20lbs making it substantially lighter than stock. Every precision TIG weld is back purged to eliminate weld contamination. Slip fit tubing connections provide maximum adjustability during install. The