Resonated (Quieter) Turbo-Back Exhaust System with Hi-Flow Sports Catalyst & Twin JET Trims a18x Retains OE trapezoidal thread with

Retains OE trapezoidal thread with engagement lug

the power gains are substantial

we're excited to be adding the Cobra Sport sound and performance upgrade to the stunning M4

Sintered Paddle friction plates have a much higher friction co-efficient than their Organic counterparts

Sound - Engine at Idle: 71dB (+1dB) - Static 4

Resonated (Quieter) Turbo-Back Exhaust System with Hi-Flow Sports Catalyst & Twin JET Trims a18x Retains OE trapezoidal thread withThe Milltek Sport Turbo Back range offers performance enhancements for turbo charged vehicle owners looking to tune their vehicles. Providing the turbo with an exhaust system manufactured with enlarged diameter throughout for enhanced gas flow properties for lower back pressure as a result of the reduced restrictions and benefits with the suitably aggressive exhaust sound it deserves. The Milltek Hi Flow Sports Catalyst reduces the restriction over