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We at Supersprint are extremely proud to offer a performance exhaust for the 2004-2011 mercedes SL 65 AMG. During Supersprint's long history of dyno testing, the Mercedes SL 65 AMG V12 Twin Turbo was one of the first performance cars to break the 1000 Nm torque barrier. While other cars made more peak Hp, at that time, the SL 65 fought them back by making monster torque in the low and mid rpm range. In spite of those impressive numbers, we knew the some amount of performance was actually left on the table by the AMG Factory R&D Team, blame it on the restrictive design of the stock catalysts. As soon as we saw this, we at Supersprint immediately jumped at the opportunity of making the V12 engine breathe much better, by improving the exhaust dynamics. In particular, we started by designing a set of R&L, straight Turbo Downpipes, adding a larger-diameter pipe front section, and using HJS Motorsport, high-flowing cats, placing them further away from the engine. Based upon our dyno testing results, these are the real, Hp-making components of the entire exhaust. Our Mid pipes and R&L rear mufflers complete the system to perfection. This Supersprint full exhaust raises the potential of the engine to 800 + Hp, with the simple addition of a software tune. While the gains in performance always are our priority, we can proudly say that the sound finally becomes what the SL 65 AMG is up to, at the same time. This Supersprint exhaust is also available for the limited-edition 2008-2009 Mercedes SL 65 AMG V12 Black Series.