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Mercedes-Benz SL 550 With RENNtech Mufflers
"Usually, most dyno videos we post are of monsters that have been modified in some of the most extreme ways imaginable. This, this is not the case, as the only modification this Mercedes-Benz SL 550 R231 (also know as the SL 500 in Europe) has is a muffler replacement from RENNtech. Sure, the SL 550 is no slouch to begin with, its 4.7-liter twin-turbocharged V8 delivering no less than 435 hp and 700 Nm (516 lb ft) of torque. What effect would a pair of RENNtech stainless steel sport muffl..." Continue Reading →
Photo credits: RENNtechTV/YouTube
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