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ECU Upgrade | 480HP / 605LB-FT | Gains: +32HP / +67LB-FT
Rated by RENNtech: 669 HP @ 5
SLK 350 BlueEFFICIENCY (R172-M276 Engine) Stock Performance:
Up to 722HP and 715TQ
205 - C-Class AMG Models Pre-FaceLift MY2015-18
RENNtech Long Tube Headers with Downpipes and 200 Cell Sport Catalytic Converters for 230 - SL 63 AMG mercedes-benz-slr-mclaren-slr-mclaren--2005-2011--esr4924260 ECU Upgrade | 480HP /RENNtech Stainless Steel Long Tube Headers with Downpipes and 200 Cell Sport Cats for 230 SL 63 AMG. Gaines: +30HP & 30TQ Designed, engineered and manufactured in house specifically for your Mercedes Benz. Our purge welded, ceramic coated long tube headers feature top of the line big tube 2" diameter T 304 stainless steel tubing and are manufactured from the same high quality materials used on all RENNtech headers. We ceramic coat our headers to
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