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 RENNtech’s tuning software for Mercedes

RENNtech’s tuning software for Mercedes offers significant gains performance across the vehicle’s entire power band

SL (R230) 300 [2 Filters Required] (HP: 231 | Year: 09 >)

ECU Upgrade | 480HP / 605LB-FT | Gains: +32HP / +67LB-FT

Please note that the Mercedes M177 engine performance when measured

SLK 350 BlueEFFICIENCY (R172-M276 Engine) Stock Performance:

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 RENNtech’s tuning software for MercedesRENNtech 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