Pay in 4 interest-free payments of $280.00 Learn more
Ships within 48 hours · Estimated delivery Aug 15 - Aug 20
665 awtq @ 3
The RENNtech toe link kit also allows the possibility of fine adjustments to the suspension and of bump steering for additional stability and improved vehicle handling characteristics
+81 HP / +55 LB-FT
CLASS R (W 251) 350 V6 Blue Efficiency (HP: 306 | Year: 12 > )
RENNtech ECU Upgrade | R231 | SL 550 | 500HP / 625LB-FT | 4.7L V8 BiTurbo | M278 mercedes-benz-amg-gt--190---2015-2017--gt--2016-2017--esr9621144 665 awtq @ 3ECU Upgrade 500HP 625LB FT Gains: +26HP +59LB FT RENNtech tuning products are certified to meet CARB standards in all 50 States. Our intermediate level ECU upgrade for the Mercedes M278 engine still offers huge gains in performance across the entire RPM range, but with a slightly reduced peak HP and torque from our standard tune. This is ideal for customers who want increased performance in their daily driver without worry of extra strain on driveline
US$ 250.50
US$ 134.50
US$ 118.00
US$ 120.00