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the factory settings do NOT allow the valves to fully open unless certain speed and/or RPM have been reached
Even when installed on an otherwise stock vehicle
the surface of the link pipes is treated with a coating to increase durability
CLASS E (W 212) 500 V8 [2 Filters Required] (HP: 388 | Year: 09 > 11)
R2 Performance Package for SLR McLaren (C199- 750 HP / 735 LB/FT) bentley-continental-gtc--2019-present--4-0l-v8-tfsi-esr4309533 the factory settings do NOTR2 Performance Package for 199 SLR McLaser. Includes ECU Upgrade, upgraded pulley, Dual Intercooler Pump Kit, Stainless Steel Headers and Sport Mufflers with 200 Cell Catalytic COnverters. Up to 722HP and 715TQ. Gains: +98HP & +140TQ RENNtech SLR package 2 contains our proprietary ECU, pulley, dual intercooler pump upgrade, stainless steel headers and sport catalytic exhaust upgrade for the ultimate in performance and sound. SLR Stock Performance: 626