R1 Performance Package for CLK 550 (C209- 413 HP / 422 LB-FT) porsche-911--991-1---2011-2016--gt3-esr3707851 0 (HP: 245 | Year:

0 (HP: 245 | Year: 12 >)

lowering the temperature of the brakes and lessening the possibility of brake fade

Front OEM rotor weight – 30

562 HP @ 6000 RPM

RENNtech ECU Upgrade for 212 - E 400 BiTurbo 4-MATIC

R1 Performance Package for CLK 550 (C209- 413 HP / 422 LB-FT) porsche-911--991-1---2011-2016--gt3-esr3707851 0 (HP: 245 | Year:R1 Performance Package for 209 CLK 550. Includes ECU Upgrade and Stainless Steel Header. Up to 413HP and 422 LB FT. The R1 performance package for the Mercedes 550 includes our proprietary ECU upgrade in addition to our stainless steel shorty headers designed specifically for the 550 V8 for a combination that provides increased performance, sound and throttle response across the vehicles entire powerband. R1 performance package includes: RENNtech ECU