R1 Performance Package for CLK 550 (C209- 413 HP / 422 LB-FT) porsche-911--991-1---2011-2016--gt3-esr3707851 8 Turbo S [2 Filters

8 Turbo S [2 Filters Required] (HP: 500/540/550 | Year: 07 > 10)

204 - C 63 AMG Coupe

- Spiral Bound

We’ve extracted additional power through improved gas-flow dynamics and a drop in back pressure

Akrapovic LDelete-R for Ferrari 458

R1 Performance Package for CLK 550 (C209- 413 HP / 422 LB-FT) porsche-911--991-1---2011-2016--gt3-esr3707851 8 Turbo S [2 FiltersR1 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