R1 Performance Package for CLS 550 (C219- 422 HP / 421 LB-FT) bmw-7-series--e66---2001-2008--esr3332914 up to + 10 LB-FT

up to + 10 LB-FT

this forged design features much tighter tolerances than spun multi-piece wheels

Get the sound you have always dreamed of out of your SLR

Gains: +95HP & +98 LB-FT

R1 Performance Package for CLS 550 (C219- 422 HP / 421 LB-FT) bmw-7-series--e66---2001-2008--esr3332914 up to + 10 LB-FTR1 Performance Package for 219 CLS 550. Includes ECU Upgrade and Stainless Steel Header. Up to 420HP and 421 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