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SL (R230) 500 V8 [2 Filters Required] (HP: 306 | Year: 01 > 06)
CLK COUPE' (C 209) 280 V6 [6 gear] [2 Filters Required] (HP: 231 | Year: 05 > 09)
The R3 performance package includes everything found in package R1 & R2 with the addition of our stainless steel long tube headers for more performance and sound in addition to our transmission performance upgrade
5" Weight: Construction: 1-piece Forged Tire Size: 255/30-20
RENNtech ECU Upgrade for 221 - S 550
RENNtech R1 Pkg | C218 | CLS63 AMG | 696 HP / 801 LB-FT | M157 | 5.5L V8 BiTurbo audi-q7--4l---2006-2015--4-2-v8-tdi-esr6363710 SL (R230) 500 V8 [2R1 includes: ECU Upgrade, Diverter Valve and Air Filters Gains: +146HP; +257LB FT The RENNtech R1 Performance Package is the perfect entry level performance upgrade for the E 63 AMG. With the combination of the RENNtech ECU Upgrade and the latest, 3rd generation Diverter Valve RENNtech is able to add up to 146 HP and 257 LB FT to the 5. 5L V8 BiTurbo engine (compared to RENNtech rated stock performance). The addition of the upgraded diverter valve