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For the Performance Series
The RENNtech Rear Diffuser is 100% pre-preg carbon fiber and developed to complement the full RENNtech AMG GT63 aerodynamic program
it is strongly recommended to replace the existing connecting rods to RENNtech's improved and stronger version to protect against engine failure
RENNtech ECU Plus Upgrade for C292 - GLE 43 AMG Coupe
Further tuning opportunities and even more aggressive sound are available with our titanium link pipe set with high-flow catalytic converters
RENNtech ECU Upgrade X5 E70 (2008-2011- N73N2 35d Steptronic Diesel) bmw-x5--e53---1999-2006--esr9900894 For the Performance SeriesRENNtech ECU Upgrade X5 E70 (2008 2011 N73N2 35d Steptronic Diesel). Up to 346 HP + 480 TQ. Gains: +81 HP & +55 LB FT Our proprietary BMW ECU upgrade offers rock solid performance from RENNtech, the foremost tuning authority on Bosch and Siemens engine control units. These same units are utilized in Mercedes Benz vehicles, which RENNtech has been tuning since electronic engine management started to show up in vehicles during the mid 1980's, though our