RENNtech ECU Upgrade 535i/ix LCI E60 (2006-2009 Manual & Steptronic N54B30) ferrari-roma--2020-present--esr1393932 All RPS wheels are developed

All RPS wheels are developed and tested to comply with TUV standards through Finite Element Analysis (FEA) software

Other companies use a lower cost

Up to 435HP and 314TQ

A surplus of boost will be released to the atmosphere and the turbocharger can be supplied with air quicker after the shifting process

and modifying boost mapping for turbo-chargers of the twin turbocharged 4-liter V8 -engine found in the Lamborghini Urus with gains up to +58 HP and 73 LB-FT

RENNtech ECU Upgrade 535i/ix LCI E60 (2006-2009 Manual & Steptronic N54B30) ferrari-roma--2020-present--esr1393932 All RPS wheels are developedRENNtech ECU Upgrade 535i ix LCI E60 (2006 2009 Manual & Steptronic N54B30). Up to 420 HP + 435TQ. Gains: +120 HP & +135 TQ. 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,