RENNtech Porsche 997 Carrera S (3.8L DFI) ECU Upgrade (365 HP / 300 LB-FT) porsche-cayenne--9ya---2018-present--po536--340ps--esr1935525 Dyno measured by RENNtech (peak):

Dyno measured by RENNtech (peak): 681 HP @ 6

1 x Exhaust Valve Module

but a dramatically larger

this special package includes the RENNtech T-304 stainless steel (SS) sport mufflers which are 100% hand made in the USA

The R1 Performance Package was developed to deliver maximum power running on standard 93 octane gas

RENNtech Porsche 997 Carrera S (3.8L DFI) ECU Upgrade (365 HP / 300 LB-FT) porsche-cayenne--9ya---2018-present--po536--340ps--esr1935525 Dyno measured by RENNtech (peak):RENNtech Porsche 997 Carrera S (3. 8L DFI) ECU Upgrade. Up to 396HP and 320LB FT. Gains: +11HP & +10LB FT Our proprietary Porsche 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