Renntech 82mm throttle body kit forthe M156 63 AMG V8
Renntech is offering a throttle body upgrade for the M156 AMG motors. The throttle body is 82mm and offers an increase in flow of 22% over the standard throttle body. The performance increase is a claimed +11 hp and +8 lb-ft of torque. The upgrade is completely bolt-on but it is priced at an eye popping $3,945. Dinan pricing isn't exactly cheap but they sell 10 throttle bodies for the S85 V10 for less money than this. Contact Renntech if interested.