Comp Cams Camshaft, FE 283TH R7 THUMPR  Heavy Metal Off-Road long exhaust duration and a

long exhaust duration and a generous amount of intake and exhaust overlap - maximizing the rough-idling characteristics of the cams without negatively impacting power or streetability

ensures protection from rain and snow

R-Type front mount intercooler kits maximize cooling efficiency

s answer to the constraints and limitations associated with most piggy-back style fuel controllers

7L engine sizes

Comp Cams Camshaft, FE 283TH R7 THUMPR  Heavy Metal Off-Road long exhaust duration and aThumpr Camshafts are available in three different grind profiles, each one of which will produce a rough, racy exhaust note and impressive amounts of horsepower and torque at a different rpm range. Their cutting edge hydraulic roller design means that they will deliver a substantial power increase over an identical hydraulic flat tappet grind without sacrificing reliability or ease of maintenance. So look no further than the Thumpr line of camshafts