with the factory CP3 in the valley. The team at SDP designed and cut a custom billet aluminum pulley for the second CP3 to match Fowler’s Fuel FF19 wheels and powdercoated it Illusion Royal Blue to match the rest of the under-hood performance parts. The pair of CP3S combine to deliver plenty of high-pressure fuel to a set of 60% over S&S Diesel Motorsport fuel injectors.
On the exhaust side of the engine, Kerr installed a set of PPE manifolds and up-pipes to improve the exhaust flow over the stock units. From the exhaust outlet of the factory turbo in the valley, the SDP kit feeds hot exhaust gases to the S475 turbine, then out through the length of a 5-inch-diameter MBRP exhaust system that terminates in the stock location with a 6-inch-diameter black exhaust tip. Clean air is drawn into the S475 from the atmosphere through an AFE filter. After compression, it is sent directly to the factory turbo inlet for additional boost. After the intake charge leaves the factory charger, it’s carried to the factory intercooler through an AFE boost tube and out of the intercooler to the engine through the SDP intercooler tube and high-flow Y-bridge intake.
To clean up the engine bay more, Kerr rerouted the coolant hoses and reworked the Duramax wire harness to make it one of the
Fowler’s truck has a great sport truck stance that makes it a fun driver on twisty back roads or the dragstrip.
Moving under the rear of the truck, you can see that Fowler installed a set of adjustable QA1 shocks in the back there as well to help dial in the performance and keep the tires planted to the tarmac.
The rear was lowered by removing the overload springs and installing a set of 3-inch drop shackles.
After lowering the GMC, Fowler chose to go with a set of Fuel 22x12-inch forged aluminum FF19 wheels wrapped in Toyo Proxes S/T 305/45R22 low-profile tires. Note the custom fender work that Classic Collision performed to fit the huge rollers and allow full steering without rubbing.
Looking under the rear bedside fender, you can see the FASS 150 and Diesel South fuel sump that upgrade the factory fuel delivery, as well as the Caltracs bars to help the Panda hook up on the drag strip.
Looking at the back side of the front axle, you can see that they also installed a set of adjustable QA1 shocks to tune the truck for optimal launch characteristics.