RGM’s full-house upgrade costs R268 700 including all management hardware and software, and a 76mm stainless steel Techniflow exhaust system with ceramic-coated tubular headers
With Whipple’s third-generation blower bolted in place, RGMotorsport’s Jeep Grand Cherokee SRT8 6.4 Hemi upgrade produces a Trackhawk-whipping 546kW and 928Nm - enough to propel the burly SUV to 100 km/h in an estimated 3,6 seconds and to a top speed of 290 km/h.
That’s the news from the country’s foremost proponent of aftermarket supercharging and with dozens of blowers fitted to American-based V8s (including 20 Mustangs) they have all the experience needed to claim pole position. And with the latest Generation 3 Whipple unit nestling in the V of the Grand’s eight cylinders, power is delivered in a more refined and effortless manner than before.
There’s more outright grunt too; changing to the latest forced induction technology upped power from the 520 kW previously available, with torque climbing by almost 60 units.
The impressive headline numbers are also thanks to a full RGM-Techniflow dual 76mm stainless steel exhaust system along with ceramic-coated headers to blast out the hot gases inside the pipes with minimal delay. An ECU software download comes straight from the Whipple factory and is fine-tuned by RGM's team to suit our climate, fuel, and conditions.
Each car is optimized on the company’s four-wheel-drive dynamometer and, finally, road-tested.