SpeedFactory revealed their latest tuning package for the mighty Challenger based on the SRT8 model. It’s called the SF600R, and there’s a clue. This car packs 600 hp, but unlike every other tuned HEMIs out there, it is normally aspirated. The modifications been deep though, as the standard 6.1 liter V8 now has a displacement of 7 liters.

To reach peak performance SF engineers machined the Challenger’s engine many times and installed custom Comp hydraulic cam along with an 85mm throttle body. Additional SpeedFactory performance modifications include a CARB- certified high volume air intake and Corsa stainless steel cat back exhaust system for better breathing. It also has a 6-speed proper manual gearbox.

All these efforts mean that the SF600R can deliver 595-605 hp on 91 octane pump fuel.

Then to manage this fury the tuner equipped the car with a Centerforce clutch and a Getrag IRS with 1000 HP half-shafts, high performance springs and sway bars, 20-inch BBS Black Edition CH-R wheels and Michelin Pilot Sport PS2 tires. So it would have no problem putting all that power down to the ground.

Each SF600R also comes with SpeedFactory exterior badging and graphics, premium leather seats and door panels embossed with SpeedFactory branding , custom floor mats and serial numbered plaque.

Mike Brillanti, President, SpeedFactory Cars stated “This car offers supercharged power in a normally-aspirated, 6spd manual package. It’s a true enthusiast’s car and it enables us to widen the appeal of SpeedFactory products to now include a 600HP vehicle for those enthusiasts who prefer a ‘normally-aspirated’ powerplant. We offer the SF600R with either a 5spd automatic or the 6spd manual transmission. “