Friends of Hemmings Motor News, Dan Carlton and Howard Tanner of DeNooyer Performance and Redline Motorsports, keep racking up accolades with their tuned-up fifth generation Camaros.

Most recently, the upstate New York Chevrolet dealer/performance tuner landed one of their cars on the cover of the GM Performance Parts Catalog and were invited by Dr. Jamie Meyer of GM Performance Parts to display the car at the GMPP booth at the Performance Racing Industry show in Orlando, Florida, earlier this month.

This car, dubbed the HTR-SS454, uses GM’s new LSX454 crate engine with fuel injection, headers, a cold air intake and Borla mufflers to make 515hp and 513-lbs.ft. of torque at the rear wheels – the engine is rated at 620hp at the crank. Behind the 454 is a Corvette ZR1 Dual Disc clutch and a Tremec TR6060 six-speed, stirred by an MGW shifter. To keep the car planted, Howard also installed Pfadt coil overs and bushings with Driveline Shop 1,000hp axles.

Keep your eyes on these guys. They’re hungry and after starting from scratch about two years ago, they are aggressively trying to become the country’s leading GM performance dealer/tuner in the tradition of Baldwin Motion or Yenko.

To get your copy of the latest GM Performance Parts Catalog head over to the GMPP web site. It’s free to download or you can order a printed copy from a participating dealer.