Most manufacturer test vehicles are pretty beat up and look like they've lived the abused life they oftentimes lead. For Steve McGaughy, driving around in a busted up truck was completely out of the question, so when the McGaughy's Suspension team needed an R&D truck for their new coilover strut product, Steve went out and purchased a well taken care of '10 GMC Sierra. With the new 4/7 drop kit installed, Steve upgraded the looks by way of a full vinyl wrap, T-Rex grille, and custom HID headlights. Don't make the mistake of thinking this test mule is just for show however. Steve proved to all of us that he stands behind his suspension products, and absolutely flogged the GMC all day long. Getting traction during launch proved difficult, but with a Third Place finish in the road course, Steve's Sierra validated the new line of lowering components. More experience behind the wheel going fast will pay dividends and his wife, Michelle is already talking about getting her project truck ready for next year's THROWDOWN.

Year/Make/Model:
2010 GMC Sierra

Owner and City/State:
Steve McGaughy • Fresno, California


Engine
Type: 5.3L 327ci V-8
Heads: West Coast Cylinder Heads
Cam: Comp Cams 225/235 duration and .590 lift
Induction: Whipple supercharger (10 psi), K&N cold-air intake, LS7 90mm throttle-body
Exhaust: American Racing Headers 1⅞-inch long-tube headers, custom 2½-inch stainless exhaust
Engine Management: Factory ECM tuned by Whipple
Output: 700 hp and 580 lb-ft
Built by: Whipple Superchargers


Drivetrain
Transmission: Jim’s Transmission 4L65E
Rearend: Narrowed 10-bolt with 4.10 gears


Chassis
Front suspension: McGaughy’s Suspension 2-inch drop spindles, 2-inch coilover strut
Rear suspension: McGaughy’s Suspension 7-inch flip kit with C-notch, McGaughy’s shocks
Brakes: Wilwood 16-inch rotors with six-piston calipers (F) and 14-inch rotors (R), braided stainless steel lines


Wheels & Tires
Wheels: Intro Vistas 20x8 (F) and 20x10 (R)
Tires: Nitto NT05 275/40R20 (F) and 315/35R20 (R)


Road Course: 2:06.45 sec
Quarter-Mile: 13.41 @ 101.43 mph
Speed Stop: 19.82 sec
Slalom: 7.83 sec
Show & Shine: 1st Place


Special Thanks: Whipple Supercharges, T-Rex, Intro Wheels, Nitto Tires, Hellwig, Classic Soft Trim, Saints Motorsports, Wilwood, SnugTop, Street Scene