Coilovers for (Almost) Everyone

If you have a GM muscle car or pickup, chances are good QA1 has a Pro-Coil, MOD Series, or Proma-Star Coilover Conversion Kit for it. The bolt-on kits replace your factory shocks with a ride height-adjustable coilover system to improve handling and ride quality. You can choose single-adjustable (compression) or double-adjustable (compression and rebound) shocks and coil spring ratings to dial-in handling to a T. QA1 even has Mustang II coilover conversions for street rods and kits for Ford Mustangs from 1965 through 2004.

Stronger Axle Shafts Can Handle More Power

When it’s time to replace the axle shafts in your vehicle, take the opportunity to step up a couple notches and get quality shafts like those from Yukon Gear and Axle. They make direct-fit one-piece axles in 1541H alloy steel (25% stronger than stock axles) and 4340 chromoly (50% stronger than stock axles) that can handle more power and bigger tires without a whimper. If you need cut-to-fit shafts for a custom axle setup, Yukon Gear makes those for many popular axle types.

Track Day Suspension & Shock Tuning Tips from the Chassis Experts at QA1

Whether you’re taking your Pro Touring car to the autocross for the first time or thrashing your dedicated track rig, you know there’s always room to get faster. And a little bit of suspension tuning can go a long way when you’re trying to find more speed. While there’s a lot that goes into the handling of your car—from geometry and spring rates and to weight splits and sway bars—shock tuning is a quick and easy way to make adjustments that improve performance. Continue reading tuning tips from Summit Racing.