Increase coil capacity by 30%


Get an additional 30% on

your factory coils.

Find the right size Coil SumoSprings for your vehicle.

Measure the gap between in the middle of the coil. Enter the measurements below for the right fit. Take the measurement with the vehicle as it sits. You do not need to raise it. Ensure that each side of the vehicle is within 1/4" (0.25") measurement of the other.

Download the printable Coil Gap Tool.

Coil Suspension before and after Coil SumoSprings

"Thank you guys for these unique products. I couldn't imagine being able to fit a 33.3" without any lift/level. However, these Coil SumoSprings are far much better than any level in the market. The ride became different, with more stability at the front. They have eliminated the vibration on gravel terrain without deflating the tires."

- Project Conan @projectconan on Instagram

Something for everyone.

If your vehicle has coil suspension, we have options.

Coil SumoSprings are made from the same material as our other SumoSprings products – a micro-cellular polyurethane that decreases vibration, stabilizes sway, and tightens up your existing factory coils. This upgrade adds up to 30% additional capacity to your coils, creating a cushion effect and stopping unwanted dip and roll.