Our Work in Action

Every build that leaves Sheffer Performance is proven on the dyno before it goes back on the road. Explore recent Milwaukee Eight and Twin Cam combinations and the results they produced.

Real Bikes. Real Dyno Numbers. Real Results.

From daily-rider upgrades to complete big-bore packages, each card pairs the motorcycle and build specification with the result measured in the shop.

Sheffer 396 Performance Build

Purpose-built Harley performance with the complete combination brought together in the shop.

SE 135 Piston and Cylinder Kit

CR-485 cam and KW two-into-one exhaust combination.

2017 FLHX - 107 Stage 2

CR-480 cam with KW Outlaw two-into-one exhaust.

128-inch Tractor Package

JWR Plus One heads with nearly 140 horsepower and strong low-end torque.

2018 Heritage - 128-inch Super Sport

141 horsepower and 150 torque on bone-stock heads.

2024 FLHX - 128-inch L88 Package

Late-model touring-platform performance combination.

2017 CVO Ultra - 128-inch Super Sport

Stock heads and CR-485 cam producing 140 horsepower and 140 torque.

Milwaukee Eight Custom Build

Parts selection and calibration matched to the rider and motorcycle.

Featured Focus:

128-inch Performance

These larger-displacement combinations show how the right cam, heads, exhaust, and final calibration work together.

Cam and Head Combination

Engine work planned around the desired torque curve and riding style.

Complete Engine Package

Cam, heads, airflow, and final calibration working as one combination.

In-House Dyno Calibration

Final fuel and timing calibration performed under real load.

Built for the Street

Usable power, throttle response, and documented final results.

Your Harley Could Be Next.

Call 812-401-TUNE (8863) or request an appointment to discuss the result you want from your motorcycle.