Sheffer Performance

Sheffer Performance Get your Harley on the schedule for the SPHD air conditioning service. "We move the heat from under Harley Davidson performance and dyno tuning.
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154” of 93 octane killer! SP’s newest member of the family of build packages. This one features JWR-610 Drag Cam and JWR...
05/23/2026

154” of 93 octane killer! SP’s newest member of the family of build packages.

This one features JWR-610 Drag Cam and JWR heads.

Nearly cracked that 190 horsepower number, and ride it anywhere. 💪

Sheffer Performance! Where even the spider’s are gear heads!!
05/22/2026

Sheffer Performance!

Where even the spider’s are gear heads!!

05/14/2026
05/14/2026

Trike’s like that Tractor Torque also!
The 128” SP Tractor package counting them off.
With my favorite bolt in cam, the CR-480OG!!

Another day @ Sheffer Performance. We make them HOG’s sing!! Even the occasional three wheeler!
05/13/2026

Another day @ Sheffer Performance.
We make them HOG’s sing!! Even the occasional three wheeler!

05/12/2026

Warming up the SP 154” 93 Octane package.
Pump 93 octane, True Street engine.
JWR 610 Drag cam, Burns and the rest of the goodies.

05/12/2026

Out for an afternoon stroll.

05/09/2026

Just completed 2025 CVO with our 135” Super Sport package.
11:1 compression, SE 64mm throttle body, ported stock intake manifold, By Jeremy Williamson, Cycle Rama 557 cam and bone stock heads.
Will be on the dyno early next week.
This HPI pipe sounds great! Video doesn’t do it justice. It sounds wicked!! 💪💪

01/04/2026

PSA: If you’re bringing a bike in for a build or just for tuning, DO NOT have any kind of fuel treatment or octane booster in your fuel tank!

This can ruin our O2 sensors and cause tuning issues.

TIA.

Merry Christmas to all of our friends, family and customers.
12/25/2025

Merry Christmas to all of our friends, family and customers.

Address

40 W Indiana Street
Evansville, IN
47710

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

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