Hersh Performance and Racing Products

Hersh Performance and Racing Products Hersh Performance and Racing is a provider of high quality products for all makes and models. We sp

Get a hold of Stephen at The RaceLineLLC to secure your spot. Not many left.Will be bringing the mobile dyno out!
07/06/2026

Get a hold of Stephen at The RaceLineLLC to secure your spot. Not many left.

Will be bringing the mobile dyno out!

Graphics are coming along nice. AI is amazing
07/02/2026

Graphics are coming along nice. AI is amazing

Just sharing what I managed to tune out of a completely stock 2025 CBR650R eClutch. The breakup on the high RPMS is due...
06/19/2026

Just sharing what I managed to tune out of a completely stock 2025 CBR650R eClutch. The breakup on the high RPMS is due to the bike being mad about the front tire not rotating. Going to discuss with hardware manufacture about possibly being able to disable the safety features during dyno.

Bike consistently laid down about 80whp on many different runs in 100% stock form.

Tune-only managed to get about 2.3whp additional. Sprint Filter got me up to about 2.6whp. For comparison, this is about 20-25whp out of a modern day N/A car.

Bike definitely a bit more peppy and alive. Nothing to really write home about but all gears definitely feel more torquey.

Ran the graph through AI because I'm terrible at photo editing so ignore the obvious lazy addons

My CS Racing exhaust shows up this week so I will be running the data on that as well.

Most gains came from fueling adjustments. Bike runs fairly rich full throttle. Leaning it out gave the most gains. I found 0 gains from adding spark at WOT. More spark during light throttle gave a bigger effect and more throttle response.

If you are local to me in North Idaho and would like your bike tuned, feel free to reach out.

06/09/2026

We have a complete mobile motorcycle dyno setup now to serve the North Idaho / Spokane / Eastern Washington area.

Will be looking for outlets that want to host dyno shootouts, events, etc

Open for basic dyno runs and will be doing tuning as well

Just came to my Attention that MaxxECU made us a dealer somewhat recentlyPicture for proof. Let us know anything you mi...
04/14/2026

Just came to my Attention that MaxxECU made us a dealer somewhat recently

Picture for proof. Let us know anything you might need

Address

11370 N Government Way
Hayden Lake, ID
83835

Telephone

+12087725379

Website

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