XPR Motorsports

XPR Motorsports MX/SX Performance Services and Parts
Engine rebuilds and modifications
Dirt bike service and repair Located in Southern California.

XPR specializes in performance and engine efficiency. Offering After-market, Performance, and OEM Parts. Services include on-site Dyno tuning, Vortex ECU mapping, porting, and much more. XPR works with amateurs, pros, and race teams.

02/09/2026

Dropping some seats in Yamaha and Honda 250’s!

01/29/2026

First startup with a fresh mod motor.
Tight tolerances, zero compromises. Let’s go.

Fresh batch of YZ 250 / YZ 450 gas cap vent elbows! CNC’d aluminum, zero kink.What color are you running? 🔥
01/20/2026

Fresh batch of YZ 250 / YZ 450 gas cap vent elbows! CNC’d aluminum, zero kink.
What color are you running? 🔥

Fresh KX250F Race motor build for Who is watching A1 this weekend?
01/08/2026

Fresh KX250F Race motor build for
Who is watching A1 this weekend?

New limited edition blue water spout for the 23-26 YZ 450F
12/29/2025

New limited edition blue water spout for the 23-26 YZ 450F

12/22/2025

26 YZ250F motor build done ✅

12/16/2025

Busy time of year getting heads serviced and built for racing. 💪🏼

12/10/2025

The head assembly process.

12/08/2025

Some fresh 26 KX250F’s to build.
vortexecu

12/02/2025

That 2 stroke sound!
Check out the latest Video did 2 stroke Vs 4 stroke!

11/25/2025

Cutting the valve seats to achieve a true 360° seal.
A proper seat cut ensures exact seat width, proper valve contact, & correct airflow transition. Maximum cylinder pressure = horsepower and torque!

11/24/2025

Does a second injector mess with reliability?
Nope, not at all. In fact, it makes the bike run better.
A second injector (with the right ECU/maps) gives you way more power without adding stress to the engine. It basically helps the motor breathe and fuel smarter, not harder.
You get:
🔥 Better bottom and mid pull
🔥 Quicker throttle response
🔥 Cooler, cleaner running
🔥 More overall power
🔥 Same reliability + same maintenance schedule
More power, same dependability. That’s why so many riders add it to their 250’s.

Address

41695 Elm Street #201
Murrieta, CA
92562

Opening Hours

Monday 9am - 6pm
Tuesday 9am - 6pm
Wednesday 9am - 6pm
Thursday 9am - 6pm
Friday 9am - 6pm

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