South Bay Moto Performance is proud to be the premier distributor for
Two Stroke Performance (TSP) and Four Stroke Performance (FSP) products sold in the US and Mexico.
Specializing in off road motorcycle, performance engine mods and parts.
We only carry the highest quality parts designed to enhance performance and reliability of your two stroke and four stroke off road motorcycle:
- Industry leading tunes for 2-strokes (TPI & TBI) and 4-stroke ECUs
- TSP / FSP “ECU Reflash Module” (ERM) tuning & diagnostic device
- CNC billet cylinder heads for all make and models 2-strokes
- TSP top end rebuild kits for all make and modes 2-strokes
- Keihin carbs, CDI ignitions, radiator fan kits, and more!
Team SBMP has 35+ years of tuning, riding and racing off road motorcycles. Give us a call and let us help you create your dream two-stroke or four-stroke motor power plant!
Top performance mods for Off Road Single-Track Hard Enduro MX GNCC Hare Scramble Sprint Enduro Trail Riding Desert Racing
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Verified owner
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Verified ownerSuper easy to install, no more worrying if leaking pump is gonna fail
Verified ownerTrack and Trail Tested Performance Upgrades!
Dirt Bike Test Bangs On The TSP TBI Power Kit
- And They Like It!
We’ve got something you don’t want to miss: Dirt Bike Test recently put the Two‑Stroke Performance TBI Power Kit through its paces, and the results are nothing short of impressive. From smoother, linear power delivery to rideability that truly stands out – even across varied terrain – they break down how the kit transforms your engine into a powerhouse you can actually control. Check out their full review here, then explore our TBI Power Kit options – your link to all the gear you need.
Performance and reliability for all skill levels!
We are dedicated offroad riders. We understand the importance of not only going fast, but also keeping our motorcycles running in top condition. Nobody wants to spend a weekend at the trailhead wrenching on their equipment. Let us help you select the perfect parts to keep your two stroke running at peak performance!