Built for smooth performance and lasting strength for street cars & weekend warriors!

Engineered for precision, durability, and consistent performance.

Reliable under most extreme conditions!

Full Pull 700hp Civic SI Straight Cut Gears

Strength You Can Count On

Honda Powered Mr2 Racing with Helical Synchro gears at the track.
Same customer with Honda Powered Mr2 after converting to helical dog gears! 700hp+

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Full Catalog

Full Catalog

AWD

AWD

FEATURED PRODUCTS

FEATURED PRODUCTS

REPLACEMENT PARTS

REPLACEMENT PARTS
INSTALLATION DISCLAIMER
Key Guidelines & Disclaimer: Designed for street cars, roll racing, and weekend strip racing with affordability in mind. They are not designed strictly for dedicated drag racing. Power & Abuse Warnings: Exceeding recommended horsepower ratings or abusing the setup can lead to failure. While some users run higher power successfully, it is not recommended for long-term reliability. Professional Installation Required: Installation requires special equipment—including window casing, shim varieties, and input shaft thrust tooling with a dial indicator to set endplay accurately. Tighter Clearances: Because these aftermarket gears are larger than OEM components, internal clearances are much tighter and require precise measurement rather than standard drop-in installation. DIY Risk: Self-installation requires the proper specialized tools; doing it yourself means assuming all risk and liability for any improper assembly.

Nothing reveals how a product actually performs like real-world use—and customer-submitted videos and feedback are absolute gold for product development. They bridge the gap between how we expect something to work and how a real person actually uses it in daily life.

700hp+ Turbo Acura Rsx Utilizing out Straight Cut Synchro Gearset
Dog box gears at the track

Our customers

"Great value for the price."

Boostlee
Boostlee
Testimonial author

"Absolutely love the quality!

Testimonial author

"Extremely sturdy, reliable, and easy to assemble — exactly the setup I needed.

Testimonial author

"The setup process was straightforward, and every component works perfectly. I’m very satisfied with this purchase."

Testimonial author

Frequently Asked Questions

**Key Assembly Guidelines & Warnings**

* **Window Casing Mandate:** Unlike OEM gears, these aftermarket gear sets must **not** be installed blindly. Using a windowed test casing is required to visually verify gear meshing and clearances during mock-up.

* **Specialized Tooling Required:** Assembly demands proper measurement tools, including various shim sizes, a dial indicator with a magnetic base, and an input shaft thrust tool to properly set mainshaft endplay.

* **Installer Expertise:** Professional assembly is strongly recommended due to the precise setup required for tight clearances.

* **DIY Liability:** If attempting a self-installation, ensure you possess or borrow all necessary specialized tools. Doing it yourself means assuming all risk and liability for any improper setup or damage.

Orders are typically processed within 3 to 5 business days from the time your purchase is confirmed. Once your order is packed and ready to go, you’ll receive an email with your shipping confirmation and tracking details, so you can follow your delivery every step of the way.

Yes, international shipping is available. Delivery times and costs vary based on your location and selected shipping method. Please take note that Duties/Vat are not included in the shipping costs.

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