Official 2025-10-07 Differential Rebuild Upgrade Kit

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Dear Rush Community,

With our continued effort to improve longevity, performance, and reliability of the SR, we are pleased to announce a few new features. Please review the following Technical Service Bulletin (TSB) regarding the Differential Rebuild Upgrade Kit for more information.

The kit does not improve performance but greatly improves reliability of the differential.

Should you have any questions on ordering the kits or getting assistance installing them on your SR, please contact your preferred RAW dealer.

Rush Only SCCA Sanctioned Comp School Dec 2-4 @ MSR Houston.


Hey all, if there is anyone needing to get their competition license, there will be a Rush only comp school at MSR Houston, December 2-4 (That's Tuesday-Thursday). You will leave this event with a full competition license, no future provisional periods or races.

Rush of Central Texas will be there to support drivers in the event that repairs are needed in order to keep the cars running, so nobody has to go home early and waste their money in the event of a mechanical issue.

The price is $2350 with your own car. I cannot speak with certainty, but if you do not have a Rush for the event, Rush of Central Texas may have rentals available.

The school requires 6 drivers, and we currently have 5.
If you or anyone you know needs a comp license, sign up, or contact ROCT or MSR Houston. Having an SCCA or NASA license will allow you to race at almost any grassroots motorsport event in the country.
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Official 2025-09-22 6 Gallon Fuel Cell Installation Procedures

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With our continued effort to improve longevity, performance, and reliability of the SR, we are pleased to announce the following Technical Service Bulletin (TSB) regarding the 6 Gallon Fuel Cell.

The 6-Gallon Fuel Cell sits behind the tank and is approved for NASA, SCCA, and GridLife competition. It also adds significant reliability to the car, as an all-new fuel pump, regulator, and fuel pressure gauge are now integrated inside the container.


Should you have any questions on ordering the kits or getting assistance installing them on your SR, please contact your preferred RAW dealer.

Official 2025-07-29 Lowered Differential

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Dear Rush Community,


With our continued effort to improve longevity, performance, and reliability of the SR, we are pleased to announce a few new features. Please review the following Technical Service Bulletin (TSB) regarding the Lowered Differential for more information.



Not only do these new upgrades bring reliability, they increase the window of drivability! These updates bring higher levels of predictability and balance and help provide an increase in confidence behind the wheel of your Rush SR.

Should you have any questions on ordering the kits or getting assistance installing them on your SR, please contact you preferred RAW dealer.

Official 2025-07-09 Upgraded Outboard CV Joint Hardware

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With our continued effort to improve longevity, performance, and reliability of the SR, we are pleased to announce a few new features. Please review the following Technical Service Bulletin (TSB) regarding the Upgraded Outboard CV Joint Hardware for more information.

Please install this hardware on your car immediately to avoid any potential issues with torque on outboard CV joints.

Should you have any questions on ordering the kits or getting assistance installing them on your SR, please contact your preferred RAW dealer.

Official 2025-07-23 Wide Rear Camber Plates and Shims

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Please review the following Technical Service Bulletin (TSB) regarding the Wide Rear Camber Plates and Shims.

These new Camber Plates (previously titled "SRX Camber Plates") will be required in all 2026+ competition.

Should you have any questions on ordering the kits or getting assistance installing them on your SR, please contact your preferred RAW dealer.

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