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Complete S550 Mustang Irs Subframe "posi-loc" System Bundle [rMf7sySz]

$39.99 $127.99 -69%

S550 Mustang IRS Subframe Posi-Loc System Elevate the performance of your S550 Mustang with the KellTrac IRS Subframe "Posi-Loc" System. This innovative kit is designed to positively locate the rear IRS Subframe within the chassis, ensuring optimal p

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Complete S550 Mustang Irs Subframe "posi-loc" System Bundle [rMf7sySz]

S550 Mustang IRS Subframe Posi-Loc System

Elevate the performance of your S550 Mustang with the KellTrac IRS Subframe "Posi-Loc" System. This innovative kit is designed to positively locate the rear IRS Subframe within the chassis, ensuring optimal performance in various driving scenarios. The Posi-Loc system eliminates the deflection found in the stock assembly, providing a more stable and responsive driving experience. With its lightweight CNC machined design and 6061-T6 billet aluminum construction, this system is not only durable but also offers significant weight savings.

Advanced Design and Specifications

The KellTrac Posi-Loc System features a unique rear lower design that replaces the factory bushing stop plate, ensuring a precision fitment for maximized performance. This design increases the zero noise vibration harshness, providing a smooth and quiet ride. The kit is crafted from high-quality anodized black 6061-T6 billet aluminum, offering both strength and aesthetics. The precision engineering of this system guarantees a perfect alignment of the subframe to the chassis, enhancing handling, traction, and overall driving feel.

Practical Benefits and Applications

Whether you're street cruising, drag racing, road racing, or auto-crossing, the KellTrac Posi-Loc System is a game-changer. It reduces wheel-hop, centers the subframe to the chassis, and eliminates the need for centering sleeves. This system improves handling, traction, and feel, helping to prevent damage to bushings and driveline parts. It also assists in reducing driveline vibrations and minimizes pinion angle change under heavy WOT loads. Experience the difference with the KellTrac Posi-Loc System, and take your S550 Mustang to new performance heights.

What Our Customers Say

January 19, 2026

Absolutely no complaints!

The power and speed are impressive.

- Brandon J..

January 19, 2026

Absolutely no complaints!

This is a very well-documented and easy-to-service item.

- Easy_Service.

January 19, 2026

Absolutely no complaints!

It just works. No fuss, no hassle.

- Joan Murphy.

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