Steeda S550 Ford Mustang ‘Street’ IRS “Stop The Hop” Pack

Steeda S550 Mustang 'Street' IRS "Stop The Hop" Pack

Steeda Street Stop The Hop reduces rear-wheel hop and excessive IRS subframe movement. Intended for road cars and track days, its polyurethane-bushed vertical links provide more compliance than the drag-oriented Ultimate package’s Delrin links.

Contents

• Both versions include subframe bushing supports 555-4437, alignment sleeves 555-4438, polyurethane vertical links 555-4129 and adjustable toe links 555-4120.
• Coupe package 555-2129S also includes chrome-moly subframe braces 555-5754.
• Convertible package 555-2129S-VERT omits them because of the factory convertible rear brace.

Supports and sleeves stabilise subframe position. Machined steel vertical-link sleeves reduce deflection, while toe links adjust on the car. Steeda states no added noise or vibration.

Related vehicles

• Mustang S550 GT and EcoBoost 2015–2023, selecting coupe or convertible

Mach 1/GT350 subframes and GT500 vertical-link requirements differ, so this standard package should not be selected for them unchanged.