Steeda S550 Mustang ‘Stop the Hop’ Starter Kit (2015-2020) 555-4455

Steeda S550 Mustang ‘Stop the Hop’ Starter Kit (2015–2020)

5 Star Tuning is proud to offer the best Starter Kits on the market!

Our sales representatives receive calls all the time from enthusiasts who want to eliminate wheel hop while staying within a strict budget. The Stop the Hop Starter Kit comes in handy here. Our engineering team collaborated to develop the best three parts for eliminating unwanted wheel hop in the new S550/S650 Mustang. A kit that provides the fundamental building blocks for maximum traction and suspension compliance. As previously stated, the factory IRS subframe (commonly referred to as a cradle) mounts to the Mustang chassis via four mounting locations and four soft rubber bushings with plenty of voids, even in the bolt holes. The kit we created addresses these and other concerns.

Which “Stop the Hop” Kit is for you?

First is our alignment dowel kit. This fills the factory bolt-hole voids with CNC-machined delrin inserts that will square up the rear subframe to the chassis. By filling these voids, we are also limiting the side-to-side and front-to-back movement of the subframe that is present under hard acceleration and braking.

Second is our tried and true IRS Subframe Bushing Support System. This 8-piece kit was the first of its kind in the performance aftermarket and so innovative and popular that we patented its design! Made in-house from billet 6061 aluminum and featuring stainless steel hardware, this kit fills all the factory voids in the IRS subframe mounting locations. Its job is to prevent up-and-down movements of the subframe.

The third and final piece of this kit is the most vital support brace for the S550/S650 IRS on the market!! Made in-house from chrome moly steel, this brace supports the factory subframe by directly tying it into the chassis at key mounting locations. Using factory mounting locations on the factory frame, this 5-point brace supports the front factory mount and the lower control arm mount as well. A simple bolt-in design, this brace ties the subframe to the chassis in the best possible way.

The best part about this kit is the price. These three parts were the first of their kind for the S550 Mustang, and nothing will prevent unwanted subframe movement or wheel hop better than this kit.

NOTE: Steeda IRS Subframe support braces will not fit convertible

Kit Includes:

• 555-5754 – Steeda IRS Subframe Support Braces
• 555-4438 – Steeda IRS Subframe Alignment Kit
• 555-4437 – Steeda IRS Subframe Bushing Support System

Product Benefits:

• Eliminate wheel hop while not increasing NVH
• Squares subframe to the chassis
• No permanent modifications
• Eliminate subframe movement
• Simple install

SKU: 555-4455