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These KellTrac S550 Mustang Mustang industry-first Adjustable Drag Struts for the S550 Mustang were designed, tested and revised for over 1-year! We have taken what we have learned since 2014 and implemented it all into this strut, making it the...
his KellTrac S550 Mustang IRS Subframe "Posi-Loc" System for the S550 Mustang positively locates the rear IRS Subframe within the chassis. By filling the voids within the factory bushings and putting positive pressure on the factory bushing stops, this kit eliminates the...
Description !!!NOW SHIPPING!!! DUE TO SUPPLY ISSUES, ALL ORDERS ARE AVERAGING 3-4 LEAD TIMES. These KellTrac S550 Mustang Mustang industry-first Adjustable Drag Coilovers for the S550 Mustang were designed, tested and revised for over 1-year! We have taken what we...
Replace the soft lower bushings on your S550 Mustang Viking Performance shocks with this KellTrac spherical bearing upgrade kit. This kit is made from the highest quality components available and comes with everything you need. -(2) Custom Stainless Steel Spherical...
Avoid headaches and replace those pesky OE or aftermarket M14 sized differential mounting bolts with this KellTrac Big Bertha Diff Bolt kit. This kit includes everything you need to upgrade your S550's Diff to the largest and strongest bolt kit...