KW Coilover Kit V3 Ford Mustang Cobra - only for models w/ independent – Hobby Shop Garage
IRS, Independent Rear Suspension Unit, Control Freak By Blue Moon Motorsports, 600 RWHP Unit, bolt-in system w/ minor welding reqd, 17 inch O.D. wheels reqd - #C-5389-1A - National Parts Depot
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Looking for S550 Mustang IRS Swap Info| Grassroots Motorsports forum