eBay Finds: Low-Mile Gen 3 Coyote Swap, Roush & Stainless Works Exhaust, Roush Coilovers
Disclosure: This post contains eBay links. As an eBay Partner Network participant, we may earn a commission from qualifying purchases at no extra cost to you. We only highlight 2011+ Coyote Mustang finds (S197 late Coyote, S550, S650) from individual sellers – not high-volume dealer lots.
Catch-up for today’s eBay Finds slot (due ~2:04 PM MT): here are six current individual-seller listings worth a look for Coyote owners – a low-mile Gen 3 + 10R80 pull, Roush and Stainless Works exhaust take-offs, a stock 2018-2023 cat-back for the garage shelf, Flowmaster American Thunder, and Roush coilovers off a 2016 GT.
11k-Mile 2018 Gen 3 Coyote + 10R80 Drivetrain Pull
If you are planning a Coyote swap and want Gen 3 power with the 10-speed already mated, this is the listing to open first. Seller bumcpa has a complete 2018 Mustang GT 5.0 / 10R80 drivetrain pull advertised at about 11,000 miles – engine, auto, harness pieces, and the usual swap-critical bits laid out on the pallet. Low-mile Gen 3 + 10R80 packages from private sellers do not sit around.
Roush Cat-Back with X-Pipe (2015-2017 GT)
Take-off Roush 422092 cat-back with X-pipe for the 2015-2017 S550 GT from seller ausjac_728 (Grass Valley, CA). Roush’s system is a known quantity on Coyotes – deeper tone than stock without going full drone-machine – and buying used from an individual beats list price on a brand-new kit.
Stainless Works Retro Chambered Cat-Back (2015-2017 GT)
Seller thetrueenthusiast in St. Louis has a Stainless Works 3-inch Retro Chambered cat-back for 2015-2017 Mustang GTs. Chambered Stainless Works systems are a favorite when you want aggressive sound without a muffler-delete racket. Solid private-party take-off if your S550 still wears the factory pipes.
OEM Non-Active Cat-Back (2018-2023 GT)
Stepping up to a louder aftermarket system? Grab a clean factory spare. This 2018-2023 Mustang GT OEM non-Active Exhaust cat-back from a low-feedback private seller is the quiet stocker you want in the garage for HOA days, inspections, or a resale-friendly swap-back.
Flowmaster American Thunder Cat-Back (2015-2017 GT)
Classic Flowmaster tone on a budget: seller garnel-77 (Florence, MS) lists a Flowmaster American Thunder cat-back for 2015-2017 Mustang GT 5.0. American Thunder is the old-school rumble a lot of S550 owners still want – and private-party pricing usually undercuts new kits by a wide margin.
Roush Coilovers Off a 2016 GT Coupe
Suspension take-off from seller scrap1auto in Dacula, GA: a Roush front/rear coilover set pulled from a 2016 Mustang GT coupe. If your S550 is still on stock springs and you want a complete Roush-height setup without buying new, this is the kind of individual listing worth measuring twice and messaging once.
How we pick these
Scope stays tight: 2011+ Coyote Mustangs only (late S197 Coyote, S550, S650). We skip Fox, SN95, New Edge, and non-Coyote motors. Listings are used or NIB from individuals with modest feedback – high-volume dealer stores get filtered out. Always message the seller, confirm miles/fitment, and check shipping before you buy. For more Coyote shopping context, see today’s BaT Finds and our axle-back vs cat-back guide.
