★ ENGINEERED FOR SPEED, BUILT FOR PERFORMANCE. ★
Cunningham Customs LLC logoCunningham Customs LLCEngineered for Speed, Built for Performance
Garage
☎ +1 (424) 447-8470

Tip: set My Garage first, then search or Ask Grok — checkout stays with our human team.

BORLA Sportsman XR-1 Shorty 4in In/Out x 12in Muffle product photo
BORLA

Sportsman XR-1 Shorty 4in In/Out x 12in Muffle

SKU: BOR40947
$223.99
We suggest using this on 1974. Always double-check year, make, model, and options on the full product page before you buy.

Secure checkout with Cunningham Customs LLC. Real people handle your order. Create an account to save garage, favorites, and addresses for next time.

Muffler - XR-1 Sportsman - 4 in Center Inlet - 4 in Center Outlet - 12 x 4.25 x 7.88 in Oval Body - 17 in Long - Stainless - Natural - Universal - Each Notes: This part is designed and intended for installation in Ancient (Model Year 1974 or earlier), or Competition, or Racing Vehicles. Competition or Racing Vehicles may be operated exclusively in 1) events organized by recognized bodies with authorizing permits for participating drivers. 2) racing event qualification, and 3) practice associated with events. Installation and operation of this part in a non-Ancient street driven Vehicle, including driving Competition or Racing Vehicles to the racetrack, is likely to be considered illegal Tampering or a Defeat Device

Why builders shop this part at Cunningham Customs LLC

Looking for Sportsman XR-1 Shorty 4in In/Out x 12in Muffle (SKU BOR40947)? Cunningham Customs LLC stocks BORLA performance hardware for serious builds — street, strip, dirt late model, sprint, drag, and 4x4. Muffler - XR-1 Sportsman - 4 in Center Inlet - 4 in Center Outlet - 12 x 4.25 x 7.88 in Oval Body - 17 in Long -... Fitment notes from listing research: We suggest using this on 1974. Always double-check year, make, model, and options on the full product page before you buy. Shop dirt late model with Grok AI search and fitment coaching on every product page. Compare options, confirm applications, then check out securely — real people at Cunningham Customs handle your order, payment, and shipping.

Shop all parts · Search the catalog · Build guides · Camshaft help · More BORLA

Questions about fitment or install? Ask Grok anytime, or Call Us at +1 (424) 447-8470. We're here to get the right part on your build.

Comments & builder notes

Share fitment tips, install notes, or questions. Customers, the shop, and Grok can all chime in. New comments notify the Cunningham Customs team for review.

Prefer saved profile? Log in or create an account.

Call Us+1 (424) 447-8470