{"product_id":"flowmaster-2-5in-ind-outd-80-series-muffler","title":"Flowmaster 2.5in.IN(D)\/OUT(D) 80 Series Muffler","description":"The 80 series is a cross-flow design for applications where the muffler is mounted transversely behind the rear end. Each end of the muffler has an inlet and outlet.  Delivering an aggressive muscle car sound both inside and outside the vehicle, this is an excellent replacement for Camaros \u0026amp; Firebirds with transverse mufflers. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.\n80 Series Crossflow  - 2.50 Dual In \/ 2.50 Dual Out - Aggressive Sound\nFits 1967 to 1974 Chevrolet Camaro and Pontiac Firebird.\n\u003cul\u003e\n  \u003cli\u003eAggressive Sound Exterior Exhaust Tone\u003c\/li\u003e\n  \u003cli\u003eThe original two chamber design\u003c\/li\u003e\n  \u003cli\u003eNoticeable interior resonance\u003c\/li\u003e\n  \u003cli\u003eCross Flow Applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Flowmaster 80 Series Crossflow Muffler is designed for performance applications that use a transverse-mounted muffler behind the rear axle. With dual 2.5-inch inlets and dual 2.5-inch outlets, this cross-flow configuration provides an aggressive muscle car exhaust tone inside and outside the vehicle. It is an excellent replacement muffler for select Chevrolet Camaro and Pontiac Firebird applications equipped with transverse exhaust systems.\u003cbr\u003eConstructed from durable 16-gauge aluminized steel, the Flowmaster 42582 is fully MIG welded to support long-term strength and reliable performance. Its original two-chamber design delivers a distinctive exterior exhaust note with noticeable interior resonance, making it well suited for drivers who want a more pronounced sound from a classic performance vehicle. The inlet and outlet arrangement is configured for crossflow exhaust layouts and should be matched to the vehicle’s existing exhaust routing before installation.\u003cbr\u003eThis Flowmaster 80 Series muffler fits select 1967 through 1974 Chevrolet Camaro and Pontiac Firebird applications, as well as listed 1975 through 1981 Pontiac Firebird applications. Verify the vehicle year, exhaust configuration, connection locations, and available clearance before ordering. Professional installation is recommended to ensure proper alignment, secure welding or clamping, and leak-free operation. This product is intended for automotive exhaust applications and may be subject to applicable emissions regulations.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eAggressive exterior exhaust tone\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eOriginal two-chamber Flowmaster design\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eNoticeable interior resonance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCrossflow configuration for transverse muffler applications\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDual 2.5-inch inlet and dual 2.5-inch outlet configuration\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eConstructed from 16-gauge aluminized steel\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eFully MIG welded for enhanced durability\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eFits select Chevrolet Camaro and Pontiac Firebird applications\u003c\/li\u003e\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\nBuick Regal GNX 1987\u003cbr\u003e\nBuick Regal Grand National 1985\u003cbr\u003e\nBuick Regal Grand National 1986\u003cbr\u003e\nBuick Regal Grand National 1987\u003cbr\u003e\nChevrolet Camaro Base 1969\u003cbr\u003e\nChevrolet Camaro Base 1970\u003cbr\u003e\nChevrolet Camaro Base 1971\u003cbr\u003e\nChevrolet Camaro Base 1972\u003cbr\u003e\nChevrolet Camaro Base 1973\u003cbr\u003e\nChevrolet Camaro Base 1974\u003cbr\u003e\nChevrolet Camaro Base 1975\u003cbr\u003e\nChevrolet Camaro Base 1976\u003cbr\u003e\nChevrolet Camaro Base 1977\u003cbr\u003e\nChevrolet Camaro Base 1978\u003cbr\u003e\nChevrolet Camaro Base 1979\u003cbr\u003e\nChevrolet Camaro Base 1980\u003cbr\u003e\nChevrolet Camaro Berlinetta 1979\u003cbr\u003e\nChevrolet Camaro Berlinetta 1980\u003cbr\u003e\nChevrolet Camaro Berlinetta 1981\u003cbr\u003e\nChevrolet Camaro LT 1973\u003cbr\u003e\nChevrolet Camaro LT 1974\u003cbr\u003e\nChevrolet Camaro LT 1975\u003cbr\u003e\nChevrolet Camaro LT 1976\u003cbr\u003e\nChevrolet Camaro LT 1977\u003cbr\u003e\nChevrolet Camaro LT 1978\u003cbr\u003e\nChevrolet Camaro LT Rally Sport 1976\u003cbr\u003e\nChevrolet Camaro LT Rally Sport 1977\u003cbr\u003e\nChevrolet Camaro LT Rally Sport 1978\u003cbr\u003e\nChevrolet Camaro Rally Sport 1976\u003cbr\u003e\nChevrolet Camaro Rally Sport 1977\u003cbr\u003e\nChevrolet Camaro Rally Sport 1978\u003cbr\u003e\nChevrolet Camaro Rally Sport 1979\u003cbr\u003e\nChevrolet Camaro Rally Sport 1980\u003cbr\u003e\nChevrolet Camaro RS 1967\u003cbr\u003e\nChevrolet Camaro RS 1969\u003cbr\u003e\nChevrolet Camaro RS 1970\u003cbr\u003e\nChevrolet Camaro RS 1971\u003cbr\u003e\nChevrolet Camaro RS 1972\u003cbr\u003e\nChevrolet Camaro RS 1973\u003cbr\u003e\nChevrolet Camaro RS 1975\u003cbr\u003e\nChevrolet Camaro Sport 1981\u003cbr\u003e\nChevrolet Camaro SS 1967\u003cbr\u003e\nChevrolet Camaro SS 1968\u003cbr\u003e\nChevrolet Camaro SS 1969\u003cbr\u003e\nChevrolet Camaro SS 1970\u003cbr\u003e\nChevrolet Camaro SS 1971\u003cbr\u003e\nChevrolet Camaro SS 1972\u003cbr\u003e\nChevrolet Camaro Z28 1970\u003cbr\u003e\nChevrolet Camaro Z28 1971\u003cbr\u003e\nChevrolet Camaro Z28 1972\u003cbr\u003e\nChevrolet Camaro Z28 1973\u003cbr\u003e\nChevrolet Camaro Z28 1974\u003cbr\u003e\nChevrolet Camaro Z28 1977\u003cbr\u003e\nChevrolet Camaro Z28 1978\u003cbr\u003e\nChevrolet Camaro Z28 1979\u003cbr\u003e\nChevrolet Camaro Z28 1980\u003cbr\u003e\nChevrolet Camaro Z28 1981\u003cbr\u003e\nChevrolet Chevy II Nova 1968\u003cbr\u003e\nChevrolet Nova Base 1969\u003cbr\u003e\nChevrolet Nova Base 1970\u003cbr\u003e\nChevrolet Nova Base 1971\u003cbr\u003e\nChevrolet Nova Base 1972\u003cbr\u003e\nChevrolet Nova Base 1973\u003cbr\u003e\nChevrolet Nova Base 1974\u003cbr\u003e\nChevrolet Nova Custom 1973\u003cbr\u003e\nChevrolet Nova Custom 1974\u003cbr\u003e\nPontiac Firebird 326 1967\u003cbr\u003e\nPontiac Firebird 350 1968\u003cbr\u003e\nPontiac Firebird 350 1969\u003cbr\u003e\nPontiac Firebird 350 HO 1969\u003cbr\u003e\nPontiac Firebird 400 1967\u003cbr\u003e\nPontiac Firebird 400 1968\u003cbr\u003e\nPontiac Firebird 400 1969\u003cbr\u003e\nPontiac Firebird Base 1967\u003cbr\u003e\nPontiac Firebird Base 1968\u003cbr\u003e\nPontiac Firebird Base 1969\u003cbr\u003e\nPontiac Firebird Base 1970\u003cbr\u003e\nPontiac Firebird Base 1971\u003cbr\u003e\nPontiac Firebird Base 1972\u003cbr\u003e\nPontiac Firebird Base 1973\u003cbr\u003e\nPontiac Firebird Base 1974\u003cbr\u003e\nPontiac Firebird Base 1975\u003cbr\u003e\nPontiac Firebird Base 1976\u003cbr\u003e\nPontiac Firebird Base 1977\u003cbr\u003e\nPontiac Firebird Base 1978\u003cbr\u003e\nPontiac Firebird Base 1979\u003cbr\u003e\nPontiac Firebird Base 1980\u003cbr\u003e\nPontiac Firebird Base 1981\u003cbr\u003e\nPontiac Firebird Esprit 1970\u003cbr\u003e\nPontiac Firebird Esprit 1971\u003cbr\u003e\nPontiac Firebird Esprit 1972\u003cbr\u003e\nPontiac Firebird Esprit 1973\u003cbr\u003e\nPontiac Firebird Esprit 1974\u003cbr\u003e\nPontiac Firebird Esprit 1975\u003cbr\u003e\nPontiac Firebird Esprit 1976\u003cbr\u003e\nPontiac Firebird Esprit 1977\u003cbr\u003e\nPontiac Firebird Esprit 1978\u003cbr\u003e\nPontiac Firebird Esprit 1979\u003cbr\u003e\nPontiac Firebird Esprit 1980\u003cbr\u003e\nPontiac Firebird Esprit 1981\u003cbr\u003e\nPontiac Firebird Formula 1970\u003cbr\u003e\nPontiac Firebird Formula 1971\u003cbr\u003e\nPontiac Firebird Formula 1972\u003cbr\u003e\nPontiac Firebird Formula 1973\u003cbr\u003e\nPontiac Firebird Formula 1974\u003cbr\u003e\nPontiac Firebird Formula 1975\u003cbr\u003e\nPontiac Firebird Formula 1976\u003cbr\u003e\nPontiac Firebird Formula 1977\u003cbr\u003e\nPontiac Firebird Formula 1978\u003cbr\u003e\nPontiac Firebird Formula 1979\u003cbr\u003e\nPontiac Firebird Formula 1980\u003cbr\u003e\nPontiac Firebird Formula 1981\u003cbr\u003e\nPontiac Firebird HO 1967\u003cbr\u003e\nPontiac Firebird HO 1968\u003cbr\u003e\nPontiac Firebird Sprint 1967\u003cbr\u003e\nPontiac Firebird Sprint 1968\u003cbr\u003e\nPontiac Firebird Sprint 1969\u003cbr\u003e\nPontiac Firebird Trans Am 1969\u003cbr\u003e\nPontiac Firebird Trans Am 1970\u003cbr\u003e\nPontiac Firebird Trans Am 1971\u003cbr\u003e\nPontiac Firebird Trans Am 1972\u003cbr\u003e\nPontiac Firebird Trans Am 1973\u003cbr\u003e\nPontiac Firebird Trans Am 1974\u003cbr\u003e\nPontiac Firebird Trans Am 1975\u003cbr\u003e\nPontiac Firebird Trans Am 1976\u003cbr\u003e\nPontiac Firebird Trans Am 1977\u003cbr\u003e\nPontiac Firebird Trans Am 1978\u003cbr\u003e\nPontiac Firebird Trans Am 1979\u003cbr\u003e\nPontiac Firebird Trans Am 1980\u003cbr\u003e\nPontiac Firebird Trans Am 1981","brand":"Flowmaster","offers":[{"title":"Default Title","offer_id":67590404178236,"sku":"flo42582","price":254.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1865\/9007\/files\/894e714d526c037ffd7812b799659285L.jpg?v=1790570909","url":"https:\/\/necycleshop.com\/products\/flowmaster-2-5in-ind-outd-80-series-muffler","provider":"NE Cycle Shop","version":"1.0","type":"link"}