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Flowmaster 80 Series Chambered Muffler for Chevrolet, Buick and Pontiac

Part # 42582

  • Aggressive Sound Exterior Exhaust Tone
  • Noticeable interior resonance
  • The original two chamber design
  • Cross Flow Applications

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 & Firebirds with transverse mufflers. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.

Specifications

Body Height4.00 in
Body Length18.00 in
Body MaterialAluminized Steel
Body Width9.75 in
Clamps IncludedNo
ColorBlack
Exhaust Tip Quantity0
FinishHigh-Temperature Paint
FitmentUniversal
Grade TypePerformance
Hanger IncludedNo
Heat Shield AttachedNo
Inlet ConnectionSlip-Fit
Inlet Diameter2.50 in
Inlet Inside Diameter2.50 in
Inlet LocationDual
Inlet Outside Diameter2.63 in
Inlet Quantity2
Inlet TypeWeld-On
Mount TypeUses New Hangers (Not Included)
Muffler Series80 Series Crossflow
Muffler TypeChambered (Transverse)
Outlet ConnectionSlip-Fit
Outlet Inside Diameter2.50 in
Outlet LocationDual
Outlet Outside Diameter2.63 in
Outlet Quantity2
UPC / GTIN00700042014750
WarrantyManufacturer's Limited 3 Year Warranty

Fits these vehicles

YearMakeModelSubmodelEngineNote
1985 - 1986BuickRegalGrand National3.8L V62.50 Inlet 2.50 Outlet
1987BuickRegalGNX, Grand National3.8L V62.50 Inlet 2.50 Outlet
1967ChevroletCamaroRS, SS5.7L V82.50 Inlet 2.50 Outlet
1968ChevroletCamaroSS5.7L V82.50 Inlet 2.50 Outlet
1969ChevroletCamaroBase, RS, SS5.7L V82.50 Inlet 2.50 Outlet
1970 - 1972ChevroletCamaroBase, RS, SS, Z285.7L V82.50 Inlet 2.50 Outlet
1973ChevroletCamaroBase, LT, RS, Z285.7L V82.50 Inlet 2.50 Outlet
1974ChevroletCamaroBase, LT, Z285.7L V82.50 Inlet 2.50 Outlet
1975ChevroletCamaroBase, LT, RS5.7L V82.50 Inlet 2.50 Outlet
1976ChevroletCamaroBase, LT, LT Rally Sport, Rally Sport5.7L V82.50 Inlet 2.50 Outlet
1977 - 1978ChevroletCamaroBase, LT, LT Rally Sport, Rally Sport, Z285.7L V82.50 Inlet 2.50 Outlet
1979 - 1980ChevroletCamaroBase, Berlinetta, Rally Sport, Z285.7L V82.50 Inlet 2.50 Outlet
1981ChevroletCamaroBerlinetta, Sport, Z285.7L V82.50 Inlet 2.50 Outlet
1968ChevroletChevy IINova5.3L V82.50 Inlet 2.50 Outlet
1969ChevroletNovaBase5.0L V82.50 Inlet 2.50 Outlet
1970ChevroletNovaBase5.0L V8, 6.5L V82.50 Inlet 2.50 Outlet
1971 - 1972ChevroletNovaBase5.0L V82.50 Inlet 2.50 Outlet
1973ChevroletNovaBase, Custom5.0L V82.50 Inlet 2.50 Outlet
1974ChevroletNovaBase, Custom5.7L V82.50 Inlet 2.50 Outlet
1967PontiacFirebird326, 400, Base, HO, Sprint3.8L I6, 5.3L V8, 6.6L V82.50 Inlet 2.50 Outlet
1968PontiacFirebird350, 400, Base, HO, Sprint4.1L I6, 5.7L V8, 6.6L V82.50 Inlet 2.50 Outlet
1969PontiacFirebird350, 350 HO, 400, Base, Sprint, Trans Am4.1L I6, 5.7L V8, 6.6L V82.50 Inlet 2.50 Outlet
1970PontiacFirebirdBase, Esprit, Formula, Trans Am4.1L I6, 5.7L V8, 6.6L V82.50 Inlet 2.50 Outlet
1971 - 1976PontiacFirebirdBase, Esprit, Formula, Trans Am4.1L I6, 5.7L V8, 6.6L V8, 7.5L V82.50 Inlet 2.50 Outlet
1977PontiacFirebirdBase, Esprit, Formula, Trans Am3.8L V6, 4.9L V8, 5.0L V8, 5.7L V8, 6.6L V82.50 Inlet 2.50 Outlet
1978PontiacFirebirdBase, Esprit, Formula, Trans Am3.8L V6, 5.0L V8, 5.7L V8, 6.6L V82.50 Inlet 2.50 Outlet
1979PontiacFirebirdBase, Esprit, Formula, Trans Am3.8L V6, 4.9L V8, 5.0L V8, 5.7L V8, 6.6L V82.50 Inlet 2.50 Outlet
1980PontiacFirebirdBase, Esprit, Formula, Trans Am3.8L V6, 4.3L V8, 4.9L V8, 5.0L V82.50 Inlet 2.50 Outlet
1981PontiacFirebirdBase, Esprit, Formula, Trans Am3.8L V6, 4.3L V8, 4.4L V8, 4.9L V8, 5.0L V82.50 Inlet 2.50 Outlet