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Vehicle Info NeededFLOWMASTERPART NUMBER: 389-817673
American Thunder Crossmember-Back Exhaust System 1962-1967 Chevy II/Nova
$1,24995
Ships on 09/09/2026
Lowest Price GuaranteeChevy II/Nova
American Thunder Crossmember-Back Exhaust System 1962-1967 Chevy II/Nova 2.5" Tubing 3" Polished SS Tips Dual Out Side Exit Super 44 Series Muffler 409S Stainless Steel
FLOWMASTER MUFFLERS 817673 Features:
Flowmaster's American Thunder crossmember-back exhaust system for the 1962-1967 Chevrolet Chevy II/Nova is perfect for the person looking for an aggressive sound level inside and outside of the car, with all of the performance benefits that you would expect from Flowmaster. This bolt-on Dual Side Exit (Dual Out Side) system features stainless steel Super 44 Series mufflers and dual 2.50" 409S Stainless Steel tailpipes and a welded H-Pipe. Like all Flowmaster systems, the pipes are all mandrel bent to reduce any restrictions and maximize performance. The exhaust system is covered by Flowmaster's Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation.- H-pipe Crossover for Maximum Power and Deep Tone
- Super 44 Series Mufflers for Deep Powerful Sound
- Mandrel-bent 16-gauge Stainless Steel Tubing
- Includes Hangers and Hardware for Installation
- Moderate to Aggressive Exterior Exhaust Tone
- Crossmember-back True Dual Exhaust System
- Does Not Include Header Reducers or Downpipes for Factory Manifolds
- Lifetime Limited Warranty
Part TypeExhaust System
BrandFLOWMASTER
Package Height1.0
Package Width1.0
Package Length1.0
Weight15.0 PG
Muffler Inlet Inside Diameter2.50 in.
Hangers IncludedYes
Main Piping Diameter2.50 in.
Tail Pipe QuantityDual
Inlet TypeWeld-On
Exhaust Tip Material304 Stainless Steel
Catalytic Converter Quantity0
Tip FinishPolished
Muffler Body Length13 in.
Sound LevelAggressive / Moderate
Muffler Body Material409 Stainless Steel
Exhaust Tip CutAngled
Gasket Or Seal IncludedNo
Exhaust Tip IntercooledNo
Pipe ColorSilver
Muffler Quantity2
Muffler Inlet Outside Diameter2.63 in.
Muffler Flanged OutletNo
Tip Quantity2
Exhaust Tip ResonatedNo
Exhaust TypeDual
Catalytic Converter IncludedNo
Heat Shield IncludedNo
Part CategoryPerformance Parts
Exhaust Tip WallSingle Wall
Exhaust Tip Quantity2
Exhaust Tip FinishPolished
Exhaust Tip EdgeRolled Edge
Valve IncludedNo
Muffler TypeChambered
Pipe Material409 Stainless Steel
Muffler Body Width10 in.
Tail Pipe Tapered OutletNo
Muffler Body ShapeOval
Mounting Bracket IncludedYes
Muffler Outlet Quantity1
Muffler FinishBlack High-Temperature Paint Finish
Mount TypeFlanged
Inlet Diameter2.50 in.
Clamps IncludedYes
FinishNatural
Exit StyleDual Out Side
Muffler Body Height5 in.
Clamping TypeFlat Band
Muffler Flanged InletNo
Spring Bolt Kit IncludedNo
Muffler SeriesSuper 44 Series
Muffler IncludedYes
Exhaust Tip ConnectionWelded
Tail Pipe Outlet Outside Diameter2.50 in.
Valve TypeNot Applicable
Exhaust Tip Diameter3 in.
Part FitmentDirect Fit
Vendor Part Number817673
Package Qty1
Package TypeEA
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