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Flowmaster

Flowmaster American Thunder Crossmember-Back Exhaust System

Part # 817273 Be the first to write a review

Fits 1964-1966 Mustang, 2.50-inch stainless steel system. - Aggressive to moderate sound

Flowmaster American Thunder Crossmember-Back Exhaust System

In Stock
Free Shipping - Lower 48 US States
Advertised Price $1,177.95
$1,059.95
Save $118.00
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Delta Flow
5

Emissions

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

See Emissions Details
This American Thunder® Crossmember-Back exhaust system is designed for all 1964-1966 Ford Mustang hardtop coupes with a V8 engine. The system features a free-flowing 2.50-inch mandrel-bent stainless steel H-pipe flowing into a pair of 40 Series Delta Flow® mufflers for maximum power and that deep iconic sound. The 2.50-inch mandrel-bent stainless tailpipes tuck up high and are finished off with a pair of long 2.50-inch 304 stainless steel tips for that show car look. Includes all necessary parts, hardware and easy to follow instructions and is covered by our Lifetime Limited Warranty. Note: Does Not fit GT models or convertibles.

Features:

  • Includes Hangers and Hardware for an Easy Installation
  • Mandrel-bent 16-gauge Stainless Steel Tubing
  • 40 Series Delta Flow Performance Mufflers
  • Long Polished Stainless Steel Tips
  • Includes Built-in "H" Balance Pipe
  • Moderate Exterior Exhaust Tone
  • Lifetime Limited Warranty
  • Crossmember-back System

About Flowmaster

Shop the complete line of Flowmaster products for exhaust systems, mufflers, and more that deliver the iconic Flowmaster sound. Available at Holley.com!

Brand Flowmaster
California Proposition 65Yes
CARB (California) CompliantYes
Catalytic Converter IncludedNo
Catalytic Converter Quantity0
CategoryExhaust
Clamping TypeFlat Band
Clamps IncludedYes
Drive2WD
Emission Code5
Exhaust SeriesAmerican Thunder
Exhaust Tip ColorSilver
Exhaust Tip ConnectionWelded
Exhaust Tip CutAngled
Exhaust Tip Diameter2.50 IN
Exhaust Tip EdgeSlash Cut
Exhaust Tip FinishPolished
Exhaust Tip IntercooledNo
Exhaust Tip Length29.125 IN
Exhaust Tip Material304 Stainless Steel
Exhaust Tip Quantity2
Exhaust Tip ResonatedNo
Exhaust Tip ShapeRound
Exhaust Tip WallSingle Wall
Exit StyleDual Out Rear
FinishNatural
Gasket Or Seal IncludedNo
Grade TypePerformance
Hangers IncludedYes
Heat Shield IncludedNo
Inlet Diameter2.50 IN
Inlet TypeWeld-On
Main Piping Diameter2.50 IN
Mounting Bracket IncludedYes
Muffler (Left) Body Height4.00 IN
Muffler (Left) Body Length13.00 IN
Muffler (Left) Body Width9.75 IN
Muffler (Left) TypeChambered
Muffler (Right) Body Height4.00 IN
Muffler (Right) Body Length13.00 IN
Muffler (Right) Body Width9.75 IN
Muffler (Right) TypeChambered
Muffler Body Height4.00 IN
Muffler Body Length13.00 IN
Muffler Body Material409 Stainless Steel
Muffler Body ShapeOval
Muffler Body Width9.50 IN
Muffler FinishBlack High-Temperature Paint Finish
Muffler Flanged InletNo
Muffler Flanged OutletNo
Muffler IncludedYes
Muffler Inlet ConnectionSlip-Fit
Muffler Inlet Inside Diameter2.50 IN
Muffler Inlet Outside Diameter2.63 IN
Muffler Outlet ConnectionSlip-Fit
Muffler Outlet Quantity1
Muffler Part NumberKit Only
Muffler Quantity2
Muffler Series40 Series Delta Flow
Muffler TypeChambered
Part TypeExhaust System
Pipe ColorSilver
Pipe Material409 Stainless Steel
Product TypeExhaust System
Sound LevelAggressive / Moderate
Spring Bolt Kit IncludedNo
Sub CategoryExhaust and Tail Pipes
Tail Pipe Outlet Outside Diameter2.50 IN
Tail Pipe Quantity2
Dual
Tail Pipe Tapered OutletNo
TypeCrossmember-back
Valve IncludedNo
Valve TypeNot Applicable
UPC700042024605
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
Part Number817273
5

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
Instructions - Flowmaster Warranty 26 Update.pdf
Instructions - 817273_instructions.pdf
Does not fit GT or convertible models.
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    *Free Shipping and Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

    Some parts are not legal for use in California or other states with similar regulations.

    Flowmaster American Thunder Crossmember-Back Exhaust System
    Flowmaster American Thunder Crossmember-Back Exhaust System
    Advertised Price $1,177.95
    $1,059.95
    Save $118.00