First Generation 1964-1966 Ford Mustang 2.5" American Thunder Crossmember-Back Exhaust System - 817273 - Flowmaster

First Generation 1964-1966 Ford Mustang 2.5" American Thunder Crossmember-Back Exhaust System - 817273 - Flowmaster

MSRP $1,322.99
Sale Price $1,149.99

Affirm - Available for US shipments only.

Stock Status: Available Please allow additional time for delivery. This item requires special handling or may ship directly from our supplier.

First Generation 1964-1966 Ford Mustang 2.5" American Thunder Crossmember-Back Exhaust System - 817273 - Flowmaster

MSRP $1,322.99
Sale Price $1,149.99

Affirm - Available for US shipments only.

Stock Status: Available Please allow additional time for delivery. This item requires special handling or may ship directly from our supplier.
Fitment & Application

Submodel: Classic Mustang

This product is not eligible for coupons, promotions or volume discounts.
Features/Benefits

Features/Benefits

  • 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 Super 44 Series 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 Flowmaster's Lifetime Limited Warranty.
  • Does Not Fit GT Models Or Convertibles.
  • Fits 1964-1966 Mustang, 2.50-Inch Stainless Steel System.
  • We are unable to accept returns on any exhaust system or component that shows evidence of being installed. Installation marks, scratches, or any alteration observed on the product will render it ineligible for a return, credit, or refund. Please carefully inspect and consider your exhaust system choice before installation to ensure it meets your needs and expectations.
  • Engineered to Meet or Exceed OEM Specifications
  • MADE IN AMERICA
  • OEM Part Number: 817273
  • Associated Years: 1964-1966
  • Item Quantity Size: 1 EA
  • Shipping Dimensions (LxWxH): 52.5in x 15in x 17.25in
  • Weight: 70.4 pounds
  • Tariff Code: 8708925000
  • Keywords: Exhaust, Exhaust System Kit, Restomod
Additional Details

Additional Details

  • 2WD/4WD: 2WD
  • Brand: Flowmaster
  • California Proposition 65 Chemical Name: Chromium (Hexavalent Compounds)
  • California Proposition 65 Chemical Name: Nickel (Metallic)
  • California Proposition 65 Required: Yes
  • Emission Code: 5
  • Exhaust Series: American Thunder
  • Exit Position: Dual Out Rear
  • Heat Shield: No
  • Inlet Diameter (In): 2.5
  • Material: 409 Stainless Steel
  • Muffler Part Number: Kit Only
  • Muffler Quantity: 2
  • Muffler Series: 40 Series Delta Flow
  • Outlet Diameter (In): 2.5
  • Product Type: Exhaust System
  • Single Dual: Dual
  • Sound Level: Aggressive / Moderate
  • System Type: Crossmember-Back
  • Tip Diameter (In): 2.5
  • Tip Quantity: 2
  • Tubing Diameter (In): 2.5
  • Warning: California Proposition 65
  • Shop Retail Mustang Parts & Accessories
  • Shop Wholesale Mustang Parts & Accessories
  • Fits Year: 1964, 1965, 1966
  • Fits Generation: First Generation Mustang

California Residents: See Prop 65 Warning

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