American Thunder Header-Back Exhaust System Stainless With Dual Tail-Pipes 1964 1/2 - 1966 - Flowmaster
Part #: 21426
Manufacturer Part #: 817273
Exhaust System, American Thunder, Header-Back, 2-1/2 in Diameter, Dual Rear Exit, 2-1/2 in Polished Tips, Steel, Stainless, Small Block Ford, Ford Mustang 1964-66, Kit
SEE IMPORTANT INSTALLATION NOTES BELOW
Flowmaster American Thunder Crossmember-Back Exhaust System
Fits 1964-1966 Mustang, 2.50-inch stainless steel system. - Aggressive to moderate sound
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
SPECIFICATIONS:
- UOM: Kit
- Product type: Header-back exhaust system
- 2WD/4WD: 2WD
- Brand: Flowmaster
- Exhaust Series: American Thunder
- Exit Position: Dual Out Rear
- Heat Shield: No
- Inlet Diameter (in): 2.5
- Material: 409 Stainless Steel
- Muffler Flowmaster 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
FITMENT:
- 1964 1/2 - 1966 Mustang Coupe & Fastback, V8, Non-staggered Shocks, Non-GT
IMPORTANT INSTALLATION NOTE: WILL NOT FIT CONVERTIBLES OR STAGGERED SHOCKS. MEANT FOR HEADERS. HEADERS/CONNECTOR MANIFOLD PIPES NOT INCLUDED. MAY REQUIRE SOME DRILLING FOR BRACKETRY.
Year | 1964, 1965, 1966 |
---|---|
Manufacturer | Flowmaster |
Truck Freight | No |
California Prop 65 | ![]() |