Flowmaster 64-72 GM A-BODY 2.5 in. American Thunder Crossmember-Back Exhaust System
$849.95
This American Thunder® Crossmember-Back exhaust system is custom designed for most 1964-1972 GM A-body cars and is for the person looking for a complete 2.50-inch dual exhaust system with a moderately aggressive exterior tone and a moderate interior sound. With easy fit in mind, these aluminized steel systems feature all mandrel-bent tubing, an H-pipe to equalize the exhaust pressures for maximum performance and deep sound and includes a pair of specially selected Super 40™ mufflers. The mandrel-bent 2.50-inch tailpipes tuck up out of the way for maximum clearance and offer you two choices of tailpipe exit styles. Like all Flowmaster® systems, benefits include improved throttle response, power, and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for an easy installation and is covered by our 3-year Limited Warranty.
Fits 1964-1972 GM A-Body with V8 engines, 2.5" pipes - Aluminized Steel - Aggressive to moderate sound
Does Not Include Factory Manifold Downpipes or Header Reducer Cones
- Fits most 1964-1972 GM A-Bodies with V8 engines and aftermarket long tube headers.
- Includes Hangers and Hardware for Easy Installation
- Two Exit Style Choices: Slash Cut or Turndown
- Mandrel-bent 16-Gauge Aluminized Steel Tubing
- Moderate to Aggressive Exterior Exhaust Tone
- Built-in Balance Pipe Equalizes Pressures
- Super 40 Series Performance Mufflers
- Flowmaster Quality & Reliability
- Crossmember-Back System
Upgrade your classic GM A-body with the Flowmaster American Thunder Crossmember-Back Exhaust System, designed specifically for 1964-1972 models equipped with V8 engines. This complete 2.50-inch dual exhaust system features all mandrel-bent aluminized steel tubing, ensuring maximum flow and durability. The system includes an H-pipe to balance exhaust pressures, which enhances overall performance and produces a deep, aggressive exterior sound with a moderate interior tone. Built for an easy fit, it comes with all necessary hardware and hangers for straightforward installation, making it an excellent choice for enthusiasts seeking improved throttle response, increased horsepower, and better fuel efficiency. The system offers two tailpipe exit styles—slash cut or turndown—allowing customization to match your vehicle’s aesthetics and performance preferences. Designed to tuck neatly out of the way, the 16-gauge mandrel-bent tailpipes provide maximum clearance and a clean look underneath your vehicle. As with all Flowmaster products, this system ensures reliable quality and performance, backed by a 3-year limited warranty. Please note, factory manifold downpipes and header reducer cones are not included. This crossmember-back exhaust system is suitable for most 1964-1972 GM A-bodies with aftermarket long tube headers, providing an aftermarket upgrade that enhances both sound and performance for your classic muscle car.
Features:
- Fits most 1964-1972 GM A-Body vehicles with V8 engines and aftermarket long tube headers
- Includes all necessary hangers and hardware for easy installation
- Two tailpipe exit style options: slash cut or turndown
- Constructed from 16-gauge mandrel-bent aluminized steel tubing for durability and flow
- Produces a moderate to aggressive exterior exhaust tone with a deep sound
- Built-in balance pipe to equalize exhaust pressures for maximum performance
- Equipped with Super 40™ series performance mufflers for enhanced sound and flow
- Designed as a crossmember-back exhaust system for optimal fit and clearance
- Flowmaster quality and reliability backed by a 3-year limited warranty