This american thunder crossmember-back exhaust system replaces the factory piping with mandrel-bent tubing and a specially tuned muffler to open up exhaust flow and sharpen the exit note. All factory hanger locations and installation hardware are retained, so the system bolts into place without cutting or welding.

Product Highlights for the Flowmaster American Thunder Crossmember-back Performance Exhaust System For 1973-1974 Chevrolet and GMC C10:

• For 1973-1974 Chevrolet and GMC C10, C20 2WD.
• V8 Engines.
• System Type: Crossmember-back.
• Exhaust Series: American Thunder.
• Main Piping Diameter: 2.5 in.
• Exit Style: Dual Out Rear, Dual Out Side.
• Muffler Type: Chambered.
• Exhaust Tip Quantity: 0, Sold Separately.
• Sound Level: Aggressive to Moderate.
• Valve Included: No.

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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