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3644 1 1/2" Flanged Pro-Flow Street System

List Price: $792.95
Your Price: $689.95
You save $103.00!

Product Code: 3644


No Compromise - High Performance Street Exhaust System!

What sets CB's Pro-Flow Street system apart from the competition... Our 1 1/2" full merged header matched with our High Performance Flanged Heater Boxes (CB #3678).

Manufactured from heavy gauge 1 1/2" tubing and equipped with header flanges to provide 20% more flow than stock heater boxes. They bolt right on to all T-1 & T-2 1600cc based engines. Standard or aftermarket heater channel may be used.

To complete the system we include a DYNOMAX Super Turbo all-alluminized muffler for great looks and long-lasting performance - Patended flow directors eliminate turbulence, large diameter internal tubes improve exhaust flow / reduce backpressure, and fiberglass matting to absorb unwanted interior resonance.

You'll love the Mellow Rumble and gain in horsepower!

Optional: Cable lever arms and hardware kit (CB #3687)

Exhaust Header and Muffler are MADE IN THE USA, Heater Boxes are not.

  • 'Big Bore' 1 1/2" flanged heater boxes

  • 1 1/2" mandrel bent - heavy gauge steel - equal length header - unpainted "raw" steel
  • Full merged collector - small flange (2 1/4" bolt pattern - 1 5/8" center hole)
  • DYNOMAX Super Turbo muffler - alluminized finish

Accessory Parts
3678 Heater Boxes - Flanged - Performance Replacement (set of 2)
Your Price: $299.95

3640 Copper Exhaust Gasket - Small 3 Bolt Flange
Your Price: $3.95

1882 Copper Exhaust Gaskets 1 1/2" (set of 4)
Your Price: $14.95

3686 Small Three Bolt Gasket - 2 1/4 Inch Bolt Pattern
Your Price: $1.95

2801 Graphite Compression Gaskets - 1 1/2" Exhaust Port (set of 4) Torque to 10 to 12 ft. lbs
Your Price: $12.95

2804 Graphite Compression Gasket - Small Three Bolt Gasket - 2 1/4" Bolt Pattern (each) Torque to 12 to 16 ft. lbs
Your Price: $5.95


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Exhaust > Street Exhaust