Hi-Torque Gen III – Big Block GM, 4-1/2″ Tailpipe Certified

Stainless Marine Hi-Torque Gen III – Big Block GM, 4-1/2″ Tailpipe, Up To 540 Cubic Inches And Over

These systems are incredible performersThey holdboth APBA catamaran and V-bottom recordsThis systemhas recorded speeds in excess of 160 MPH and isdesigned for the person looking for true header performancewith reliability of a manifold systemThis system isdesigned for large cubic inch and supercharged motors.

Industry wide, Stainless Marine exhaust systems are recognized for increased horsepower,remarkable weight savings, an exclusive five-year warranty and an incredible value.

Tests by both HotBoat and Trailer Boat Magazines revealed increases of 3.2 to 6.5 MPH on MerCruiserBig Blockpowered 22′-24′ boats.

The unique construction results in the heaviest manifold weighing only 23 pounds.A huge savings compared to cast iron. Stainless Marine is one of the top quality and leastexpensive systems available today. Note: All systems based on Bravo applications.

Stainless Tail Pipe, Large Collector, V-Band Clamps(No Bolts), 15″ Long Runners. Press Formed Water Jacket for Better Cooling. Thick SingleWall Casting. Better Flow Capacity (Larger than Big Tube Headers)