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Straight Exhaust vs. H-Pipe vs. X-Pipe!

This episode of Engine Masters presented by AMSOIL delivers the goods many viewers have asked for as we test the power of straight dual exhaust with no crossover pipe versus using an H-pipe versus an X-pipe. Will the old bench-racing stories come true, or is it all hocus-pocus? We find out using a basic 5.3L GM LS3 engine then precisely spell out the effect these exhaust-system modifications have on horsepower and torque. Engine Masters is supported by Auto Meter, Mr. Gasket, Earl’s Vapor Guard hose, and now Permatex!


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20 hours ago

Muscle Car Fan

1965 CORVAIR MONZA Almost perfect original for sale 50,000 miles. ...

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I bought a 66 Corsa new, 140 hp, 4x1 carb set up, 4 on the floor ! Loved that car!!

Dad had a 65 Monza that we took fishing a lot. I remember putting some nice fish in that front trunk.

Robert Carll

Had a 65 monza. Nice cars

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Does it leak antifreeze? How’s the water pump?

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I have these

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2 days ago

Muscle Car Fan

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1 week ago

Muscle Car Fan

Found a sweet all original 64 Cadillac, needs a motor ...

1 week ago

Muscle Car Fan

64 All original Cadillac with 53,000 miles ...

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