Pipe Size?

[73NorthernDuste]

I am swapping my 225 for a 360. The slant had a dual exhaust system with 2 inch pipe all the way back except for the mufflers which are 2.25 in and out.

For the 360 I have 340 exhaust manifolds with 2.5 inch head pipes. My question is, if I keep the 2 inch pipe after the mufflers will it make a big difference in horsepower. The system is all mandrel bent stainless so I would like to use as much of the old system to save $$$ if possible.

I read going down to a smaller pipe after the mufflers helps speed up the flow but I am not sure if going from 2.5 to 2.25 mufflers then down to 2 inch pipes will work and sound ok? Thanks for any input

Brent.

 

[SirDan]

It should work fine. It might not be the "best" for maximum power but its not like your leaving a ton of power on the table.

I feel that larger pipe has more of an echo effect thrown into the exhaust note. smaller 2" pipe seems to take that echo out of it some.

I'm actually running a full 2" system out of stock manifolds and into noname glasspacks behind my 318. I found it used for a good deal otherwise i think i would have went a bit bigger. It has a really nice sound.