need to increase back pressure...

[cantspell]

Hi there. I have in intake and magnaflow muffler (2 in, 3" single out). And it appears that i need more back pressure, so my quesiton is - how to achieve this?

I sort of still want something that perhaps sounds a little better, but the sound is not a priority, fuel economy is.

As i see it, my two options are I can get a stock type muffler, which will make it quiter, but still a little different due to the tip, or (now this is a little strange) can i turn around the muffler, put a 'Y' pipe on the dual 'in' so it fits into the single out and then have two tail pipes? SO essentially reverse the muffler? That's got to give me a nice bit of back pressure, but would it be too much to screw up the sound a lot?

 

[Alec]

What's your reasoning that you need to increase backpressure.

What diameter is your tailpipe, or is it still stock?

 

[old#7]

Get a whistle-tip, that should give you some back pressure and that WOO-WOO.

 

[Alec]

If you have a tailpipe larger than 2.5", go to 2.5". If it is 2.5" already, go to 2.25". That'll only cost $30-40 and is your best option if you want to increase backpressure but keep your Magnaflow.

 

[Hokie]

Why will increasing backpressure increase mileage? I'm confused on why you want to do this...

 

[hrbib21]

"Well you wanna WOO WOO!!!"

 

[unclemeat]

I think back presssure is a misleading term. The point is to have the exaust system which creates laminar flow at the greatest flow rate. Laminar flow is much more efficient than turbulant flow.