[whlnwgn]

Hey ya'll, I gots me a little question:
I can get two 3" 40 series flow masters for free. And, since my '77 needs/I want new exaust any ways, I figured what the hell.
Can I run true dual 3" exaust from the headers? My 318 is mildly warmed up, but is getting 340 or 360 heads this summer, and a new cam/timing chain.
So, is it OK?
-Steve C.

 

[chrysler300le]

Too big.

Go with a single 3 inch or dual 2.25-2.5

 

[Evildriver-3]

Yeah dual 3" is to big, you could get the muffs anyway and put a reducer on it since there is no magic to those muffs anyway and they do the same thing

 

[Se7eN]

no way its not to big, im running that right now on my 318. i also have 360 heads on it, with an over sized cam and a stall converter.

 

[mopar-man 3000]

yea to big ive had 3 inch on my 318 and it dose not give it enough back pressure

 

[CollegeCharger]

I would say that it's too big, but I would take them mufflers for free, and then just run a reducer like previously stated. Besides, three inch duals would be too much money for the loss of backpressure and torque. I got 2.5, just cause I plan on buildin' a 360 stroker this summer, while out of school and actually making money and not just wast...spending it on a good education. hmmmm. James

 

[BrianT]

Well u cna run them but u need ot get the cut down forthem and run 2.5 in pipe with 3 inch mufflers will work . Just keep the pipe size under 2.5 andu will be a-ok