Im planing on purchasing a flowmaster 40 single/in and dual/out, just want to know if the dimensions would work for my 2002 dodge dakota sport 3.9 v6 4x4, the dimensions are 3.0" in and 2.5" out/duals on the flowmaster and I just want to know if I can put that on my truck.

 

I'm not sure on your motor but I can tell you, I like the sound of my 40 series however when i put it on it felt like there was a loss of get up, very minute but noticeable. I think for my 5.2L Flowmasters website called for something else. That is what I would recommend going with, what ever they recommend.

 

I think it's straight 2.5 the whole way

 

I couldnt find a straight 2.5 with duals, so do you think it will work, im changing the cat also with high flow, so it will be all new pipes, what do you think.

 

I think you need to find a muffler shop in your area that really knows what they are doing.. so they can give you the best advise possible.

To be honest with you man you might wind up taking advise and following through with it and it not be what your looking for and wind up just like me, with adverse effects you were not expecting like a decrease in get up and go..

 

my 04 was 2.25 pipe and i did a adapter to 2.5 in the muffler was a flowmaster 40 single in duel 2.5 out and did turn downs under the cab and love the way it sounds

 

When I got mine, they (Place I got it done) said that mine was a 2.5", when they put the muffler on they made it 3". about 2 or 3 feet before muffler and all of it after.

 

off the manifolds its 2.25 then after the cat its 2.5 for stock 4.7. mines 3inch cat then 3.5 after.