piping size

[digital-d]

I was just wondering if I could fit a 2.5" pipe onto a 2" muffler. I found out that the flowmasters I got have only 2" openings and I am currently waiting for a hi-flow cat and that's 2.5". I'm figuring that the larger pipe will compensate for the loss of power from the flows.

[99GrandAMSE]

I am sure a muffler shop could make you an adapter piece but it might act as a 'bottle neck' :(

[BBT]

Flowmasters lose power? That's a new one. Why bother with performance mufflers if they are going to 'lose power'?

A good shop should be able to spread the opening on the Flowmasters a little.

[99GrandAMSE]

Originally posted by BBT
... A good shop should be able to spread the opening on the Flowmasters a little.

I thought of this too but assumed 1/2" might be a little too much :shrug: ... if they can do it, this would be the BEST option :)

[BBT]

Yeah, 1/2 inch may be too much, but anything is better than constricting it. A better option would have been to get all the matching sizes in the first place, or buy to fit what is already in place.

[Old Guy]

Originally posted by BBT
Yeah, 1/2 inch may be too much, but anything is better than constricting it. A better option would have been to get all the matching sizes in the first place, or buy to fit what is already in place.

I didn't know flowmasters came in 2" openings. Maybe combine the 2....have them open it up a little and then maybe run a taper down to the size instead of an abrupt adapter. But I agree.....same size from one end to the other is the best way to go. but then I usually agree with BBT and Kelly on most things.....must be the age!

[BBT]

That's because age usually brings with it knowledge, experience and patience. That and the money to pay for things to be done right in the first place. :D

[slwdapimp]

I just got the sizes to match up and i had an INCREASE in power, huge increase. I have a friend who works in a muffler shop and he said that it would be stretching it, but it should work with the adapter.

[Old Guy]

Originally posted by BBT
That's because age usually brings with it knowledge, experience and patience. That and the money to pay for things to be done right in the first place. :D

The number one thing is PATIENCE!!! Took me 3 months to decide on what my exhaust would be. I've been building a Ram Air/CAI setup that works for at least that long.....and I think I may have it :) Dyno time!!!!

[99GrandAMSE]

Originally posted by The Old Guy
The number one thing is PATIENCE!!! Took me 3 months to decide on what my exhaust would be. I've been building a Ram Air/CAI setup that works for at least that long.....and I think I may have it :) Dyno time!!!!

... I'd be interested in hearing more about your design if you would care to share :)

[digital-d]

Originally posted by BBT
Flowmasters lose power? That's a new one. Why bother with performance mufflers if they are going to 'lose power'?

A good shop should be able to spread the opening on the Flowmasters a little.

Flowmasters are way better flowing than stock mufflers, especially that huge muffler they put on the 95 ga's. I'm just saying that way cause I have a 2.5" straight through muffler on my car on a stock pipe. After the resinator the guy I went to make an adapter for me, but I've had this setup for what will be 2 years in october. Basically I just inhearated the flowmasters and I found a good deal on a hi-flow cat. If they can make the oppening on the flows about 1/4" bigger that would be good enough. I figure that if I am going with 2.5" piping I should stay with flows cause I would lose all my low end with a straight through.