I plan on getting an exhaust in the next few weeks. I wan't a fairly cheep 2.5" that eliminates the second cat. Can someone please direct me to the right place? Thanks
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Need some help...
HuntinCooter
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I plan on getting an exhaust in the next few weeks. I wan't a fairly cheep 2.5" that eliminates the second cat. Can someone please direct me to the right place? Thanks
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4,810 Posts
Pretty sure they only offer that in 2.25". If they made it in 2.5" I would be willing to get one
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899 Posts
Why not find a suitable muffler and just have an exhaust shop do it custom. Should end up being cheaper than a cat-back.
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So what would someone gain by going 2.5 from 2.25? Has this been tested?
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Personally, I think once people start getting stuff like P&P heads, custom intake manifolds, cams, race headers, etc... all at once on their 2.3's, your going to see a need for 2.5" cat backs. It's a bigger engine, it's need's to breath better, right?
If it were me I'd start with a 2.5" just to avoid having to get it in the future if you find out it's worth a few lb/ft over the 2.25" ones.
If it were me I'd start with a 2.5" just to avoid having to get it in the future if you find out it's worth a few lb/ft over the 2.25" ones.
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5,478 Posts
exactly^^^^
truth is with all that torque you're making downlow, the tradeoff means jack in the end. I doubt you'd find even a deadstock PZEV suffering w/ torque loss.
by the time you've got I/E (not even headers, let alone cam, etc) you're prolly gonna get a significatn gain out of a 2.5 versus a 2.25
truth is with all that torque you're making downlow, the tradeoff means jack in the end. I doubt you'd find even a deadstock PZEV suffering w/ torque loss.
by the time you've got I/E (not even headers, let alone cam, etc) you're prolly gonna get a significatn gain out of a 2.5 versus a 2.25
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Because an exhaust shop can't touch the cat.Why not find a suitable muffler and just have an exhaust shop do it custom. Should end up being cheaper than a cat-back.![Image]()
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And a shop can't mendral bend the pipe.
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This is true.......
We have several local shops that have a mandrel machine up here.
As far as the 2.5" vs. the 2.25" Over at the NASIOC (soob site) the best performance was by using a 2.25" on ALL Naturally Asperated engines. I know that this isn't a 2.5L flat 4 boxer engine that is producing 165 hp and 167 torque from the factory, then add headers, intake, and port and polish and you will be ~200 crank hp. Slightly more than the 2.3L.
If you are going to go forced induction then go 2.5"
Just for some reference the WRX and the STi both run a 2.5" from the factory, in case you forgot...the STi is around a 300hp/300torque engine.
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^^^^^
Great information!
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Great information!
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indeed, i had no idea cars were going that high HP NA with a 2.25^^^^^
Great information!
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Maybe you need to know them then, cause the guy I deal with has always done it for meBecause an exhaust shop can't touch the cat.Why not find a suitable muffler and just have an exhaust shop do it custom. Should end up being cheaper than a cat-back.![Image]()
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Exactly 2.25 is plenty for this little motor. I think it's funny on the 2.0 everyone ran away from the 2.5 inch and on the 2.3 (which is only 300cc's more mind you) every wants 2.5inches. 2.25 is a pretty well accepted exhaust size for n/a sub 3L 4 cylinder engines.
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