k20 2.5" or 3" exhaust!!

man im running k24/k20 and im running a 3inch and makes sweet power all the way through..
who ever tells you to go 2.5 on a k is kinda crazy.. anyways 3 is the way..

Interesting....
now I wonder how many ppl here use 3" zorst on their dc5

3 inch all the way.

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Originally Posted by black_dc_5

Interesting....
now I wonder how many ppl here use 3" zorst on their dc5

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no one

Yea, i dont think many people run 3" exhaust on the dc5 though, i usually just see 2.5", is there a reason why to this though?

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Originally Posted by dslt

Yea, i dont think many people run 3" exhaust on the dc5 though, i usually just see 2.5", is there a reason why to this though?

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because we all made mistakes by getting 2.5inch wen we were noobs with cars.. now that we kno we all want 3inch haha.. my next upgrade will be 3inch for sure! :D

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Originally Posted by mr_vtec

man im running k24/k20 and im running a 3inch and makes sweet power all the way through..
who ever tells you to go 2.5 on a k is "CRAZY".. anyways 3 is the way..

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this man speaks the truth!

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Originally Posted by black_dc_5

If you don't mind, where did you get the custom zorst done?

sorry for hijacking a thread a lil:D

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Local zorst shop, in Hornsby. Not brain surgery to install a 3" in a Honda.

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Originally Posted by Dr.k20z1

because we all made mistakes by getting 2.5inch wen we were noobs with cars.. now that we kno we all want 3inch haha.. my next upgrade will be 3inch for sure! :D

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Because most people with a DC5r use it as a daily, and a 3 inch exhuast is going to be very loud, and if you drive on the high way, VERY annoying. Remeber DC5r dosn't have sound deadening, so the exhuast note is going to echo through the cabin.

I have been in a DC5r with a Buddyclub Spec 4 (or which ever is the really loud one). I was only in the car for about 30min and it turned me off loud exhuasts (reason why i run Mugen)

People from the states have been using the 3" systems for years, and alot of the kswap people in Aus have been also so its nothing new, just that people don't want to draw attention to themselves.

If your after as much performance gain as possible, get the 3", but just make sure you have all the other required mods to make it all work (intake and ECU)

you want to run 3" with no muffler ?

Cant get anymore louder :D

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Originally Posted by Nepolian

I have just installed a 3" with toda heads and 3" cat. Let me tell you that there is no loss anywhere in the rev range. The car revs out quicker and is livelier from start to finish. Its also a little louder too though. Call it imagination but I should have put my money on the three inch from the start!

Hope this helps.

BTW 3" may be beneficial if you have I/H and possibly ECU too. On a stocker it may not be as good!

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hey mate, did you have to retune your car after you got the exhauste? cause im in the same boat as you, i have i/h/e/kpro and was wantin to go 3'' but was worried bout retune...

2.5' on a stock k20 is fine with bolt-ons.

If you have a full built k20 or k24 setup then 3' is the way to go.