JDM Integra Type R Exhaust Diameter
I know this has been covered many times...
What key words do I need to use for the search!?!? but no matter what I look up, I come up empty handed. Sorry, just venting. Anyways, this will be answered easily. What is the diameter of the JDM ITR B-pipe? 2.25" or 2.5"? 60mm or 57.2mm? Any reply will help. Thanks, |
Re: JDM Integra Type R Exhaust Diameter
i think its 2 3/8
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Re: JDM Integra Type R Exhaust Diameter
Originally Posted by TypeRMOBBiN209
(Post 45003378)
i think its 2 3/8
So the aftermarket exhausts should have the bigger diameter than the stock jdm. |
Re: JDM Integra Type R Exhaust Diameter
not nessecarily. Apex'i World Sports and N1s are like 2 3/8''. I'm pretty confident that the USDM exhaust is 2.38''...so..would the JDM one be larger? Or is the U.S. one not 2.38?
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Re: JDM Integra Type R Exhaust Diameter
Originally Posted by B serious
(Post 45007514)
not nessecarily. Apex'i World Sports and N1s are like 2 3/8''. I'm pretty confident that the USDM exhaust is 2.38''...so..would the JDM one be larger? Or is the U.S. one not 2.38?
Stock Integra Type R 2.25 57.2 Stock Integra Type R (JDM) 2.25 (ID) 57.2 The USDM and the JDM one have the same diameter. |
Re: JDM Integra Type R Exhaust Diameter
Yes, JDM and USDM exhausts are the same size. The only difference being the different b-pipe length.
After the bottlenecks are removed, the exhaust is plenty adequate in size unless you're making a lot more HP. |
Re: JDM Integra Type R Exhaust Diameter
Bottlenecks being cat, right?
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Re: JDM Integra Type R Exhaust Diameter
Originally Posted by Just a n00b
(Post 45022366)
Bottlenecks being cat, right?
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Re: JDM Integra Type R Exhaust Diameter
Is there anyone that makes something similar to the OEM b-pipe in shape but with a wider diameter?
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Re: JDM Integra Type R Exhaust Diameter
Originally Posted by Just a n00b
(Post 45022443)
Is there anyone that makes something similar to the OEM b-pipe in shape but with a wider diameter?
The OEM B-pipe bottleneck is easy to take care of though. A muffler shop did it for me for about $30. Personally, I'd like to find a good quality axle-back again. I had a SS Comptech back in the day, but I stupidly sold it. |
Re: JDM Integra Type R Exhaust Diameter
Originally Posted by b18c_dc2_davis
(Post 45007627)
Just did a quick research
Stock Integra Type R 2.25 57.2 Stock Integra Type R (JDM) 2.25 (ID) 57.2 The USDM and the JDM one have the same diameter. Jdm itr is 2.25 (Od) not (Id) i just went through this with Dave at smsp ! Usdm its even smaller sorry! |
Re: JDM Integra Type R Exhaust Diameter
I am also interested in this info..
I want to do a JDM ITR header, and OEM USDM ITR Muffler. What do I need to fill in between the header and muffler? is the JDM b pipe the same diameter as the USDM b pipe? the parts listed above may go on my 99 GS-R coupe. BTW: I will be selling my Comptech muffler and Comptech B pipe soon if anyone is interested. TIA!! |
Re: JDM Integra Type R Exhaust Diameter
Originally Posted by jahraul
(Post 46148843)
I am also interested in this info..
I want to do a JDM ITR header, and OEM USDM ITR Muffler. What do I need to fill in between the header and muffler? is the JDM b pipe the same diameter as the USDM b pipe? the parts listed above may go on my 99 GS-R coupe. BTW: I will be selling my Comptech muffler and Comptech B pipe soon if anyone is interested. TIA!! And double whammy on putting a forsale post inside of a GSR question. :hammer: |
Re: JDM Integra Type R Exhaust Diameter
Originally Posted by Todd00
(Post 46151568)
What's it matter? The muffler will be the bottleneck anyways. JDM vs. USDM B-pipe will be of little consequence.
And double whammy on putting a forsale post inside of a GSR question. :hammer: I got the muffler will bottle neck anyway. I dont understand what youre saying about the B pipe. I said it will be for sale soon. No thread, pics, or even price are up man. |
Re: JDM Integra Type R Exhaust Diameter
Originally Posted by jahraul
(Post 46151584)
I got the muffler will bottle neck anyway. I dont understand what youre saying about the B pipe.
I said it will be for sale soon. No thread, pics, or even price are up man. P.S. It all depends upon cat length. |
Re: JDM Integra Type R Exhaust Diameter
usdm and jdm b pipe are the same length, the cats are different lengths, to accommodate the 98 spec jdm itr exhaust manifold
the bottle neck in question on the b pipe is right before where the b pipe connects to the muffler people always argue the size of the piping between usdm and jdm, but even if there is a difference in size it will never make a difference in power, because if you are using a stock jdm itr exhaust mani, cat, b pipe and muffler your motor is also pretty stock, so this exhaust will not hold you back at all in any way |
Re: JDM Integra Type R Exhaust Diameter
Originally Posted by 01-0720
(Post 46152203)
usdm and jdm b pipe are the same length, the cats are different lengths, to accommodate the 98 spec jdm itr exhaust manifold
the bottle neck in question on the b pipe is right before where the b pipe connects to the muffler people always argue the size of the piping between usdm and jdm, but even if there is a difference in size it will never make a difference in power, because if you are using a stock jdm itr exhaust mani, cat, b pipe and muffler your motor is also pretty stock, so this exhaust will not hold you back at all in any way sweet, so if I do a JDM ITR header, USDM ITR b pipe, USDM ITR muffler, what cat size & brand do you recommend to complete the setup? |
Re: JDM Integra Type R Exhaust Diameter
you will need a jdm length car, if that is all your doing id recommend a oem jdm itr cat
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