Question about exhaust.
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Question about exhaust.
So I'm looking to upgrade my exhaust on my GS Sedan teggy. Now here is my question. I see all these exhaust for GS-R sedans but not for a GS sedan. Are those exhaust compatible or is there something I am missing. Any direction or info would be greatly appreciated. I'm sorry in advance if this is the millionth time this has been asked but I am new to Honda/Acura tuning and don't know where to go for parts...
Re: Question about exhaust.
exhausts are all the same on the 2 DOOR RS,LS,GS,SE,GS-R, and Type-R. Only the exhaust manifolds are different on the GSR and Type R. 4 doors are a lil longer but can fit if you cut it
Last edited by B20ztek; Dec 15, 2011 at 03:48 PM.
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Re: Question about exhaust.
Well that is great and really do appreciate the help but if the exhaust I am looking at is for GS-R 4DR than it should work is what you are telling me b.c I drive a GS 4DR. I don't understand if you say they are compatible on the two doors then why would I need to cut anything if the part is designed for a 4DR teg. The motors are the only thing that is different and you said the manifold... So I would get a header that goes on the B18B, get the exhaust I want then what... If the header comes to a 2.5in and the exhaust is 2.5 inches then why couldn't I just get a universal cat with 2.5in inlets and get some flanges welded on it so it could bolt up... wouldn't that work? l0l if not please explain.
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Re: Question about exhaust.
He is talking about the header. The difference is height of the actual motor between vtec and non vtec. Wich would affect length of the header runners.
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Re: Question about exhaust.
You need to decide how much of the exhaust you are wanting to change. BTW, some cheaper exhausts that you might be looking at can require a muffler shop to make fit. It's not too much to have them do, but you can almost count on needing it done.
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Re: Question about exhaust.
In my opinion, I would buy piping through the internet, a vibrant muffler, and get a muffler shop to fabricate your exhaust. That is what I am going to do. Costs about the same as paying for a real exhaust.
The reason I am doing it is because of the design of the DA's exhaust, there are 3 90degree bends, and you actually lose 15% flow at every 90degree bend in an exhaust, so that's a 45% loss of flow. So I am going to make it as straight as possible, and come out the passenger side like the DC's do.
The reason I am doing it is because of the design of the DA's exhaust, there are 3 90degree bends, and you actually lose 15% flow at every 90degree bend in an exhaust, so that's a 45% loss of flow. So I am going to make it as straight as possible, and come out the passenger side like the DC's do.
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Re: Question about exhaust.
i'm pretty much on the same boat but I'm not sure which piping size to order. Whats the difference between 2.25" and 2.5" piping? My car is N/A with simple bolt ons, so I know I won't need 3".
Is 2.5" going to sound deeper than 2.25" or does it depend on the resonator and muffler? Which one will have the most gain?
Is 2.5" going to sound deeper than 2.25" or does it depend on the resonator and muffler? Which one will have the most gain?
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Re: Question about exhaust.
If your going NA go with 2.25", there isn't much of a difference, but NA you want backpressure, and flow, 2.5 may have better flow but not enough backpressure to be efficiant.
Re: Question about exhaust.
hm are you sure though?
i just came across this post from 4 years back.
https://honda-tech.com/forums/showth...1169148&page=2
that being said, does that mean I lose low - mid range power with a 2.25"? what will 2.5" do?
i just came across this post from 4 years back.
School yourself. Read the exhaust article on team-integra.net...actually, read all the articles. They're worth it.
If you're close to stock (simple i/h/e upgrades, no cams) then don't get a 2.5" or greater exhaust system. I have a 2.25" cat and b-pipe leading into an itr axelback on my b18b. With a 2.25" system there is a noticeable loss under4k, and I can tell my powerband shifted up further to around ~5300 RPM. Butt dynos aren't COMPLETELY reliable, but without a doubt I notice the difference. Especially when driving my friend's b18b with a stock ~2" exhaust and driving my own car with the upgraded exhaust (and dc header) right afterwards. He definitely has a bit more low to mid range power.
Stick to a 2.25" system and nothing greater. If you're not pushing out gobs of air, be responsible with your setup, or you WILL lose power. I speak from experience and from what math tells us
If you're close to stock (simple i/h/e upgrades, no cams) then don't get a 2.5" or greater exhaust system. I have a 2.25" cat and b-pipe leading into an itr axelback on my b18b. With a 2.25" system there is a noticeable loss under4k, and I can tell my powerband shifted up further to around ~5300 RPM. Butt dynos aren't COMPLETELY reliable, but without a doubt I notice the difference. Especially when driving my friend's b18b with a stock ~2" exhaust and driving my own car with the upgraded exhaust (and dc header) right afterwards. He definitely has a bit more low to mid range power.
Stick to a 2.25" system and nothing greater. If you're not pushing out gobs of air, be responsible with your setup, or you WILL lose power. I speak from experience and from what math tells us
https://honda-tech.com/forums/showth...1169148&page=2
that being said, does that mean I lose low - mid range power with a 2.25"? what will 2.5" do?
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Re: Question about exhaust.
Well basically he is saying to go with 2.25. But I'm not to sure about exhausts and na motors, I have always been a forced induction guy (DSM's), I just recently got into honda's when I had an integra given to me for free lol.
Re: Question about exhaust.
Not all are the same. You even said it in your post. If the header varies in size, how can the exhaust be the same for all...
To clarify:
94-01 LS, GS, RS, ITR and 98-01 GSR are all the same (2 door)
94-97 GSR is Different due to the exhaust manifold length. (2 door)
As for the 4dr, the same applies.
Re: Question about exhaust.
Aftermarket exhaust companies make 2.36, 2.5, 2.75, and 3 inch.
For a mild NA setup, it's not recommended to go past 2.5 inch piping. That's all you would ever need unless you're talking serious motor work, then I'd opt for the 3 inch.
Btw, I'm shocked at the amount of misinformation nowadays in these threads...this is all basic stuff that has been asked and searched thousands of times.
Re: Question about exhaust.
Sorry meant to say almost 2.25. My mistake.
Either way 2.25 inch piping is not very efficient anyway. Most aftermarket companies don't even make piping size that small.
Either way 2.25 inch piping is not very efficient anyway. Most aftermarket companies don't even make piping size that small.
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