Exhaust?

GSROWNSU

New Member
Hey guys i know this has come up alot and i have searched for it but i want a nice cat back system for my gsr. what do u guys reccomend. Alot of people up here tell me the Apexi n1 is good but i never hear any of you guys talkin about it in the forums. Is it good/bad? what exhaust (in your opinion) would be the best sounding and performing for my car? I'm still a noob lol

P.S. what about magnaflow? are they any good. if any of you have sound clips let me know
 
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ltrain

New Member
it all depends what u want?? u want low end power or high end and how loud do u prefer your exhaust?...the n1 is for higher rpm range and is loud....i have a greddy evo2 and its ment for mid range and high end it has a nice deep tone to it but not as loud as a n1
 

GSROWNSU

New Member
ltrain said:
it all depends what u want?? u want low end power or high end and how loud do u prefer your exhaust?...the n1 is for higher rpm range and is loud....i have a greddy evo2 and its ment for mid range and high end it has a nice deep tone to it but not as loud as a n1
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did u notice a hp/tq gain from yours? and how loud is yours i want something people can hear but not anything too loud ya know what i mean
 

IntegrasAreBest

Honda / Acura Fanatic
get the buddy club prospec exhuast for your teg. i ordered that along with some other stuff and i called the shop today. they got everything except my headers so im still waiting for intstall but the guy there said he was amazed at how light it is and both he and I are excited to see how it sounds on my teg. i have a friend who has a prospec on rsx-s and its the baddest exhuast i've ever heard.
 


ltrain

New Member
youll notice it on the higher rpm range...if your gonna build your car id say its a must and dont cheep out and get a universal shit can cuz iv been that route and they sound like shit.....any name brand like greddy apexi tannanbe comptech are all good quality but im weary of those cheep brands like tsudo i heard there loud as shit.......theres a differance in the grrrr sound and the greeee sound lol
 

GSROWNSU

New Member
ltrain said:
youll notice it on the higher rpm range...if your gonna build your car id say its a must and dont cheep out and get a universal shit can cuz iv been that route and they sound like shit.....any name brand like greddy apexi tannanbe comptech are all good quality but im weary of those cheep brands like tsudo i heard there loud as shit.......theres a differance in the grrrr sound and the greeee sound lol
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lol yea i know what u mean....i definitely want the grrrr sound. :lol:
so you think the greddy evo is a good way to go?
 

TegSox

Super Duper Moderator
Before you buy an exhaust, you need to decide how far your going to go with your mods and what area of the rpm range you want to build power in. When you have answers to those two questions, you can narrow your choices of which exhaust to buy down to the proper diameter for your powerband goal.
If you are only going to only do the basic 4 bolt-ons (intake, header, high flow cat, exhaust), I recommend a 2.36 or 2.38 inch exhaust, which is what 90% of the exhausts out there are.
If you'll be doing more than just I/H/C/E, you may want to look into a 2.5 inch exhaust, but that's only if your going to do a minimum of a "Stage 1" cam setup and want a high powerband.
The next thing to decide on is the style of muffler you want. There are 3 types of muffler design: Chambered, straight through, and twin pass.
Chambered mufflers are the quietest aftermarket exhausts, but at the expense of high rpm exhaust flow speed which, of course, stunts high rpm power slightly.
Straight through mufflers are wide open and free flowing, allowing maximum exhaust flow at all rpm's. The downside is that they're loud. How loud depends on the size of the muffler canister.
Twin pass mufflers are the best of both worlds. They're as free flowing as a straight through design and as quiet as a chambered design. There are only a couple of manufacturers who make these, and they aern't cheap.

So having said that, the Apexi N1 is a 2.36 inch exhaust with a straight through muffler design and a small muffler canister. It's one of the louder exhausts out there. Will that fit your future needs? Apexi is a quality brand, so if the specs of their N1 fits your powerband needs, you like it loud and like how it looks, I say go for it.
Magnaflow is good stuff too, it's what I have now. I unloaded my first exhaust (an Apexi WS, chambered muffler, 2.38 inch) to go with the 2.5 inch Magnaflow system because I'm going for a high powerband and have "stage 1" cams.
 

GSROWNSU

New Member
so will a magnaflow hurt me if i don't have stage one or more cams. Because right now my car is completely stock as far as the engine is concerned. *edit* or should i say will a 2.5'' exhaust hurt me if i don't have anything else done?
 

TegSox

Super Duper Moderator
I'm honestly not sure, but I'm going to guess that it would make you slower overall. I've never heard of anyone having just a 2.5 inch exhaust on their car and nothing else. It will be a lot more free flowing than the stock system, but it's also going to be so wide in diameter, your low end and midrange TQ will suffer quite a bit. You might gain a little HP way up in the rpm's (like, above 7000 rpm's), bu the damage done to your low end/midrange makes it not worth it.
But that's not really the way to look at it. If you develop a plan for your car, and that plan requires a 2.5 inch exhaust, then your saving yourself money in the long run by buying the proper exhaust at this time.
And as soon as you pick up an intake and header, you won't be slower than stock anymore. Until then, it won't be the end of the world.
 

GSROWNSU

New Member
hey thanks for your time man i never thought exhaust systems play such a role in cars performance....i mean i had a general idea but i didn't know that a 2.5'' exhaust would actually make my car slower alone. A few more questions tho. Some people were recommending thie Greddy Evo2 is that 2.5 or smaller. Because what i'm getting out of this is that bigger (2.5) is not better unless i have some major work done other than simple bolt on's correct?

* i also just did some lookin and the magnaflow catback is 2.25'' pipe which i'm asuming would be better for me if i wanna just go w/ bolt ons for now right?
 
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TegSox

Super Duper Moderator
The Evo2 is a 2.36 inch.
Only a few companies make 2.5 inch exhausts, they are:
-Hytech
-SMSP
-Magnaflow
-Type One Racing
You won't have to worry about accidentally picking one up. They're rare and expensive.
You got it right, bigger isn't better. See, when you get cams you'll be putting more air through the engine per crankshaft revolution, hence, more air will be coming out the other end.

I would recommend 2.25 if your only going to do bolt-on's, and want to focus on midrange power moreso than high rpm power. Pick up a cold air intake, a 4-2-1 header with a 2.25 inch collector, and a 2.25 inch Carsound cat and that's a well put together setup. Good, streetable power gains.
 

GSROWNSU

New Member
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TegSox

Super Duper Moderator
Like I said, it depends on what your plan for your car is. I don't know the answer to that question, only you do.
-If your only going to do bolt-on's to your car and want strong midrange power, that 2.25 Magnaflow will be good for that. Along with a cold air intake, a header with a 2-2.25 inch colector, and a 2.25 inch cat.
-If your only going to do bolt-on's and want high end power, get a 2.36 or 2.38 inch exhaust. Along with a short ram intake, a header with a 2.25 inch collector and a 2.25 inch cat.
 
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