lcrazyaznl

iTrader: (1)

I was wondering 700 or 800 bucks is alot for me to spend in one shot. Are their alternatives some kid mention I should look into just getting the catbacks changed...

Is there any performance in it or basically its just adding sound to the car?

Any suggestions of catbacks? I was looking at Jtuning.com
Any other sites to check out?

virtualbong

No advantages of changing out just the catback, it may even hurt performance since you're not changing the amount of the exhaust flow but increasing the pipe diameter. I'm not an expert though, I just research.

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DietCoke

VB, doesn't the Greddy Evo2 increase exhaust flow and add a little bit of hp?

lcrazyaznl

iTrader: (1)

Alrighty cuz people were telling me to get this fugly looking catback on those vw or riced civic...

I'm like im saving for 700 on either a futisubo or comptech.

Anyone tried going to meinken? in replacing their exhausts? I remember there was a thread, but it sort of died out.

virtualbong

Are you kidding or are you serious? From what I've read (I've never dynoed any of my cars), but changing just the catback does nothing to help the exhaust flow since you're not changing the anything in the engine bay, ie. CAI/SRI/Header, etc... Since everything is stock inside, the stock piping is already set at the perfect size to make the exhaust flow efficient. Now changing the piping with an aftermarket one will only disrupt the flow because the exhaust pulses stay the same size, the added size of the pipe will disorganize the flow. Here's a good article to read about exhaust flow basics:

http://www.team-integra.net/sections...p?ArticleID=47

lcrazyaznl

iTrader: (1)

Ahh interesting, so do you think switching a new exhaust is necessary really?

Or just wait till these start to give out a bit for a new set?

virtualbong

I switched it just because I really dislike not having any sound when I go WOT. The Evo2 that I just installed is the perfect remedy.

If I was doing the basic boltons (performancewise) like I did for my Integra, I would do it in this order: CAI -> Header -> High Flow Cat -> Catback

It depends on what your goals are for your car.

DietCoke

If this is true, why would the comptech exhaust claim to raise hp, they show it in their dyno's... It's only a cat-back, nothing in the engine bay

virtualbong

Like I said before, I have only researched on the Internet, nothing in person. The only thing I can think of is that the Comptech Catback has the same piping size, but has Mandrel bends and the muffler is a straight thru. And seriously, the gains most likely are not noticeable and very minimal, even if they do make those claims...but, like I said, I haven't dynoed the catback, so this is just my educated guess.

rmpage

That's the logical way to do it. Until you remove or replace the cat, the catback isn't going to do anything for you except look/sound different. It is purely an aesthetic upgrade. The cat is by far the most restrictive bottleneck of the exhaust system. Once you clear that out, then it's time to look into working on the rest of the downstream exhaust.

DietCoke

Yeah, I guess it's not noticable so it really doesn't matter... The sound is just fooling your mind. Btw, VB post some clips when you get a chance, I can't wait to see how that EVO2 sounds

lcrazyaznl

iTrader: (1)

So thumbs down on replacing jsut the cats?

And thumbs up in saving for a whole exhaust?

DietCoke

Yes, but a catback will not void the warranty (usually) and a full system might (it has a greater chance)...

Deelover

The fujistubo exhaust on sound and looks alone is worth the money. An exhaust system is one of a few mods that can actually be seen by other drivers. Also it is not loud but a deep throated sound. When other drivers see my shiny mean looking dual exhaust showing from the rear they always ask what type of exhaust it is... and they automatically assume you have other work done. (ie.. under the hood). The stock exhaust is so quiet it is almost feminine. Think about how the exhaust sound alone on the infinity G35 makes it such a hot car.

rmpage

Depends what your objective is. If it's looks and sound, a catback is the way to go. Headers and a cat don't help you much there if at all. If performance is your goal, like it always is with me, then you need to approach the problem from the exact opposite direction - starting at the engine - not with what everybody can see.

virtualbong

And for people who are performance minded in their purchases, I think the Fujitsubo wouldn't be the correct choice since its a chambered muffler (I think rmpage confirmed that its a chambered muffler). Now, the Greddy Evo2 is a Straight Thru muffler, so it would give the best exhaust flow out of the muffler. Obviously, who really knows how much better it is, but logically it should be better.

This Sunday, we'll have a sound clip and vid of the Greddy Evo2, Comptech and Fujitsubo. It'll be a good comparison for everyone since these are the main choices for TSX owners.

Tsx536

^^ Can't wait to hear those clips.

rmpage

Heh, we should line our cars up (you, me, and whoever has the Comptech catback) and film them all at once. It'd be the best comparison posted here yet.

Also, yes the Fuji uses a chambered muffler. It's the ovular can that gives that away, unless I'm wrong. I would've got the Evo2 but at the time I was worried about noise levels. I really wish manufacturers would post internal designs of their exhaust/cat/headers online so people like me that care about these things can see how they work inside.

virtualbong

No that actually isn't totally true. My bro's old Altima had a oval (stock style) Magnaflow muffler and it was actually straight thru, so it was MAD loud. If the Fujitsubo is pretty silent that is what gives it away. For straight thru mufflers, the Greddy Evo2 is by far the quietest out there. There are some mufflers that are silent and perform as well as a straight thru muffler and that's a twin loop muffler.

Here's a good article from Team Integra.

Exhaust Design Effects on Noise

lcrazyaznl

iTrader: (1)

Hey to bump this up
where are some sites or places you went to buy your exhausts?

RMATIC09

I didnt buy my exhasut for performance, but for looks/sound, and the small gains it gives.

rmpage

www.overboost.com has a wide selection for reasonable prices. That's where I got my Fujitsubo catback.

What's funny is that most true "performance" exhausts are nothing more than some straight pipes with a free-flowing muffler at the very end. They look meh, and sound awful (to most people).