Hey guys, I would love to get a catback and open up my exhaust some more, but I only have one issue... I don't like the noise that it makes, but I want the power. Is there any company that makes a catback maybe with a resonator that would have an exhaust note closer to stock? I already have an intake and a y-pipe and think the car sounds perfect the way it is.
If this exists, would the resonator rob some of the power from the catback? Thanx

 

If you are looking for power... Forget a Cat-Back.

Headers or a Y-pipe will give you power.

 

Cat backs give very minimal power. I had a stock cat back and ONLY headers as my exhaust mod, and the sound didn't change at all, nor really didn't hurt power delivery. Very unnoticeable to the untrained ear.

Also, it seems as if you just posted a random thread because had you done your research, you would know everything I'm telling you. Such as, the 2 most popular catbacks are equipped with decent sized resonators



He already has said y-pipe.

 

You suck at teh computer... I suck at teh reading.

 

as mentioned
a catback is only for sound...not performance

 

If you want the stock look, go for a resonated B pipe with the stock axle back. I don't think you'll gain power though.

 

oh ok... my mistake, i thought a catback gave you some power.. yeah i already have an intake and a y-pipe, and was just looking for some more performance mods to do.. i've read that there is some controversy as to whether or not the UDP actually gives noticeable power gains, so i'm not gonna spend money on something i can barely feel if at all.. i was gonna get the header and y-pipe combo, but i wasn't prepared to lay down $800-$900 for it, so i just got the y-pipe.. i have looked around and haven't found any headers that don't already come with a y-pipe for 5th gens.. does anybody know of anybody who sells just the headers? cause i obviously don't need the y-pipe

 

They don't have any.

As for the UDP, it is ok, don't go spending $300 on one. My Motorstorm UDP has been great and I spent like $80 on it in a Group Deal.

 

Just buy a B pipe/Mid pipe to get rid of those crappy bends, (goes from Cat to the Rear section), I have the same setup as the op before i had my resonator cut out and put a pipe in and you cant tell the difference w/ the windows up.

 

Any headers that match another y-pipe aren't worth getting, IMO. Because that means that the they don't have equal length collectors and are shorty style headers. Headers with long tubes and equal length collectors are really what net us all the gains in power, because if not, you could just gut your stock precats and get the same result.

 

And btw, a stainless, 2.5" catback that isn't much louder than stock would be.... Franken.... oh wait, they don't make em anymore.

Just get a 2.5" mandrel bent b-pipe and keep your stock muffler, it isn't that restrictive.

 

Cattman B + stock rear.

 

Frankencar B + stock rear

 

Since it's not available, I suggested said Cattman, you know, helping instead of adding salt to wound.

 

o yeah....i was showing off

 

:

 

lol

 

...pshh, you're not THAT cool. I had one too!

 

FC B pipe + stock rear ftw

I don't know about you guys, but my stock b-pipe looked like it had it's share of restrictive points...

 

IMO and again sound is SUBJECTIVE, my catman c/b was QUIET. once i got the headers on..damn it sounds nice

 

At WOT...

Driving around town...

I got sick of everyone making fun of how loud it was.

 

Frankencar catback HA!

 

You guys are getting old. I've been running headers and catback for years now. As a matter of fact my 40 year old wife drives the car 90% of the time. The kids love when it roars to life first thing in the morning. I must admit though, with the Greddy starting to rust, it's starting to get a little loud. Almost time to put the Cattman Catback and Fastcat on.

 

You need to provide us w/ runfiles already

 

frankencar B and cattman catback ...no y pipe..yet..

Had

 

I checked the exhaust sticky and the y-pipe, test pipe sound/video clip didn't work. Any one want to link me?

 

I wish I had them. I promise next time I dyno I will get them. I didn't have the guidance of your "get the most of your dyno session" post back then. I know you just want to see if my numbers are a fluke.

 

No no, I know they're real, I believe you,. just would like to see the curve.

Way to represent the AT A33B.

 

I know what A33 is, but whats the "B" at the end for?

 

B = 02/3. .

 

I think that when someone makes a statement such as "____ will not give you any more power," they need to define what they mean by "power."

It is NOT a given that "POWER only refers to WHP," because, IMHO, I would consider an increase in torque without any concomitant increase in WHP to be an "increase in power."

A mandrel-bent b-pipe instead of the OEM crimped equivalent may not give you an increase in PEAK WHP, but it will give your engine a more efficient exhaust path, and that difference can be seen on the pre-post dyno charts.

A smoother response curve and/or a reassignment of the RPM points where peak torque and WHP occur would be worth the upgrade, don't you think?

Which begs the question, "Why aren't there more manufacturers making mandrel-bent B pipes?"

Is it because there is more money to be made in cat back systems, or the price differential (and demand) for only B-pipes is just not worth the effort?

 

You can order JUST the b-pipe from Cattman and used to be able to from Frankencar. The Greddy Evo's do not match stock so they have to be used with a full cat-back (unless you want to cut and weld).

Beyond just WHP, the actual gains form the B-pipe are VERY minimal, including Tq (Hp, Tq, flow...). Some say the 3.5 should get a bit more since it has .5L more... But I know I got no noticable gain when I put on my Cat-Back.

The $$ it cost to get it just does not justify the gains. However, if your exhaust rust off, and it will. It cost the same, if not less to go Cattman and then you have SS, and a VERY tiny bit more Hp and Tq.

 

BTW... For the OP.

This is the over axle point they were talking about where the muffler meets the b-pipe. Chances are yours broke on the same flange as mine (common break area).



You can see all the soot left behind from the exhaust...

 

yup...thats where mine rusted. i just dont have a pic of it still on the car

 

Yea, mine is broken here as well, is this super common? I thought it was odd for a 4 year old car to need an exhaust.

Pisses me off because I think they are all overpriced, I used to work in a shop and the exhaust stuff was so cheap it was unreal. $600 is ridiculous for an exhaust.