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Old 06-27-2005, 11:10 PM   #1
HolyCrikey
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Default Exhaust Q's: Perrin 3.0 axleback and performance?

Ok, I'm narrowing my search for my change of exhaust.

First, I love the look of the Prodrive stuff, but from all the pictures of it I see, I noticed rust and nastiness that doesn't seem like it can be washed off. Am I seeing this correctly? I need an exhaust that will hold up.

Second, I am falling in love with the Perrin axleback section that is dual tip. However, it's has a 3 inch pipe. Would I see much of a performance decrease if I mated this to a 2.25" catback system? Would welding work make it possible?

Thirdly, besides strommung, are there any other dual tip axle-back sections like the Perrin? I love those big 2.5 inch tips, but am having problems finding any good dual tip stuff. I'd rather not go with just a muffler and have it welded on. I'm looking to put down some dough this time.

Thanks for all the help, and yes, I realize this is another assload of exhaust questions
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Last edited by HolyCrikey; 06-28-2005 at 02:53 PM.
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Old 06-28-2005, 12:24 AM   #2
piker28
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most the stuff off my oval tip came off when i cleaned it

yes welding would need to be done to get that monster to fit, and i think there would be some decrease or something

i cant really think of any other dual tips, unless you got a universal mufflelr and had a muffler shop make an axleback pipe to the midpipe
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Old 06-28-2005, 01:02 AM   #3
shoeler25
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If its just axle back thats 3 inch, it wont affect performance as much as a full cat back that big. I doubt you will ever push the car enough to actually tell theres a difference. But to be safe, I personally would find a full 2.25 cat back. For another dual tip option, you could look into the Borla Hush for the wrx, itll need to be welded, and I cant remember the pipe size.
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Old 06-28-2005, 02:02 AM   #4
HolyCrikey
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Yup, I've looked all over for a full 2.25 system. And I just don't like much of what I see. Stromung doesn't do it for me, the cobb is far to expensive and a bit hard to come by used, and I can't stand fart-cans, and would rather not go with another universal muffler application. Not to mention, as above, I love the dual-tip design, but all the good ones are for WRX applications it seems.

Looks like I'll be going with a Perrin dual tip axleback (relocate hanger positon, as per my other thread), mated to a custom 2.25 SS catback system.

Then in another about 5k, I'll be throwing on the stromung high-flow cat section.

I'm gonna try a full 3 inch axleback. I doubt I'll notice much change really. I'll definitely report back here if I do notice any negative response. This'll be an interesting project.

Thanks for the replies guys. If this all goes through like I'd like, I'll be postin some pics.
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Old 06-28-2005, 02:06 AM   #5
piker28
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not sure of your setup but if you have headers and what not might want to rethink the cat, i have the stromung single tip and it really is ungodly loud i almost think i might have to find a way to get it to shut up!
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Old 06-28-2005, 02:15 AM   #6
HolyCrikey
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Quote:
Originally Posted by piker28
not sure of your setup but if you have headers and what not might want to rethink the cat, i have the stromung single tip and it really is ungodly loud i almost think i might have to find a way to get it to shut up!
True. I know if I go with a high flow cat it'll get a bit too loud. I have a resonator in my 2.25 catback as it is, and it's not bad at all. A lil droney at highway speeds, but easily tolerable. I'd definitely like to drive in someone's subaru who has a track pipe, or just a high flow cat to check the difference.

As of now, I do have borla headers connected to stock cats, to the custom catback.
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Old 06-28-2005, 02:17 AM   #7
piker28
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my car is pretty loud, like really loud hah, but i have no resonator with the stromung but man im so getting a ticket with this setup hah
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Old 06-28-2005, 08:10 AM   #8
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Have you looked into the Brullen sets? They're REALLY nice.

I know you said you don't want universal, but Magnaflow makes some pretty decent stuff....
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Old 06-28-2005, 11:14 AM   #9
HolyCrikey
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Yup, I've checked out both Brullen and Magnaflow. I do like magnaflows stuff, but agian, I really want an axleback that'll attach to either a stromung midpipe, or just a custom midpipe. That way, further down the line, I can switch out axlebacks, should I want to
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Old 06-28-2005, 11:33 AM   #10
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Why don't you get a muffler (2.25" inlet) with dual outlets, buy tips that you like, and have an exhaust shop make you a custom axle/cat-back exhaust. It would be cheaper better performing than trying to put a turbo exhaust on your car.


Mick
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Old 06-28-2005, 02:14 PM   #11
HolyCrikey
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Quote:
Originally Posted by Slack
Why don't you get a muffler (2.25" inlet) with dual outlets, buy tips that you like, and have an exhaust shop make you a custom axle/cat-back exhaust. It would be cheaper better performing than trying to put a turbo exhaust on your car.


Mick

Yuuup. I've gone that route, but I just don't quite like the custom idea when it comes to a muffler. Call me silly, but I finally wanna put something name-brand on my car. And the Perrin is just beautiful to me. I just purchased the 3" Perrin dual tip, and I really don't see how my performance would hurt that much if it's just an axleback. I'll be going with the 3" and have a custom SS pipe that'll narrow to 2.25 for the rest of the catback. I definitely wouldn't go with a full 3 catback or even 2.5 catback.

Edit: Worse comes to extreme worse, I can have them chop off the 3" section and weld on a 2.25 axleback section if performance really lacks.
But with the RS, I just don't really see how I'd notice the change that dramatically with just a 3" axleback. Hopefully it'll work out

Any other comments on the performance of a 3" axleback on an RS? I'd love to hear all opinions on the subject

Last edited by HolyCrikey; 06-28-2005 at 02:53 PM.
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Old 07-06-2005, 07:27 PM   #12
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Hamfist runs a 3 inch catback on his n/a hehe... I'd not go bigger than 2.5 personally unless you're planning on going f/i. If you have some way of adjusting fuel and timing you can benefit from it but otherwise it's kinda wasted space. And ditto on the stromung midpipe... loud as hell hehe... considering replacing it with a cobb one.
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Old 07-16-2005, 03:04 AM   #13
anonymous_wolf
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i used to have a WRX apex'i N1 catback (2.55" midpipe 3.05" axle back)
low end torque is gone, but i have pretty good high end power

now i have brullen header/hi-flow cat matted to RS apex'i N1 (which got a 1 inch hole on the axleback)
there's definitely more low end torque w/ this set up but high end seems to be about the same.

i'll do more test driving after i get my axleback fixed.

anyways, u'll be fine w/ 3" axle back.
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