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Old 04-14-2003, 10:54 AM   #1
MK19
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Default Perrin Down pipe

OK, after installing my Gruppe-S up pipe, I am fiending for a downpipe and the Perrin really has my interest (no cat model). I am looking to hear from people that have used it only (upgraded OEM to a Perrin) and from people that have gone from another aftermarket downpipe to a Perrin. I hope to hear some reviews.
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Old 04-30-2003, 11:04 PM   #2
jandc
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I had the perrin down pipe with cat installed on my 2003 wrx, and with the HKS hi-power cat back.

I had no problem to install the down pipe, but when I tried to put the HKS hi-power cat back on, it somehow hit the rear sway bar, then I figured out that the perrin down pipe is 1" longer then the stock on the mid pipe portion. I don't know if any different between catless and cat. Anyway, the download and the turbo connected perfectly, it also hangs on the stock position.

I ordered it from MPJ Performance, it didn't come with the turbo gasket, nor installation manual. I think for the catless version, you have to put the resistor on in order to take off the engine light warning.
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Old 05-01-2003, 11:59 AM   #3
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I have a catted perrin pipe.. fitment and craftsmanship were first rate!

Good performance boost.. noticeably less boost flutter noise than other downpiped cars i've ridden in.
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Old 05-03-2003, 12:59 PM   #4
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Old 05-03-2003, 06:35 PM   #5
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I'm very happy with my catted perrin DP. and UP, pulley, and IC hoses

chris
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Old 05-03-2003, 07:05 PM   #6
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I went from the stock dp to a Perrin Catless downpipe along w/ Perrin uppipe too. No probs here...just a little flutter which I like. It took about 200 miles for the CEL to come on and it goes off sometimes too. Nice performance boost & doesn't smell nearly as foul as I thought it would. In terms of sound I have a Bosal cat-back which already burbles deep w/ testosterone and the dp just amplifed it BIG TIME!

Translation= I recommend it.

good luck!
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Old 05-04-2003, 03:48 AM   #7
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I have the catted version, with 3" Stromung mid and axle back.
LOVE the sound(s), and performance No cel's.
As with the other Perrin products that I have purchased, the fit and finish is excellent.
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Old 05-11-2003, 09:28 PM   #8
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I too plan on the perrin Up and downpipe (no cat) and the Blitz Nur Spec R catback .. anybody care to comment ... I figure this is gonna be a LOUD setup but oh well, I don't really like the slow ass drivers around here anyways, they are gonna know I'm passing them!!.
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Old 05-15-2003, 01:10 AM   #9
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Yeah domestic guys like to be heard
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Old 05-16-2003, 12:11 AM   #10
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Whats that supposed to mean?
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Old 05-16-2003, 06:36 AM   #11
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Hey Jandc, did you stay with the hks exhaust or go with something different, if so how did you work around the sway bar problem? I was thinking of going with the same setup.
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Old 05-17-2003, 09:25 AM   #12
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Default okay perrin users

i'm currenly running the HKS downpipe, with the hks ti carbon cat back. will the perrin w/cat version downpipe be direct bolt on with my hks cat back? will i notice a difference from the hks downpipe with the perrin high flow cat downpipe? thanks
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Old 06-05-2003, 04:20 PM   #13
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Default question about the rear joint

Thanks for the reviews. I have one question:
How is the Perrin DP rear end fitted to the stock mid/rear pipe. Is it like the stock set up using the stock donut gasket with spring-loaded springs? Is the flexibility of the rear joint retained (like stock or the stromung 3rd cat pipe)?
Thanks,
-H
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Old 06-05-2003, 05:42 PM   #14
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The perrin downpipe has a standard 2 bolt 3" flat flange.
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Old 06-06-2003, 06:22 PM   #15
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Default Catted DP with M2

does anyone have any experience with the M2 catback mating with the Perrin Cat version?

I am selling my m2 dp - I like the divorced WG design.
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Old 06-08-2003, 08:01 AM   #16
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id also like to know about the fit with the hks hiper, im planning on that setup as well
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Old 08-31-2003, 11:48 AM   #17
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Default Noise levels

I'm a fan of the stock-looking car. I don't want to give any CHPs reason to harrass me.

With a Perrin uppipe and Perrin catted downpipe with a stock WRX muffler, what kind of noise levels would I be looking at? The quieter the better. I just want stock-looking car that hauls.
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Old 09-22-2003, 01:42 PM   #18
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I just installed a Perrin dp without cat (with everything else stock) and it does not make much of a sound difference. Except, I found that there are exhaust leaks on both sides where the perrin dp hooks up to the stock pipe. I bought a OEM turbo back gasket and kept the old gasket on too. My friend said you should of taken the old gasket off. Anyways, with only the old gaskets, there was a huge leak at the turbo back, mostly on the sides, with a lot of lost torque and low end. But with the new gasket and old one on, the leak is to a minimum now. The only noise increase is from the small leaks. Therefore, I recomend buying an OEM turbo back gasket, I experienced a huge leak without one. It is around $25. As for the back of the dp gasket, I just used the old one, because there is only a small very leak there.

I was wondering if the small leaks will decrease performance. The leaks only sound like a small flutter. I mean the leaks will decrease back pressure, isn't that what after market bigger back pipes do anyways? Maybe, too much turbulance?
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Old 09-22-2003, 02:01 PM   #19
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I just installed a Perrin dp without cat (with everything else stock) and it does not make much of a sound difference. Except, I found that there are exhaust leaks on both sides where the perrin dp hooks up to the stock pipe. I bought a OEM turbo back gasket and kept the old gasket on too. My friend said you should of taken the old gasket off. Anyways, with only the old gaskets, there was a huge leak at the turbo back, mostly on the sides, with a lot of lost torque and low end. But with the new gasket and old one on, the leak is to a minimum now. The only noise increase is from the small leaks. Therefore, I recomend buying an OEM turbo back gasket, I experienced a huge leak without one. It is around $25. As for the back of the dp gasket, I just used the old one, because there is only a small very leak there.

I was wondering if the small leaks will decrease performance. The leaks only sound like a small flutter. I mean the leaks will decrease back pressure, isn't that what after market bigger back pipes do anyways? Maybe, too much turbulance?
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Old 09-24-2003, 05:07 AM   #20
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Links to decent vendors currently selling the catted version?
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Old 12-08-2003, 02:23 AM   #21
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I just got my catless dp put in tonight and I love it. I pulled it out of the box and was in awe. The thing is perfect they ground down all the welds on the inside of the pipe and the outside is polished and is like looking into a mirror I almost didn't use the heat wrap because it looks so good. The fitment was great didn't have any problems with it and it came with a resistor so there will be no cel's but I didn't read the instructions and didn't notice this until it was on. I put about 300 miles on my car now and have yet to hear any exhaust leaks or get a cel. The sound level did increase just a bit but nothing to noticable. The boost repsonse I get now is great it spools really quickly now and it pulls a lot harder on the low end and there is a noticable difference in the upper rpm range as well. Well worth 400 bucks.
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Old 12-19-2003, 01:21 AM   #22
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Have perrin up and down pipe with HKS carbon ti exhaust. Does hit rear sway bar, anybody got a fix?. OK performance, large difference in sound, huge gain in torq when turbo spools up, Used perrin o2 sensor eliminator and had a frined solder me up a resistor for upipe. No cel, works great, already got me pulled over once........... wait........... that was cause i did 0-40 in no time right in front of a county mounty............... NO ticket though



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Old 12-19-2003, 03:26 AM   #23
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What you mean like from one side of the intersection to the other?
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Old 12-19-2003, 03:32 PM   #24
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bout 10 ft after
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Old 12-23-2003, 04:11 PM   #25
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i have the hks carbon/ti exhaust and am thinking about the perrin DP. should i go catless or w/ a cat? what r the main differences between the two? also, what else would i need to get w/ it to fit it correctly? gaskets, etc. the thing is i don't wanna get pulled over and face some insane fine for not having cats, but at the same time i want it to sound sick and perform well. is there a big differnce in sound and/or performance between the catted and the catless DP?
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