What is the best catless uppipe for a 2002 WRX?
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This is a discussion on What is the best catless uppipe for a 2002 WRX? within the Engine Modifications forums, part of the Tech & Modifying & General Repairs category; I'm looking to start modding my '02 WRX and want some feedback on catless up-pipes. I've read through the "first ...

  1. #1
    Registered User 2002SubieWRX's Avatar
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    What is the best catless uppipe for a 2002 WRX?

    I'm looking to start modding my '02 WRX and want some feedback on catless up-pipes. I've read through the "first modifications" thread and many others and understand this is the most important first mod. What up-pipe do you all recommend without an EGT bung? I've heard good things about GrimmSpeed's unit, shown here:GrimmSpeed, but I want to know what others think.

    Currently the only "mods" on the car are a drop in K&N filter and Excedy stage 1 clutch and ACT Streetlite flywheel .

    Thanks for the assistance!
    Last edited by 2002SubieWRX; 08-08-2011 at 10:49 AM.
    - 2013 BRZ Limited, WRB, manual
    - 2002 WRX WRB Sport Wagon (Stage 1) SOLD
    - 1968 Mercury Cougar w/ custom 331ci stroker & 5-spd
    ~Best 1/4 mi ET: 13.00 Video here--> http://s55.photobucket.com/albums/g1...t=MVI_0378.mp4
    ~Best 1/4 mi Trap Speed: 109mph

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    Master Baiter EJ257's Avatar
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    Grimmspeed makes a nice uppipe.
    2005 WRX STi (Mods | Virtual Dyno)

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    imo perrin is the best quality wise grimmspeed and invidia are also good

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    Registered User patrick4588's Avatar
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    i doubt it will make too much difference. I suggest trying to find a used one to save some money.

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    Registered User 2002SubieWRX's Avatar
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    Well I broke down and ordered a GrimmSpeed ceramic coated uppipe with new GrimmSpeed gaskets (exhaust port to manifold, manifold to uppipe, uppipe to turbo and turbo to downpipe). Rallysportdirect.com sells the ceramic coated bungless unit for $175.99 and the same one on GrimmSpeed's website is $179.99 + $24.99 for ceramic coating. The gaskets were the exact same price at both sites, so I ordered from Rallysportdirect.com. Total came to $238.95 with free shipping on orders over $200.

    I'll write a quick follow up after I install it and give my first impressions. Thanks for the input everyone.
    - 2013 BRZ Limited, WRB, manual
    - 2002 WRX WRB Sport Wagon (Stage 1) SOLD
    - 1968 Mercury Cougar w/ custom 331ci stroker & 5-spd
    ~Best 1/4 mi ET: 13.00 Video here--> http://s55.photobucket.com/albums/g1...t=MVI_0378.mp4
    ~Best 1/4 mi Trap Speed: 109mph

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    Registered User patrick4588's Avatar
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    cool man, sounds like you got a good one!

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    ClubWRX.net Vendor adam@kronosperformance's Avatar
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    I've been through 2...Perrin and Ultimate Racing so I could have the EWG extension off of it. I would recommend both. If you're interested in getting a Perrin unit, let me know. I can get it for you under retail.
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    Registered User KnightFury's Avatar
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    i'v had two different types one invidia and one that i got off craigslist, not sure of the brand but has a flex pipe in it, i found while modding that the flex pipe is best way to go, you will experience more wear when modding and the flex pipe will allow well... more flexability other than DP another good investment is motor tranny mounts i have 03 and when i got the car w/ 70k they were almost toast and crated alot of movement in the engine bay

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    Registered User 2002SubieWRX's Avatar
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    Quote Originally Posted by KnightFury View Post
    i'v had two different types one invidia and one that i got off craigslist, not sure of the brand but has a flex pipe in it, i found while modding that the flex pipe is best way to go, you will experience more wear when modding and the flex pipe will allow well... more flexability other than DP another good investment is motor tranny mounts i have 03 and when i got the car w/ 70k they were almost toast and crated alot of movement in the engine bay
    I bought the GrimmSpeed unit which comes with the flex section. Thanks for the input. I'll take a look at the motor and tranny mounts when I'm under there hopefully Tuesday night if it shows up!
    Last edited by 2002SubieWRX; 06-10-2011 at 02:52 PM.
    - 2013 BRZ Limited, WRB, manual
    - 2002 WRX WRB Sport Wagon (Stage 1) SOLD
    - 1968 Mercury Cougar w/ custom 331ci stroker & 5-spd
    ~Best 1/4 mi ET: 13.00 Video here--> http://s55.photobucket.com/albums/g1...t=MVI_0378.mp4
    ~Best 1/4 mi Trap Speed: 109mph

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    ClubWRX.net Vendor adam@kronosperformance's Avatar
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    Quote Originally Posted by 2002SubieWRX View Post
    I bought the GrimmSpeed unit which comes with the flew section. Thanks for the input. I'll take a look at the motor and tranny mounts when I'm under there hopefully Tuesday night if it shows up!
    Good luck. If you need anything, let me know.
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    Registered User 2002SubieWRX's Avatar
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    Quote Originally Posted by KronosPerformance View Post
    Good luck. If you need anything, let me know.
    Will do thanks for the response. When did you open your online store? You've got some good products there.
    - 2013 BRZ Limited, WRB, manual
    - 2002 WRX WRB Sport Wagon (Stage 1) SOLD
    - 1968 Mercury Cougar w/ custom 331ci stroker & 5-spd
    ~Best 1/4 mi ET: 13.00 Video here--> http://s55.photobucket.com/albums/g1...t=MVI_0378.mp4
    ~Best 1/4 mi Trap Speed: 109mph

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    ClubWRX.net Vendor adam@kronosperformance's Avatar
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    Quote Originally Posted by 2002SubieWRX View Post
    Will do thanks for the response. When did you open your online store? You've got some good products there.
    I opened it up Monday actually so its very new and there are a lot of products I haven't put up yet. If you have any questions about anything that I have on there or may have, just let me know. Also, I'm all ears if you're looking for more advice on what do with your ride.
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    Registered User MrSweet's Avatar
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    Pair that with a Tial 38mm external wastegate dumping to atmo
    2007 SWP WRX - Blouch EVO III 16g'd - 320 WHP/330 TQ, tuned by Jorge @ P&L Motorsports
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    Always remember... life is short.

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    ClubWRX.net Vendor adam@kronosperformance's Avatar
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    Quote Originally Posted by MrSweet View Post
    Pair that with a Tial 38mm external wastegate dumping to atmo
    Thats what I do and I scare anyone who is willing to be in a 5 mile radius lol
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  16. #15
    Master Baiter EJ257's Avatar
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    Quote Originally Posted by MrSweet
    Pair that with a Tial 38mm external wastegate dumping to atmo
    Factor in the downpipe, boost controller (EBCS, MBC, or both), and custom tune, and you're looking at another $1000 or so.

    An extremely fun setup, none the less...
    2005 WRX STi (Mods | Virtual Dyno)

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