Engine/Power - EJ20T (pre-2006 WRX and JDM) There is replacement for displacement, it is forced induction - OEM 2.0 liter turbo engines in the USDM WRX. 90-94 Legacy Turbo EJ22 turbo engines can also be discussed here.

Helix Downpipe question

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Old Dec 21, 2004 | 12:29 PM
  #2  
chicote's Avatar
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From: NC
Car Info: 02 wrx wagon
I've got the helix. It removes both cats. I'm not sure about the PDE. I imagine that if you go back to stock for tests that you won't have to worry about the check engine fix. Just leave it in. No one would know the difference. Hope this helps.

ron
Old Dec 21, 2004 | 02:22 PM
  #4  
chicote's Avatar
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Car Info: 02 wrx wagon
I don't think so, unless they follow the wire all the way to where you splice in the resistor. I doubt they would do that.
Old Dec 23, 2004 | 11:29 AM
  #5  
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Car Info: 03 WRX
I have the helix up/dp and I wish I had a cat
Old Dec 23, 2004 | 05:03 PM
  #6  
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From: Dallas
Originally Posted by VIBEELEVEN
I have the helix up/dp and I wish I had a cat
Why do you wish you had a cat? Is it too loud? I was wondering how much louder my car would be with a catless downpipe, because i already have the APEXi N1 catback and it isn't loud enough for me
Old Dec 24, 2004 | 02:42 AM
  #7  
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From: el monte, ca
Car Info: 04 black wrx
Originally Posted by WikdRX
Why do you wish you had a cat? Is it too loud? I was wondering how much louder my car would be with a catless downpipe, because i already have the APEXi N1 catback and it isn't loud enough for me
if u go catless it'll be LOUD.

it's actually decently loud on my car(w/ evo), but i think N1's louder.

btw, get the helix, it's awesome.
Old Dec 24, 2004 | 07:50 AM
  #8  
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Mines not too loud, cause I still have the stock catback, the wattery eyes is what gets to me
Old Dec 24, 2004 | 09:06 AM
  #9  
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Car Info: 2016 Acura RDX ... meh. Um, nice subwoofer?
Catless w/ a hush is not bad at all... unless you're at WOT at high loads. It looks stock and it just sounds meaty.

jason
Old Jan 1, 2005 | 10:28 PM
  #10  
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Car Info: 1991 Toyota MR-2 Turbo
save some money and get the Helix. do a search for the mechanical cel fix (no splicing of wires) and you're good to go
Old Jan 2, 2005 | 01:08 PM
  #11  
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Car Info: My 2009 FIT for sale!!!!!!!!!!
Thumbs up go with the HELIX

i got the HELIX up/down pipe. its the greatest i EVER invested. if you are worried about noise, dont get this one. i like the turbo sound!
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