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.

JIC Titanium

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Old Dec 30, 2003 | 08:53 PM
  #1  
gordy's Avatar
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Car Info: '03 WRX WRB
JIC Titanium

I ordered a JIC titanium catback. I want to replace the downpipe cats with a single high flow cat, and am wondering if anybody here has done this and if so what dp they used.

My questions are:
1) what dp's are available using the bellmouth design with an integrated highflow cat?
2) the JIC will bolt up to the stock dp, does that mean I won't see much power gain since the width of the pipe at the dp would be limited to whatever the stock width is?
3) if my assumption from 2 is correct what can I do about it?
4) should I just hang'em out there and go catless??
Old Dec 30, 2003 | 09:34 PM
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From: at the track
1)turbo xs stealth? back?
2)whats the diameter of the catback piping?
3) nothing really...
4) go catless helix down pipe baby + helix up pipe
Old Dec 31, 2003 | 05:00 PM
  #3  
sigma pi's Avatar
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Car Info: 03 Impreza WRX
catless is cool i have that and you can hear the turbo really well
Old Dec 31, 2003 | 05:02 PM
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I decided im gunna go catless.. no smog til 2008 or something, and really I couldn't find a one peice bellmouth dp with integrated high flow cat.

Just hope the helix dp fits up with the jic nicely
Old Dec 31, 2003 | 09:18 PM
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why just have one cat? getting rid of any of the cats will not make you smog legal
Old Jan 1, 2004 | 11:54 PM
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Originally posted by WindingRoad
why just have one cat? getting rid of any of the cats will not make you smog legal
I came to that same conclusion, so I'm just going to go catless.

Does anybody know for sure if I will need a JDM downpipe for the JIC catback?
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