Engine/Power - EJ25T (STI and 2006+ WRX) Discussions about the USDM 2006+ WRX and WRX STi 2.5 liter turbo flat-four.

Divorced or Bellmouth?

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Old May 18, 2007 | 11:15 PM
  #1  
A170123W's Avatar
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From: San Francisco
Car Info: 2007 Subaru Impreza WRX STi
Divorced or Bellmouth?

ARRRGgG!!! I can't seem to decide what kind of downpipe to get, maybe you guys can help me make up my mind.

1. Invidia Divorced DP
2. Invidia Bellmouth DP

HELP ME CHOOSE!!! Thanks!
Old May 21, 2007 | 02:11 PM
  #2  
Ballz's Avatar
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Car Info: 13 Taco Double Cab 4x4/ 71 Datsun 510
Invidia Bellmouth DP
Old May 22, 2007 | 08:14 AM
  #3  
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From: Santa Cruz, CA
Car Info: 2006 WRX TR
Divorced...better low end torque
Old May 22, 2007 | 12:56 PM
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keep em coming, thanks guys!
Old May 22, 2007 | 02:04 PM
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Car Info: 02 WRX Wagon, 14 Forester XT, 96 Miata
Divorced.
Old May 22, 2007 | 06:16 PM
  #6  
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Car Info: 06' Subaru IMPREZA WRX FP18g
Devorce, less turbulance..better boost control..more power
Old May 23, 2007 | 05:12 PM
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deeforced
Old May 24, 2007 | 05:43 PM
  #8  
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From: www.vividracing.com
Car Info: STI 2007
make a bastard step child and go divorced.
You can think of it as getting as close as possible to using an external wastegate as the waste gate gets its own personal path outa the turbo.
Old Jun 19, 2007 | 03:35 PM
  #9  
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From: New England
Car Info: 2006 Impreza WRX LTD
divorced runs no risk of boost spike or boost creep? im a little confused because of something i read a few months back which said bellmouth is safer, because it runs no risk of too much pressure before the downpipe. this to my understaqnding would be known as boost creep. for the record i have AP 2.0 stage 1 reflash with an RSR catback (catless) and i am ordering my downpipe and eibach sportline springs as a package !! so i am in need of knowing this info sooner the better
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