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.

STI exhaust vs Cat-back

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Old Dec 2, 2003 | 02:08 PM
  #1  
hockeygod's Avatar
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Joined: Nov 2003
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From: Livermore
Car Info: 2004 WRB WRX
STI exhaust vs Cat-back

Well since im having warrenty concerns like others on this board im curious how much better is an aftermarket cat-back exhaust vs a dealer sponsered STI exhaust. Is the cat-back that much better? (This excludes turbo-back)
Old Dec 2, 2003 | 02:24 PM
  #2  
Daredevil's Avatar
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From: at the track
dunno how much a catback just alone helps, prolly a few HP and some sound
im selling an STi axle back.. 200 + shipping if your interested
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