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04 MCS JCW Upgrade???

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Old Oct 9, 2007 | 11:20 AM
  #1  
Ammomac's Avatar
Ammomac
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04 MCS JCW Upgrade???

Morning All, we recently picked up an 04 MCS with the JCW kit installed. after a bit of poking around, am I correct in thinking that there is an upgrade to the basic kit that was offered in 04?

Thanks, Mac
 
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Old Oct 9, 2007 | 12:04 PM
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From: Tsunami Zone
The JCW Upgrade (198hp to 207hp) Kit became available in November 2004. The Kit (pn 11-12-0-395-131) includes "a redesigned air box with an electronically-controlled air induction system, a set of higher flow fuel injectors and a reprogrammed electronic control unit". Last I heard the list price was $560 and installation was 1.5 hours.
 
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Old Oct 9, 2007 | 01:21 PM
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is there a quick or simple way of telling if I have the basic JCW kit or if the previous owner also did the upgrade?
 
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Old Oct 9, 2007 | 01:52 PM
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From: Tsunami Zone
The air box is easy to identify:



The larger injectors are blue but hidden:



If the Upgrade Kit was dealer installed, you should be able to call any dealer and have them confirm it using your VIN.
 
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Old Feb 25, 2008 | 10:24 PM
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I'm looking @ picking up an 04 MCS JCW with an Alta CAI. Aside from the injectors and the ECU reprogram, what else can I do to increase engine performance?
 
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Old Feb 26, 2008 | 12:54 AM
  #6  
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roaduscarnivorous
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From: bay area
Originally Posted by 02Doooce
I'm looking @ picking up an 04 MCS JCW with an Alta CAI. Aside from the injectors and the ECU reprogram, what else can I do to increase engine performance?
install the rocket booster upgrade kit
 
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