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Old 02-06-2005, 05:00 PM   #1
Scooby Newbie
Member#: 61202
Join Date: May 2004
Chapter/Region: TXIC
Location: Dallas, TX
2004 WRX Wagon
WR Blue

Question Help on Modifying Stock IC Splitter

What I am wanting to do is modify the stock splitter on my WRX to better work with the 04 Sti hood scoop I added. I would like to extend the metal piece so it come in contact with the inside of the scoop. Anybody done this before? What materials should I use and where should I get them? If you have measurements of how much I need to extend the piece by that would be very helpful.

I know what some of you are thingking, just get the Sti part and safe myself and lot of time. Problem is I still have the stock intercooler and would rather use the stock part since it fits around the intercooler and does not let air blow buy.

I also always like to have a back up piece, so does anybody know the part number for the stock work splitter piece? Thanks,
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Old 02-06-2005, 05:41 PM   #2
Scooby Guru
Member#: 70395
Join Date: Sep 2004
Chapter/Region: MAIC
Location: Da-boonies,Va

I just cut the top away from the sides until about 1/2 " from the bottom with a jigsaw and bent the whole top up about 2".Then i used some HVAC "silver"tape (not duct tape) to act as a filler in the side gaps.Just taped it on both sides,inside and out.The tape is thin,very strong,and very sticky.Works great on my STI scoop.
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Old 02-06-2005, 06:43 PM   #3
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Member#: 41049
Join Date: Aug 2003
Chapter/Region: South East
Location: Panama City FL (Tyndall AFB)
2010 Impreza WRX
KTM 250sx


I ordered the Zerosports "replica" splitter from MPJ. Nice stainless steel part but its 8 pounds! I drilled all the spot welds and took it all apart. I went to a local metal fabrication shop and had all the parts lazer cut in aluminum. With a brake press and tig welder I was able to recreate it. You could do the same with rivets instead of spot welds.
You can do like the above post and make it work but I wanted a OEM appearing part. You will need to cut a pie shape out of the sides to raise the rear part of the scoop and then make atleast one plate to direct air to the front 1/2 of the IC.Then rivet it together and even finish the pie cut with fiberglass mat. Depends on how far you want to go.
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Old 02-06-2005, 08:30 PM   #4
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Member#: 22412
Join Date: Aug 2002
Chapter/Region: SWIC
Location: Albuquerque, NM
2012 Legacy 2.5GT
Ice Silver Metallic


Watch eBay for the zerosports splitters - they turn up from time to time (I picked mine up for $100 brand new from Rennick Subaru, but it's for an 02/03 stock scoop) - the Zerosports ones weigh about the same as the stock splitter (mine did, anyway - surprisingly light) - the replicas appear to be much heavier (probably thicker gauge material).
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Old 02-07-2005, 01:13 AM   #5
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Join Date: Nov 2001
Chapter/Region: SCIC
Location: socal

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