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Process West Hood Scoop Splitter (Part Number: )
Process West Hood Scoop Splitter (Part Number: )
Process West Hood Scoop Splitter (Part Number: )
Process West Hood Scoop Splitter (Part Number: )
Process West Hood Scoop Splitter
Subaru WRX 2004-2007 / STI 2006-2007
Read 5 Reviews | 3 Q&As
Part # PWSP04

In stock! Ships same day

Features & Product Details

A common error that many people make when upgrading their intercooler is not installing a properly sized splitter. The benefit of a larger intercooler is that the large surface area can rapidly disperse heat. However when a small or stock splitter is in place, the intercooler's effective surface area is drastically reduced.

Another mistake is to completely eliminate the splitter. By doing this you allow the air to escape around the intercooler instead of going through the core. The lack of air flowing through the core will cause the intercooler to heat up, making the intake charge even warmer and reducing power.

The solution is the large Process West intercooler splitter, which forms a complete seal around the intercooler, forcing cooling air through the core, lowering charge temps and increasing power.

This splitter is designed specifically for the Process West Top Mount Intercooler. This unit may work with other brands of intercoolers, but we are not able to confirm fitment!


Brand: Process West
Color: Black
Installation Hardware Included: Reuses OEM
Material: Steel
Mfgr. Warranty: 1 Year
Condition: New Product
Return Policy:

RallySport Guarantee - 30 Days

Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.



5 Reviews
4.6 out of 5 Stars
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Customer Photos and Videos
No user media. You can upload a photo or video of your install by posting a review.
Poor coating 4 years ago
My car is garaged year round. In about a 12 month period you will notice the edges starting to rust and the rest of the surface will start blistering and chipping away. My advice is to remove the rubber moldings, I believe they trap moisture. Im in the process of having it sandblasted and powdercoated silver.
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1 of 1 people found the following review helpful
Excellent 6 years ago
Is a ver nice product, it is very easy to install. Took about five minutes with the oem bolts. It looks really strong under the hood and the finish is perfect.
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1 of 1 people found the following review helpful
Hood Scoop Splitter 7 years ago
Very pleased with this product. Simple installation and really channels air down over the TMIC. Just make sure you have the larger STI hood scoop as this is a tight fit. Thanks Process West!
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Process West Hood Scoop Splitter 7 years ago
Awesome Product... very easy to install... n fit perfectly on my process west TMIC.... I am very satisfied with it and I would recommend it to anyone.
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perfect fit 8 years ago
I have a 2004 wrx with a STI TMIC, and this splitter has been one of the few parts I have bought for my car that actually fit the way it was supposed to fit right out of the box. I am very satisfied with it and I would recommend it to anyone.
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  • Q: Use with other TMIC  curtisr4014 years ago

    Has anyone tried using this splitter with an AMR TMIC?
  • Q: stock i/c  L&H 06 19296 years ago

    Do you know if this splitter would fit a stock i/c ? and if so would it help air flow enough to warrant a purchase. Thnx in advance
    • 0 of 0 people found the following answer helpful

      A:  This splitter is designed to work the Process West intercooler and will not seal properly to the stock top mount, therefore it would be a downgrade with a stock intercooler.

      Zach G. @ RallySport Direct 6 years ago  
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  • Q: splitter  aockenden170157 years ago

    I have been waiting for the wrx Process West hood splitter for an 06 TR for over a month. Will an STI Process West splitter fit on my wrx hood? I have upgraded the intercooler to a turboxs. Let me know, Thanks!
    • 1 of 1 people found the following answer helpful

      A:  The splitter of the 2006-2007 STi would fit on a 2006-2007 WRX as the hood scoops are the same. Only thing we can not confirm is if it will work with your TurboXS top mount, as these are designed to be working specifically with the ProcessWest Top Mount. We know people have used them with other brands, however we just cant confirm it.

      Kirill C. @ RallySport Direct 7 years ago  
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    • 0 of 0 people found the following answer helpful

      A:  It will work with TurboXS top mount. Thats the setup I am currently running. Only thing I had to do was slightly bend the IC mounting brackets down about a quarter of an inch so there wasn't so much pressure on the splitter.

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