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GrimmSpeed Hood Scoop Splitter (Part Number: )
GrimmSpeed Hood Scoop Splitter (Part Number: )
GrimmSpeed Hood Scoop Splitter (Part Number: )
GrimmSpeed Hood Scoop Splitter (Part Number: )
GrimmSpeed Hood Scoop Splitter (Part Number: )
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GrimmSpeed Hood Scoop Splitter (Part Number: )
GrimmSpeed Hood Scoop Splitter (Part Number: )
GrimmSpeed Hood Scoop Splitter
Subaru w/ JDM STI Scoop WRX 2002-2003
Read 3 Reviews | 14 Q&As
Part # 093074

In stock! Ships same day

Features & Product Details

This is the Grimmspeed Top Mount Intercooler Hood Scoop Splitter. The main intention of this component is to provide better air surface coverage to the top mount intercooler. Although the factory splitter is functional, there will always be room for improvement and Grimmspeed knows how to make the most out of your factory top mount intercooler. 

If you purchased a vehicle that came with modifications, or if you plan on going down that path of modification, things like an upgraded exhaust, fuel injectors, larger turbo, basically anything else will push more heat through your top mount intercooler and you will experience heat soak beyond recovery. For example, if it's in the middle of summer and you're at the drag strip, it is not unusual to see air temperatures in excess of 400° entering your intercooler. For these reasons, people will typically upgrade to a larger top mount intercooler. But that's not always the right answer. Because if you're still employing the factory splitter setup then you are not getting optimal surface coverage.

Grimmspeed designed their splitter to increased the size of the opening by 70% which will work with an STI intercooler or a larger aftermarket top mount intercooler. Other features include redesigned vanes that direct air from your scoop down to the intercooler. Additionally, they have added features which include extra provisions that will allow up to 3 intercooler water sprayers to each splitter. These splitters have been CAD designed and have been tested with flow simulation prior to production. Extra air diversion vanes were added to the splitters where there was space to help evenly distribute the airflow. 

Weight was also the focus on the Grimmspeed Splitter. Rather than stainless steel, Grimmspeed opted for 20 gauge 5052 aluminum materials which drops the weight by 200% when compared to other aftermarket splitters. Flathead rivets were employed to keep the splitter together which offer the same joint stability without the need for welding which you risk breaking welds or cracking. Each splitter will come with a custom designed extrusion gasket which has been made with the same EPDM rubber materials as the OEM gasket for quality assurance. The splitter will also come pre-punched for split-shanked rivets and then molded with a 15° flare to provide a great seal without the worry of failing adhesive or worn rubber. 

This splitter has been powder-coated a nice black finish for extra protection against rust and corrosion and will come ready for the installation. 



Brand: GrimmSpeed
Color: Black
Installation Hardware Included: Reuses OEM
Material: Aluminum
Mfgr. Warranty: Lifetime
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.
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3 Reviews
4.7 out of 5 Stars
5 Stars
4 Stars
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GrimmSpeed Hood Scoop Splitter ( Part Number: 093074)
GrimmSpeed Hood Scoop Splitter ( Part Number: 093074)
Grimmspeed Splitter for my GC8 2 years ago
5out of 5stars

This product is very well constructed, and was the closest thing to the OEM hood scoop on a 2000 GC. The bolt holes don't line up of course so I had to make significant modifications which I knew going in. I'm pairing this with my Grimmspeed Top Mount Intercooler and sofar the fitment is working great for directing air into that guy.
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2 of 2 people found the following review helpful
Must have for a larger intercooler 5 years ago
5out of 5stars

Matched this up with a JDM STi scoop (2002 bugeye) and Grimmspeed TMIC. Works as it should, fitment is snug, much better than the stock shroud at dispersing air over the entire intercooler.
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Looks great, works better than a stock WRX splitter 5 years ago
4out of 5stars

I like the GS splitter, but have doubts about the longevity of the shrouding material. It's flimsy and I will be amazed if it lasts through Oklahoma summer heat. That said, so far it's doing a great job piping air down onto my STi IC. I also have the JDM scoop, and the three items together (Scoop, splitter, IC) make for some real butt-dyno gains.
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  • Q: 2002 WRX with EJ25 swap  acastro166973532 months ago

    I was planning on throwing this along with the grimmspeed TMIC on a 2.5 swapped WRX which has the JDM scoop. I was wondering if this was the correct combination of parts and if the TMIC lines up the same?
  • Q: fitment  newb9 months ago

    will this work with both 02-03 sti hood scoop and 04-05 sti hood scoops?
  • Q: 02 wrx w/ stock tmic  rdelgado3 years ago

    will this splitter fit fine if you are running the oem tmic? Or is it mainly for upgraded tmic's?
    • 0 of 0 people found the following answer helpful

      A:  This is designed for Grimmspeed's intercooler and we have not confirmed fitment with the OEM tmic. There is likely going to be some gap.

      Nick S. @ RallySport Direct 3 years ago  
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  • Q: Fitment on a Forester  Pritchard_07FXT4 years ago

    I have a 2007 Forester XT with the 02-03 JDM STi good scoop, paired with a 2007 STI tmic. My question is, will this splitter fit the forester XT hood? There's a Process West one that says for Forester XT with JDM scoop, but if both the 02-03 wrx use the same scoops and have the same tmic, this GrimmSpeed one should fit? Thanks!
    • 0 of 0 people found the following answer helpful

      A:  If you have the JDM 02-03 hood scoop, then this splitter should work for your application, however we cannot guarantee fitment.

      Zach G. @ RallySport Direct 4 years ago  
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  • Q: 02 bugeye  Dayton4 years ago

    I was wondering if this shroud will work with the stock hoodscoop until I can get the jdm sti hoodscoop.
    • 0 of 0 people found the following answer helpful

      A:  We cannot confirm fitment and have never tested it to fit. We recommend purchasing the correct shroud for your hood scoop if needed.

      Nick S. @ RallySport Direct 4 years ago  
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