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COBB Tuning Fuel Pressure Regulator Kit (Part Number: )
COBB Tuning Fuel Pressure Regulator Kit (Part Number: )
COBB Tuning Fuel Pressure Regulator Kit (Part Number: )
COBB Tuning Fuel Pressure Regulator Kit (Part Number: )
COBB Tuning Fuel Pressure Regulator Kit (Part Number: )
COBB Tuning Fuel Pressure Regulator Kit (Part Number: )
COBB Tuning Fuel Pressure Regulator Kit (Part Number: )
COBB Tuning Fuel Pressure Regulator Kit (Part Number: )
COBB Tuning Fuel Pressure Regulator Kit (Part Number: )
COBB Tuning Fuel Pressure Regulator Kit (Part Number: )
COBB Tuning Fuel Pressure Regulator Kit
Subaru STI 2008+
Read 3 Reviews | 12 Q&As
Part # 315200

In stock! Ships same day

Features & Product Details

Looking for a way to get rid of that annoying 2800 rpm stumble? COBB has the answer for you with the COBB Subaru STI Fuel Pressure Regulator Kit. It is a plug-and-play solution that is simple and very easy to install. It requires no cutting of OEM hoses. Make your drive a little less annoying for your car and yourself.

Tuning is required.


Brand: COBB Tuning
Adjustable: No
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.
RallySport Guarantee
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3 Reviews
4.3 out of 5 Stars
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Customer Photos and Videos
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Does what it says it will. 5 months ago
4out of 5stars

Performs as expected from a company like Cobb. Did require a tune after.
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Works great and stumble is gone 3 years ago
5out of 5stars

The latest version from Cobb uses an upgraded fuel line connector so you future removals are easier. Initial install still requires special tool and the one sold here at Rallysport works just fine. Before upgrade, Stage 1 left "I" mode so limp it was almost useless and "S" had flat spots all over between 2k and 3.5k. Directions from Cobb lacked some details but having the on-line directions right near you helped get thru the fuzzy portions.
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1 of 1 people found the following review helpful
So easy to install with the right tools!  3 years ago
4out of 5stars

Don't try to install this without the Subaru specific oil/fuel line disconnect tool. I tried to first install this with a crap $5 tool from autozone and had no luck (I also heard some yahoos on the internet that got the lines off with zip ties.. Yeah.. No). I bought the Company23 tool from RSD and the lines popped off without a hitch. Also.. One last thing that slowed me down; I have the Cobb flex fuel kit on my 13 STi so I didn't use the normal lines that came in the kit, I had to reuse one line from the flex fuel kit. In the FPR kit, the line running from the damper to the motor (the fuel line that's mated to the damper when you receive the kit from Cobb) was actually removed and you news to utilize the flex fuel kit fuel line that runs to your stock FPR damper (This fuel line on one end has a 90° elbow and uses a blue retaining clip(that mates with your flex fuel sensor body), not clear/opaque color like in the FPR kit. The other end of the fuel line is just a regular cut tube end with a clamp). Don't be cheap, buy the right damn tool and save yourself many hours of frustration.
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  • Q: 2017 Sti  Eulises27 days ago

    Would this work well if I were to purchase Cobb's FPR manifold relocation kit at the same time?
  • Q: Difference Between Kits  chris.ollenburg493512 months ago

    I'm considering purchasing the fuel upgrade package to fix the 2800 rpm stumble on my 2008 STi. However, I'd like to make sure I can upgrade to flex fuel in the future without having to repurchase any fuel lines or duplicate kits with minimal differences. What is difference in this kit versus which is included in the cobb fuel upgrade package versus the one provided by the cobb flex fuel package ( Also, why is this kit $25 more expensive? Flex Fuel Package I'm considering: Fuel System Package I'm considering: Thanks!
    • 0 of 0 people found the following answer helpful

      A:  This kit is meant to work with the OEM lines, the other kit you linked is for Cobb's rail/line kit.

      Marcus E. @ RallySport Direct 2 months ago  
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  • Q: Quick disconnect connectors are different  Vaughn9 months ago

    Why are the quick disconnect connectors in the kit I received completely different than those in the picture? Everything installed and doesn't appear to be leaking. Is this just an update to their kit? Please help!
  • Q: Install directions?  Vaughn1 year ago

    Looking for the install instructions on this before buying. Want to make sure this is something I can install.
    • 0 of 0 people found the following answer helpful

      A:  Cobb will have most of there install instructions on their website, Please see below

      Luis L. @ RallySport Direct 10 months ago  
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  • Q: Tuning...  Vaughn1 year ago

    Just curious, what exactly needs to be changed on the map to allow the safe usage of this? I've already got a tuner on my agenda but I've been wondering what exactly is being changed on the tune.