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COBB Tuning Downpipe Catted Bellmouth
Subaru WRX 2008-2014 / STI 2008+ / Forester XT 2009-2013
Features & Product Details
RallySport Direct is proud to provide you with quality performance and racing products brought to you by COBB Tuning.
On this page, you are looking at the COBB Tuning Catted Bellmouth Downpipe. This is a great upgrade because it combines smooth bends and a larger piping diameter which will result in an improved throttle response, reduced turbo lag, increase in both horsepower and torque, all while providing an aggressive exhaust note.
Here are the key features:
Note that this downpipe will require a tune to maximize the full performance potential.
Specifications
Brand:
COBB Tuning
Includes Catalytic Converter:
Yes
Installation Hardware Included:
No
Mouth Design:
Bellmouth
Piping Coating:
No
Piping Flex Joint:
No
Piping ID:
3.00in
Piping Material:
304 Stainless Steel
Piping Taper:
Yes
Tuning Required:
Yes
Mfgr. Warranty:
1 Year
Condition:
New Product
Return Policy:
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
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.
WARNING: This product contains chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm.
PEOPLE WHO VIEWED THIS ITEM ALSO VIEWED
REVIEWS & CUSTOMER MEDIA
Customer Photos and Videos
Qrz
Installed the COBB down pipe along with the Invidia Q300 catback exhaust, tuned with COBB accessport stage 2+ SF. Took a little time to find all the screws to the stock heat shield. Other than that everything else was pretty straight forward. Loving the sound and performance of the new exhaust. Definitely recommend this product.
1 of 1 people found the following review helpful
Wrx2014hatch
When first pulling it out of the box you can really see the craftmanship that went into making it the price it is, and why it’s a high seller. When comparing it to the stock downpipe you can really see how much the stock one restricts the flow. The diameter is significantly bigger, and the material and quality is far more. The install process takes time, but isn’t frustrating as long as you have the proper tools and setup for the job. I’d definitely recommend buying extra screws however, gasket, donut ring. You can definitely hear a change in the tone(deeper) and throatiness compared to having just a catback(Cobb) setup. It’s not much louder, but does give it a slight increase in the two I just mentioned. It sounds great when you really get on it, and gives off more pops when both up and down shifting. When flashing to the stage two tune you can definitely see a performance gain as it pulls harder in each gear and puts down more boost. I really enjoyed the car a lot more around twisty hilly roads. The power was there when you needed it. I’d say it’s well worth the upgrade
Bill Nye the STI guy
This downpipe is really nice. I got a recommendation from my tuner at first because I was not too familiar with the pros and cons of bellmouth downpipes vs divorced wastegate downpipes, and still being on the factory turbo with the internal wastegate, I opted to go with the bellmouth style. I added this along with an Invidia N1 Race catback, and I must say I'm loving the sound. Not raspy at all, and has a nice deep rumble. You can even hear the turbo in the exhaust as well. Not only that, but having had the Cobb SF intake and airbox already, I feel like this added a little extra BPV noise. Having switched from the stage 1+ map to the stage 2+ map, I have seen an improvement of over .3 seconds in trap times in the quarter mile, and feel a very nice improvement in power and torque. Overall install was easy. The worst part is fighting with rubber exhaust hangers. But after a little soapy water, everything hooks up easy. Fitment is perfect, and the only bit of advice I have is dont forget to re-torque the exhaust bolts after it's been driven. Oh. And another thing, when the other reviews say that the factory downpipe is restrictive, thats an understatement. This downpipe is very obviously less restrictive to the naked eye, and has a very nice increase in pipe diameter. I would also just recommend to purchase a new turbo - to - downpipe gasket as well, because when i took mine off it was obviously worse for wear. But yeah. 100% recommend this Cobb Catted Bellmouth Downpipe.
Bill Nye the STI guy
This downpipe is really nice. I got a recommendation from my tuner at first because I was not too familiar with the pros and cons of bellmouth downpipes vs divorced wastegate downpipes, and still being on the factory turbo with the internal wastegate, I opted to go with the bellmouth style. I added this along with an Invidia N1 Race catback, and I must say I'm loving the sound. Not raspy at all, and has a nice deep rumble. You can even hear the turbo in the exhaust as well. Not only that, but having had the Cobb SF intake and airbox already, I feel like this added a little extra BPV noise. Having switched from the stage 1+ map to the stage 2+ map, I have seen an improvement of over .3 seconds in trap times in the quarter mile, and feel a very nice improvement in power and torque. Overall install was easy. The worst part is fighting with rubber exhaust hangers. But after a little soapy water, everything hooks up easy. Fitment is perfect, and the only bit of advice I have is dont forget to re-torque the exhaust bolts after it's been driven. Oh. And another thing, when the other reviews say that the factory downpipe is restrictive, thats an understatement. This downpipe is very obviously less restrictive to the naked eye, and has a very nice increase in pipe diameter. I would also just recommend to purchase a new turbo - to - downpipe gasket as well, because when i took mine off it was obviously worse for wear. But yeah. 100% recommend this Cobb Catted Bellmouth Downpipe.
Twobicycle
This is probably the best thing i have done to my car besides the AP. The stock DP is highly restrictive and this pipe with the Grimmspeed heat-shield went in easy as hell. I am currently running the DP to my stock exhaust (besides the axel back exhaust) and loving every dollar i spent. Highly recommend this to everyone.
QUESTIONS & ANSWERS
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Q: Cobb downpipe to a tomei Melvin sti5 days ago
I have a 2011 Sti has a Cobb downpipe how do I make the tomei fit with no leaks?? Any help?
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0 of 0 people found the following answer helpful
A: You would need a oem downpipe to 3" catback adapter and a new donut gasket.
Devan M. @ RallySport Direct 4 days agoWas this answer helpful?
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0 of 0 people found the following answer helpful
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Q: Bolt up to Borla? U.K.3 months ago
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0 of 0 people found the following answer helpful
A: Unfortunately, you would need an adapter, and you should not need to upgrade your clutch.
Devan M. @ RallySport Direct 3 months agoWas this answer helpful? -
0 of 0 people found the following answer helpful
A: Should I use the Invidia instead? Or would that need an adapter, too? Is this adapter something a standard exhaust shop would have?
U.K. @Was this answer helpful?
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0 of 0 people found the following answer helpful
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Q: Fitment Dominus3 months ago
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0 of 0 people found the following answer helpful
A: The downpipe tapers down to a 2.5" so it will not fit and unfortunately, we do not sell a downpipe with 2.75" diameter.
Devan M. @ RallySport Direct 3 months agoWas this answer helpful?
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0 of 0 people found the following answer helpful
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Q: Fitment Sti22773 months ago
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0 of 0 people found the following answer helpful
A: We cannot confirm fitment on the catback to downpipe, therefore we cannot answer the rest of the questions.
Devan M. @ RallySport Direct 3 months agoWas this answer helpful?
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0 of 0 people found the following answer helpful
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Q: Cobb dp to invidia r400 G3 months ago
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0 of 0 people found the following answer helpful
A: They will bolt up, but since the Cobb uses an OEM style flange, you'll want to use a OEM downpipe to 3 inch catback adapter to prevent exhaust leaks.
Marcus E. @ RallySport Direct 3 months agoWas this answer helpful?
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0 of 0 people found the following answer helpful
