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2007-2013 Mazdaspeed 3 Downpipe

Price: $349.99
Price in points: What are Points?350 points
The only divorced Mazdaspeed 3 downpipe on the market
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Get maximum turbo performance and dramatically increase torque with the Mazdaspeed 3 Power Series Downpipe. The CorkSport Mazdaspeed3 downpipe was expertly designed to replace the restrictive element in the Mazdaspeed 3 stock downpipe

The CorkSport Advantage

CorkSport 80mm or 65mm Flange Choices

Fitment Choices:

Pick the 65mm flange for stock fitment (it will also work with all aftermarket exhausts), or 80mm flange for the CorkSport Cat Back exhaust and true 3" piping. Either way, mandrel bent piping is used to create smooth exhaust flow for dramatic increases in power.

CorkSport Downpipe and Intake Dyno Chart

Improved Power:

With just an intake installed, you can gain up to 50 HP more by adding the long catted downpipe or short downpipe and race pipe.

CorkSport Short Catless Downpipe

CorkSport Short Downpipe:

Replaces just the downpipe section but not the racepipe for a cost-effective solution that works with the stock racepipe, or aftermarket. For lasting corrosion resistance and reduced heat transfer to the engine bay, the CorkSport MS3 downpipe uses polished 304 stainless steel and features TIG welds that offer superior arc and weld puddle control for a cleaner appearance and precise weld bead control

Mazdaspeed 3 Downpipe with 3-inch with bell mouth

CorkSport V2 Long Catted Downpipe

Our long downpipes now use our new “modular” system to improve flow, enhance fitment, and simplify installation in your MS3 engine bay. The design utilizes a cast stainless steel bellmouth with a v-band connection to 3” stainless steel piping. A 300 CEL high-flow cat is included to help keep emissions in check with minimal drawbacks. The long downpipe replaces both the OEM downpipe and racepipe sections.

Additional Features

  • Remove exhaust flow restriction: by replacing the single most restrictive element of the exhaust, the downpipe
  • 304 stainless steel piping: for corrosion resistance and reduced heat transfer
  • Mandrel bent: for a smooth exhaust flow and solid power increases
  • Fitment:2007-2009 Mazdaspeed 3,2010-2013 Mazdaspeed 3
  • TIG welds: for a stronger more seamless connection
  • CorkSport Service and Support: Receive a 2-year warranty, full-color installation instructions, all of the needed installation hardware, and knowledgeable telephone installation support

Product Advisory Note
  • For off-road & race use only.
  • HPFP upgrade and tuning required for proper and safe operation.
  • A check engine light (CEL) will be illuminated on catless and some catted setups as a result of installation.
  • Take note of your catback exhaust size before ordering if ordering the long catted downpipe. There is a different downpipe whether you have a 3-inch/80mm exhaust or an OEM/2.5” exhaust.
    • AXL-6-114-18 Fits Cat-Back Exhausts like the CS 80mm and other 3” exhausts that use the OEM style flange.
    • AXL-6-114-19 Fits Cat-Back Exhausts like the OEM and other 2.5” exhausts that use the OEM style flange. It also fits 3-inch and 80-mm exhausts but with a flow restriction.
  • Only fits on turbochargers with OEM downpipe flange shape.
  • If you are ordering the long-catted DP and have a CS turbo with an EWG off the turbine housing, the wastegate will need to be moved to the turbine housing directly, and a new dump tube used. CS part number GEN-6-575-17 is needed and it is available for purchase HERE.

How To Install the Mazdaspeed 3 Downpipe

It will take you Approx. 5 hours to install.

5 hour Install Time

5 hour Install Time

Difficulty: 4/5

4/5 Difficulty

2-Year Warranty

2-Year Warranty



Short Catless Downpipe

Installation instructions for the short downpipe

Long Catted Downpipe

Installation instructions for the long downpipe

Freaking love this downpipe, by far the best exhaust mod you can do. I have the cts4 and it makes it spool up to 23 psi at 3200 rpm. Amazing product that works very well also sounds amazing, you can really hear the MZR scream.
Very easy install had it in and less than an hour sounds amazing. Decided to give this design a try to back up my cst4.
Just installed this a couple days ago and I absolutely love it! Taking out the old downpipe is a royal pain in the ass, though. Took about 6 hours to get that out and an hour to get the new one in. I'd recommend taking the downpipe studs out of the turbo cuz it makes disassembly and reassembly much easier without them there. Also, you don't have to take off the OEM downpipe heatshield to get it off but lemme tell you it's gonna fight hard the whole way out. I couldn't get mine off because the bolts were so rusted the wrenches destroyed the heads of them.

Once I got this bad boy on I could immediately notice the gains in hp and tq without any tune on the car. Would highly recommend the 80mm even with OEM catback, the seal is near perfect with no exhaust leaks.
Great job corksport!
Excellent downpipe! After removing the stock DP it was simple to install and fit great. Love the fact that it's the only divorced downpipe on the market for the MS3. Got the catless downpipe to compliment my Corksport racepipe and catback and my 2013 Mazdaspeed3 loves it! Great price for a great product! Thanks Corksport!
Love this downpipe. From the minute you open the box you can tell its a quality piece. Install did take a while but it wasn't as difficult as I was lead to believe. Me and a buddy did the install in my garage with the front of the car on stands. Definitely keep a can of PB Blaster handy though. If you're installing on a Gen2 do yourself a favor and remove the O2 bung extension from the 2nd O2 bung. It pushes the sensor too far out of the exhaust stream causing a code. I've had no issues after removing the the extension. Thanks again CS!
Amazing Product! If any of you are thinking about what fitment to get with the catted DP and plan to go CPE just get the 80mm and save yourself the trouble. 80mm will still bolt to the stock CBE with an adapter. If you in fact do go 65mm make sure that when you buy your CBE that they send you the adapter to make sure you CBE has the correct fitment. As I was just gonna do DP and run the stock CPE for the stealth look so I went with the 65mm but with these winter storms and the dumb ass snow plows dropping of metal shrouds in the road I poke a pretty big hole in my stock mid pipe. So I was forced to go CBE. I know I could have just got a new mid pipe but really who does that?? So when I got my CPE it did not include the adapter so fitment was an issue as it rubbed at the first bend as it sat damn near right on the exhaust sheild. Vincent and Spencer took great care of me in a very fast time spand and quickly we fixed the issue with the correct adapter and doughnut. The gains you will receive from the DP are great add the CPE and a tune.. Forget about it.. Love CorkSport
Recently had my car dynoed and talked to the guys about installing the catless DP, they mentioned the non-foulers to prevent the CEL, as I was reading you guys said to install a new high flow fuel pump, my car was running really rich when it was ran on the dyno, I know a tune will help fix the problem but being what it is would a new fuel pump be necessary after the instal of the DP?
For all of you worrying about a cel with the catless downpipe, go to your local hardware or autoparts store, but a set of 2 spark plug non-foulers, use a half inch drill bit to drill out one while leaving the other the way it is. Screw the drilled out non-fouler into the one you left be, then screw your o2 into it ajd install in your downpipe. This will keep you from throwing a code. Reason being, the second o2 is narrowband, and cannot have exhaust gas flowing freely over it. The non fouler has a small hole that only lets a small, steady flow of exhaust flow to it, just like as if it was in the cat. Its a 2 dollar fix and I guarantee it to work every time. 60k miles in my evo 9, 80k miles in my eclipse gsx, and 4k my ms3, all with this simple mod, and none have ever thrown a cel code.

Happy modding!
Awesome dp. Just be ready for a lot of cussing getting the stock dp out. What a pain in the a$$.. installing the corksport dp was a cinch after that. Took me half a day just to pull the stock dp. Took about 1 hour to install cs dp.
Write a review

Hello can we use with stock k04? Or it’s better if we let the 1st cata and we remove the second ?

Asked by Anthony | 12/25/2022, 06:07 PM | 1 answer(s)

I have a 2009 'Speed3-Will the short pipe (downpipe only) trigger a CEL? Will I require a tune after installing it? Plan on using stock racepipe (has stock cat). Will I be required to use aftermarket hpfp? Thanks for the help.

Asked by Thomas | 02/05/2022, 02:49 PM | 1 answer(s)

Is it a good idea to heatwrap the downpipe before installing?

Asked by Bradley Kistler | 12/29/2021, 09:20 AM | 1 answer(s)

I'm having a hard time visualizing the size and shape of 5-bolt flanges. Would this fit on a GT2860RS?

Asked by Raymond Harper | 11/11/2021, 02:01 PM | 1 answer(s)

What'll it take to fit one of these on a gen 2 mazdaslow 3 i?

Asked by Caiou | 02/20/2021, 02:16 PM | 1 answer(s)

Does the long pipe have 2 cats on it? You mention it comes with your race pipe but I see the flexible mesh which isn't on the race pipe I found on your website. I only really want a catted downpipe and a cattless race pipe. Thanks!

Asked by Dylan Nightingale | 03/18/2021, 10:03 AM | 1 answer(s)

Will the Divorced catted downpipe fit a cst4?

Asked by Alexander Arencibia | 01/29/2021, 10:32 PM | 1 answer(s)

I need a new downpipe for my 2008 Mazdaspeed 3 the one currently in my car is beginning to fail. Which should I get if all I need is the downpipe it self?

Asked by Caleb | 06/08/2020, 01:41 PM | 1 answer(s)

Will the 60mm catted downpipe work with cobb catback exhaust for gen 2 mazdaspeed or I need to get the 80mm.

Asked by Pa Yang | 03/15/2020, 06:44 AM | 1 answer(s)

Will the 80mm long down pipe fit onto the oem exhaust?

Asked by Cory Hill | 11/24/2018, 12:19 AM | 2 answer(s)

Does this Downpipe fit both the BL and BK models?

Asked by Adem S | 04/30/2019, 05:46 AM | 1 answer(s)

I have a corksport catback exhaust and now i want a long catted downpipe I was wondering what size flange should I get 65mm or 80mm?

Asked by Randy Lopez | 03/01/2019, 09:58 PM | 1 answer(s)

Hello. I have a cp-e triton catback exhaust system and was wondering what size flange I would need to mate the corksport long catted downpipe to it. The 65mm or the 80mm?

Asked by Josh | 02/27/2019, 04:57 PM | 1 answer(s)

If I run the BNR S4 V3 with this downpipe, is it possible that I see any issues with the wastegate flapper making contact with any part of the downpipe? I've seen very mixed things online and can't find consensus anywhere.

Asked by Brett | 09/28/2018, 02:05 PM | 1 answer(s)

I want to get the long down pipe with the high flow cat, but I fant afford the CBE right now. What do I need to hook it up to the stock exhaust on the gen 2?

Asked by Chris | 05/24/2018, 09:08 PM | 1 answer(s)

Would it be safe to run the catted downpipe, fuel pump internals, and FMIC that I purchase from you guys without a tune? Or do I need a tune if I am only looking to upgrade these components?

Asked by Fabian | 04/08/2018, 03:32 PM | 0 answer(s)

Hello! I currently have the COBB Catback Exhaust but once i found you guys I have pretty much been a Corksport only fan, my question is will your downpipe work okay with the COBB catback?

Asked by Dillon Rice | 12/02/2017, 05:24 AM | 1 answer(s)

Will the long catted downpipe bolt up to a CNT cat back exhaust?

Asked by Nick | 01/23/2018, 12:36 PM | 1 answer(s)

I recently purchased the hatless downpipes and racepipe that bolts onto the stock exhaust my question is how many exhaust donuts do I need to order. I know I need one donut for my racepipe but on your instructions for the downpipes it says I need to purchase 2 but don't see were the second one goes only were the first one goes witch is attache to the end of the downpipe.

Asked by Raul | 10/14/2017, 08:33 PM | 1 answer(s)

Since I am using the stock catback exhaust and am getting the 65mm downpipe if I were to purchase the corksport catback at a later date would I have to repurchase the downpipe or will the 65mm one still bolt up to the corksport catback exhaust?

Asked by Evan | 07/21/2017, 05:32 AM | 1 answer(s)

Is there a significance in power between the 65mm long catted and 80mm long catted? Will the 80mm bolt fine with the stock cbe?

Asked by Jason | 10/24/2016, 10:49 PM | 1 answer(s)

Hi, i have a full stock exaust can i juste change the SHORT downpipe only ? Does The SHORT downpipe can be fixed with à STOCK ricepipe ? Thx for your answer

Asked by Antoine | 11/26/2016, 12:09 AM | 1 answer(s)

I plan on purchasing this high flow catted downpipe for my car but im worried about the exhaust smells might be annoying. When I bought the racepipe, didn't notice no exhaust smell but I mean none but since this dp replaces a high cell cat with a low cell cat, that's why my concern.

Asked by Eliezer Perez | 12/03/2016, 07:54 PM | 0 answer(s)

Hi, On your short Downpipe for mazdaspeed 3 2007, how many 02 sensors has got your short downpipe ??

Asked by Antoine | 11/16/2016, 06:12 AM | 2 answer(s)

Which would i need with the Ultimate Racing Catback exhaust, the 65mm or 80mm?

Asked by Paul Shaver | 08/05/2016, 07:36 AM | 1 answer(s)

Does it require a tune if I run your high-flow cat? I have your stage II full intake and fuel pump internals.

Asked by AZG | 06/11/2016, 01:32 PM | 1 answer(s)

I'm looking to go stage 2. How much power will I lose by mounting this to stock exhaust instead of a full exhaust. I would be using the catted option

Asked by Kyle Croutch | 06/02/2016, 06:56 PM | 1 answer(s)

Good morning CS. I have 2 questions. I currently have a Cobb SS 3" Catback installed on my Gen 2 MS3. Which DP do I need. The 65mm or the 80mm fitment. And second, do you currently have the one that I would need in stock? The last time I ordered a Catback and it was on back order for 3 months. Thanks guys.

Asked by Brendan | 05/13/2016, 01:00 PM | 1 answer(s)

I currently livehave the long catted downpipe on my 2008 gen. I just bought a 2010 gen2 can i use my old downpipe on my new car? Thanks again great part.

Asked by Sherwin | 03/30/2016, 08:25 PM | 1 answer(s)

Where do you get your ots maps for the accessport?

Asked by Keith | 03/11/2016, 10:23 AM | 1 answer(s)

im interested in the down pipe for my ms3 but my only thing that is holding me back is if will it pass maryland emissions? i have looked around if anyone around had passed but never got a straight answer.

Asked by Manuel Angel | 02/21/2016, 10:21 PM | 1 answer(s)

Would the non catted downpipe fit the 80mm if I soon bought the race pipe and mid pipe

Asked by Tarango | 02/03/2016, 11:57 AM | 1 answer(s)

I'm getting the hpfp and I'm fully stock besides the ap and fuel pump. Well would I have to run a certain stage 1 map or do I go straight to the stage 2. Any map recommendations

Asked by Caezar | 02/03/2016, 11:53 AM | 1 answer(s)

Would my engine be okay with the dp of I didn't get the upgraded fuel pump

Asked by Caezar Tarango | 11/02/2015, 08:32 PM | 1 answer(s)

How loud is the car/do you get drone on the highway when you have an intake, fuel pump, and the long down pipe installed? It is my understanding that the CBE would mostly change the loudness Thanks, Eric

Asked by Eric Burbank | 09/14/2015, 12:22 PM | 3 answer(s)

Will this downpipe fit a GTX3582r?

Asked by Chase | 07/02/2015, 06:39 PM | 1 answer(s)

I'm interested in buying a log catted down pipe and I was wondering, will the 85mm one fit the 3" CPE cat back exhaust system?

Asked by David | 05/14/2015, 01:01 PM | 1 answer(s)

Hey guys. On my accessport I am running a stage 1 93 tune. The map I chose from Cobb was from the corksport intake, TIP, and internals. Is there any map that would also support the down pipe to get the most out of it?

Asked by Allen | 04/01/2015, 02:14 PM | 1 answer(s)

I have a 2006 Mazda 3 will it still fit? Because I saw you guys had the full exhaust system but nothing separately for the 2006.

Asked by Mason | 03/10/2015, 07:52 PM | 1 answer(s)

Does this downpipe line up to a gtx2867R turbo?

Asked by Brandon | 03/05/2015, 03:55 PM | 1 answer(s)

i getting the p0421 warm up catalyst efficiency below threshold any could be a bad cat?

Asked by Vlad | 02/11/2015, 09:54 AM | 1 answer(s)

What size would I need to attach this to a Cobb exhaust?

Asked by Braxton | 01/07/2015, 07:53 AM | 1 answer(s)

Does the short dp bolt to the first cat on the stock exhaust ?

Asked by Robert | 12/24/2014, 07:44 AM | 1 answer(s)

I have a 2013 speed3 and I have a ark dts catback exhaust and I was going to buy the catted down pipe and was wondering which flange size would fit. Thanks

Asked by Tyler | 12/14/2014, 05:29 PM | 1 answer(s)

I bought the catted DP and hooked it up to the stock exhaust and used the factory donut... if i was to go to a 3 in cat back, do i just remove that donut gasket or do i need to buy an adapter?

Asked by James Mueller | 11/10/2014, 03:38 PM | 1 answer(s)

Will this dp bolt to a gt3076 turbo? Says it needs a 3 "dp

Asked by Harry bender | 11/06/2014, 02:59 AM | 1 answer(s)

Corksport, I have just finished my full Corksport turboback exhaust. Is there any danger to my car being that I do not yet have a Cobb accessport to monitor my engine? I already installed the Corksport fuel pump upgrade and my other mod is the Corksport SRI. I plan on getting the AP as soon as possible. Thanks!

Asked by Evan | 10/31/2014, 06:52 AM | 1 answer(s)
Mazda performance parts financing is available with CorkSport

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