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Mazdaspeed High Pressure Fuel Pump Internals

Old price: $349.99  
Price: $332.49
You save: $17.50 (5%)
Price in points:  What are Points? 333 points
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HPFP for Mazdaspeed

Mazdaspeed 3 High-Pressure Fuel Pump (HPFP) Internals for both the Mazdaspeed3 and Mazdaspeed 6 took over 2 years of research and development to bring innovation you can count on in your Speed3 and Speed6. The CorkSport Max Flow Fuel Pump Internals have the best in market hardening surface treatments, high strength coatings, and a machined tolerance. Our Mazdaspeed HPFP Internals will give you the most performance available for your dollar. We make these fuel pumps with precision machining methods, we then treat the surface and coat it for strength, and finally machine the internals again for a perfect fit that provides your Mazdaspeed ultra-high efficiency. Real world application will allow for a greater horsepower capability, safer air/fuel ratios, and never need to worry about fuel supply in your Mazda.

PRODUCT FEATURE OEM APR/CP-E KMD AutoTech Mazdaspeed-3-fuel-pump-upgrade-header
OEM Spring Keeper
Upgraded Spring -
Piston Size - 8.0 9.5 9.8 9.8 9.8
Octagonal Piston Head
Installation Video (Internals) - -
Installation Video (Pump) -
Install Tool(s) - -
Lowest Piston Weight -
Manufacturer Created Accessport Tuning Maps -
Serialized STICKER
Surface Hardening Before Coating -
Machined After Coating -
Developed on Mazda MZR

What's In The Box:

  • Fitment: 2007-2013 Mazdaspeed 3, 2006-2007 Mazdaspeed 6, Mazda CX-7.
  • Fully Machined Installation Tools Designed to help provide the most trouble free install on the market (the keeper tool even turns into a bottle opener for your keychain).
  • High Rate Spring A higher rate spring is included in our kit for increased reliability and efficiency.
  • Designed Specifically for Mazdas The ONLY pump internals on the market designed by a Mazda performance company for the Mazda MZR engine, including Mazdaspeed 3, Mazdaspeed 6 and Turbo CX7.
  • Precision tolerances and improved efficiency 50% larger than the OEM pump internals for increased fuel volume flow.
  • Required Hardware Anodized Aluminum Installation Sleeve and Retaining Hardware included.Tough Aluminum Case For storing your factory internals or anything else that is legal.
  • CorkSport Service and Support: Receive a two year limited warranty, full color installation instructions, all of the needed installation hardware and knowledgeable telephone support.

Additional Features

How To Install Your Mazdaspeed MZR DISI Max Flow Fuel Pump Internals

It will take you two hours to install the CorkSport Mazdaspeed Fuel Pump Internals with our easy-to-use instructions.

2 Hour Install Time

2 Hour Install Time

Difficulty: 3/5

3/5 Difficulty

2-Year Warranty

2-Year Warranty



how to install Mazdaspeed 3 high pressure fuel pump internals

New features

Easy installation, guide was very helpful. Car is running awesome with the new fuel pump.
Can you do an ots with the stock do pipe
Just got this HPFP installed with a fresh dyno and gained 15WHP! At the same time, i took out the butterfly in the intake manifold and also gained 20WTQ! This fuel pump is incredible people!
I received my CS HPFP internals last week and installed them this past weekend (October 3rd). It took about 4 hours going very carefully. I parked my car Friday night and when I opened the high pressure rail, nothing came out at all. I didn't use relays to cut off the fuel; I just shut down normally the night before. Results may vary! For the 19mm nut, I used a tie-wrap, as suggested in the excellent Youtube video provided by CS that I watched 2x before starting the job. 1 hour of my time was spent with that high pressure line both when trying to slide out the pump and later to slide it in. It seemed like the unit wouldn’t come out, but the problem was just that it is low-tolerance and the force of the high pressure tube was causing the unit not to slide out easily. I pushed down that rail and the unit came straight out. Then straight in, but pulling the tube back up was painful. My setup is all Corksport SRI/TIH, HPFP, and TMIC. I’m using a Cobb with a stage 1 map for the Corksport SRI/TIH and 91/92 Octane, to which I always add $3 O’Reilly octane boost, just for some added margin. The car is smoother and faster and pulls harder to redline. At first I thought it was just the post-mod feeling, but after driving for almost a week, I noticed all kinds of differences in how the car pulls in all gears and all speeds. It really is running better with the exact same map I’ve always used. Now I just wish Corksport made Accessport maps for its own mods so I could take better advantage of the better flow from the TMIC with their intake and HPFP. I guess you can’t have everything.
I just finished installing this last night on a gen2 MS3 (it took about 1.5 hours with help from a friend). I definitely recommend having a friend help, as reinstalling the pump housing and lining up the high pressure fuel line would have been nearly impossible by myself. The majority of our time was spent removing and reinstalling the pump housing. Assembling the internals is a piece of cake - thanks to the clear instructions (I watched the video and read the print instructions twice before installing) and provided tools. The car fired up on the first try with no leaks. Thanks CS for a great quality product!
The fuel pump comes packaged very nicely with well designed tools and amazing instructions. Install was easy, just take your time and have fun. The results were very noticeable with instant smoothing of the raw feel these cars develop. It's still there, just more eager and stout than before.

Save up and spend the money to buy this, it's worth it, and provides ease of mind for later mods.

Corksport is the model by which all companies should strive to be, however them not following in suite is what makes me keep coming back for more.

The customer service is spectacular, when I call with questions I get to speak to an engineer. Being an engineer, there is nothing more frustrating than sales people BS-ing their way through your questions to get to the gold. This is a company that builds a relationship with their customers, does what they can to help them, and build great products because they care.

I got my CORKSPORT Max Flow Fuel Pump Internals installed today. Oh man! I have only driven 5 miles on them and I already feel the difference. Seems smoother so far.

My car has 129k+ miles. On my stock internals, I maxed out at 1735psi, but it didn't really hold and it was high up in the rev range. Still pretty damn good for that many miles and all the mods I have. But, when I want more, I want my car to be safe.

After the install I noticed that I was hitting 1700psi+ while I was keeping the RPMs well below 3500 RPMs!

Can't wait to open that throttle. I want to take her easy for about 100 miles before that though. Thanks Corksport!
Im Hitting 305 HP right now and fuel pressures maintain at 2000psi. Proven reliable.

Last review was a fluke. Forgot to click star rating. Hopefully it doesn't get posted.
The difference between CorkSport's internals compared to the stock internals is night and day. The car feels a lot smoother when you do pulls and it stays aggressive even when you're hovering past 5K on the tac! The install itself was easier than I thought too and the video that CorkSport has on YouTube was really helpful along with the paper instructions. One thing I suggest you do is pull the CIRCUIT fuse in your car and then start the car and let it idle until is dies. I've seen other people do this and their car dies within a few seconds after they turn it over but my car took about 30 seconds until it died so just give it time. Doing this will release pressure and help you loosen the 19mm nut that's on the fuel line. During the actual install of the internals just follow the video and you'll be fine. You don't need gloves when installing the internals, but if you want to wear them then go for it. I personally just had a lint free towel on my kitchen table, a foam pad to put my vice onto, a cup of clean motor oil and a cup of some gasoline from the fuel pump housing, my laptop with the install video on and clean hands. The assembly took about 5 minutes and was pretty simple. When it was time to put the housing back onto the head the fuel line was too high up and causing the housing to go onto the head at a weird angle. After I noticed what was going on I called up my buddy and he pulled the fuel line back as I put the housing in. I definitely recommend two people when you install the housing back into the car because if your fuel line is like mine then you cannot do it alone. After the install I let the car idle for 20 minutes just because I was putting the tools away and getting side tracked by TV. I did take it easy on my car for 100 miles like you do with other internals and not go over 4K just because I wanted to play it safe. Earlier tonight was when I finally went past the 100 mile period and I did my first 3rd gear pull with the new internals. Someone said the car feels like a missile with new internals installed and I have to agree with them. It's also a great feeling to know that I can safely install a downpipe now!
I am running a fully bolted 2007 speed 3. on a stock turbo at 21lbs peak target

through AP. and 3.5 FMIC over my Top mount ETS 3.5

I ran it last year and she struggled to maintain pressure at wot around 5k in 4th and 5th and 6th gear.

Just installed sunday after being one of the first to purchase the CS internal upgrade.

Yes i was intimidated.

Install was easier than i thought and wow. What a seat of the pants difference. smooth till redline in every gear. did my datalog wot to 130 at 21.36lbs peak and all parameters are fantastic.

Should have been my first mod if it was available.

My first mod was the CS MM insert. I should have known then , these was an engineered product !

Best mod ever.

wow. just wow

for anyone who is going to turn up the wick hard on a speed 3 this should be your first buy.

peace of mind.

These folks nailed it.
Write a review

Will this work with a CX30, and if not is there a model meant for those specifically? Thank you!

Asked by Eric Andersen | 04/07/2023, 06:06 AM | 1 answer(s)

Will installing your hpfp internals make it so my car wont pass smog?

Asked by Kaden Shah-Welch | 09/23/2021, 12:25 PM | 1 answer(s)

Just purchased a 2010 Mazdaspeed3 with 135,000 miles on it. The car came with a Cobb SRI, but everything else is stock. The next step is to install high pressure fuel pump internals. Will replacing the internals on a high mileage car be fine with the existing fuel pump or should I replace the whole fuel pump and place the high flow internals in a new high pressure fuel pump?

Asked by Carlos Sierra | 11/27/2020, 06:57 PM | 1 answer(s)

I have a fully stock 2010 speed 3 just lowered it and i need more engine upgrades so will i need a new MAF or tune when i install this?

Asked by tim soucie | 11/08/2020, 03:31 PM | 1 answer(s)

My current stock hpfp is ticking, will this also fix my hpfp or should I get a new one first and then buy this kit?

Asked by Youri l. | 06/09/2020, 01:16 PM | 0 answer(s)

First mod of many; can I have my local mechanic do the install?

Asked by Jarvis | 10/22/2019, 03:59 PM | 1 answer(s)

That will work for Mazda 3 2013 2.5 auto trans (non skyactiv)

Asked by Juan  | 08/31/2019, 06:49 AM | 1 answer(s)

I went to install these internals and noticed that the little O-ring that the piston passes through had degraded in my stock pump. Any ideas short of buying a new pump would be greatly appreciated?!?

Asked by Tom | 06/19/2019, 07:49 PM | 1 answer(s)

My HPFP makes a loud clicking at the lightest touch of throttle between 2000-3000rpm. I've had CS internals in the hpfp for about 4 years. I replaced the fuel relief valve and even put in new CS HPFP internals and the problem persists. Does anyone on your team know the issue I'm experiencing and how to resolve it?

Asked by Evan | 05/11/2019, 07:25 PM | 3 answer(s)

I have a 2006 Mazdaspeed 6 and there is a Service Bulletin 01-022/08 for engine too lean at idle (P2187) will the fuel pump kit fix the weak fuel pressure at low idle?

Asked by Brad | 10/07/2017, 10:38 AM | 1 answer(s)

can i run a sri and cbe with the stock tune?

Asked by Keni | 07/07/2016, 03:46 AM | 1 answer(s)

I have the stage 2 intake and rmm insert, I don't WOT, go to tracks or race, I just use my car as a dd and I just bought the intake because I read that it would help me save on my mpg. Do I really need to upgrade my HPFP? Thank you

Asked by paul | 06/29/2016, 01:18 PM | 1 answer(s)

I upgraded my pump internals with the CS high flow fuel pump internals. I'ts possible revert the pump internals to stock, with the same stock internals removed?

Asked by Alejandro | 12/16/2016, 04:13 PM | 0 answer(s)

Is this compatible with gen 2 (2009~2013) speed 3?

Asked by cheez | 08/24/2016, 05:54 AM | 1 answer(s)

How much does this effect the fuel mileage?

Asked by Jeff | 05/16/2016, 09:00 PM | 3 answer(s)

I'm assuming that with the tappet already mated to the collar there is no further seating required? This is the only step in the process that differs from the instructions.

Asked by Jeff Magill | 04/30/2016, 02:12 PM | 1 answer(s)

I'm running stage 2 intake, boost tubes, and race pipe. Would I be safe for awhile while running theses mods. Still saving for the fuel pump

Asked by Tarango | 03/27/2016, 08:03 PM | 1 answer(s)

Can I run a stage 1 map on my 2013 mazdaspeed 3? Mods: corksport sri w/TIP, corksport cbe.

Asked by Eden Cerna | 03/21/2016, 12:26 PM | 1 answer(s)

My internals came with the tappet already mated to the collar. Is any further seating needed or just slip on? Sorry if this shows up twice, I got a send error the first time.

Asked by Jeff Magill | 04/30/2016, 02:18 PM | 0 answer(s)

Can you do an ots with the stock do pipe

Asked by George | 02/25/2016, 10:36 AM | 1 answer(s)

I've been told this should be the first upgrade to my ms6 before anything, true? I already have exhaust and short ram intake.

Asked by Ryan foley | 01/26/2016, 06:35 PM | 1 answer(s)

I feel like im beating a dead horse here but do you need any specific map to run this HPFP?

Asked by Jacob Pepel | 12/30/2015, 04:46 PM | 1 answer(s)

Is there any sort of break in period needed or recommended after the installing of this pump?

Asked by ANDY | 12/04/2015, 09:28 AM | 1 answer(s)

I bought and installed the HPFP and my relief valve blew. Im buying a new relief valve and need to know what the peak pressure the pump will make so buy the correct relief valve. Thank you in advance P.S do you have any advice on the relief valve?

Asked by Andrew | 10/28/2015, 09:30 PM | 1 answer(s)

Hello, I installed the corksport internal in a brand new hitachi pump in my gti mk5 fsi engine 2008. The stock pump works perfectly fine, however with the corksport internals the car would have difficulty to start, like if the pump is not primed, and when the car does start the ecu throw the code p2293 Fuel Pressure Regulator 2 Performance code, and the car appears to be a limp mode. No boost no power. Apparently the car is experiencing fuel starvation. When I put back the stock internal in the pump, everything is normal. Any suggestion? Should I try with the stock spring?

Asked by Laurent | 10/12/2015, 10:12 AM | 1 answer(s)

At wot sometimes cuts my fuel like a fuel cut would I need internals?

Asked by zack | 10/02/2015, 06:24 AM | 1 answer(s)

Wat advantage does this have over an entire hig pressure fuel pump? Stock Speed6

Asked by Gio | 07/06/2015, 08:30 AM | 1 answer(s)

this works for mazdaspeed3 2007-13 correct?

Asked by Joe | 06/15/2015, 11:07 AM | 1 answer(s)

Would this work with a 2014 Mazda 3?

Asked by Space | 06/09/2015, 04:28 PM | 1 answer(s)

These will work on a 2010+ ms3 right?

Asked by Isaah  | 06/02/2015, 06:34 AM | 1 answer(s)

What should my fuel pressure be at wot/cruise/idle. Im running stock internals with stage 3 corksport cai and inlet pipe. Also running the cobb stage 1 91 cs cai+inlet. Running 1700 at WOT. I need to upgrade just gotta save up. Am I safe or should I down the map to safe mode?

Asked by Derrick  | 04/30/2015, 10:09 PM | 1 answer(s)

Would this also fit the fuel pump in a VW/Audi FSI engine?

Asked by Paco | 02/28/2015, 10:37 AM | 1 answer(s)

Do you need an accessport for any changes after install, or is that optional tuning.

Asked by Mike | 01/22/2015, 06:01 AM | 1 answer(s)

Does this work with 2012 Mazda 3 2.0?

Asked by Adam | 11/18/2014, 03:07 PM | 1 answer(s)

After install the internal, do I need to avoid driving full throttle?

Asked by Jae Il Hwang Park | 11/02/2014, 11:25 PM | 1 answer(s)
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2007-2009 Mazdaspeed 3
2010-2013 Mazdaspeed 3
2007-2012 Cx7 Turbo
2006-2007 Mazdaspeed 6
2007-2009 Mazda 3 MPS
2010-2013 Mazda 3 MPS
2005-2007 Mazda 6 MPS