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Description
do88 Porsche 911 Turbo (991) Intercooler Kit MERA for do88 Y-PipeA true performance upgrade intercooler for the 991 Turbo Turbo S. This is the most refined of all products we carry today, MERA launched in January 2022! Colder inlet air temperature in the same conditions: 40C 104 F (57C 134,6 F), 17C 30,6 F lower. See diagram below. More air to your engine, less backpressure and better airflow! Airflow at 0,175 bar 2,54 psi pressure drop: 726 CFM (607 CFM), 19 % higher (do88 intercoolers + OE y pipe vs OE
A true performance upgrade intercooler for the 991 Turbo / Turbo S. This is the most refined of all products we carry today, MERA launched in January 2022!- Colder inlet air temperature in the same conditions: 40°C/ 104 F (57°C/134,6 F), 17°C/ 30,6 F lower. See diagram below.
- More air to your engine, less backpressure and better airflow! Airflow at 0,175 bar / 2,54 psi pressure drop: 726 CFM (607 CFM), 19 % higher (do88 intercoolers + OE y-pipe vs OE intercooler + OE y-pipe)! See diagram below.
- 3D, freeform designed cast end tanks.
- Custom designed carbon fiber ambient air guides.
- Comes with high quality silicone hoses and accessories for installation.
MERA as in more, means more cooling, better airflow, more performance. Simply, MERA!
Starting off with a thorough market research in the beginning of our intercooler development for the 991, we understood that not many of the upgrade products on the market were really upgrades, but rather at the same level as the 991 standard units, or in some cases even subpar. We realized that we could not cut any corners to keep the cost down, we had to create the best possible solution for the given space in the car!
Upon launching this intercooler kit back in 2018, we chose to go with a UK made Tube&fin core, enabling great cooling and airflow paired with a low weight. It has proved very well over the years, featured on various 1000 HP builds. In the spring of 2022, it´s time for the next phase in the constant development of the do88 products. After thorough testing, we chose to move over to a Bar&Plate, motorsport-grade core from Garrett, thus bringing this already highly effective upgrade to the next level.
Overall differences:
- 13% higher airflow compared to the previous version.
- New, lighter airduct made from real prepreg carbon.
- 3,1 kg weight increase per intercooler compared to previous do88 intercoolers.
All in all, the weight increase compared to the OEM units is relatively small considering the sheer size of the intercoolers, and the fact that it´s an all-aluminum, dense construction. Our intercooler weight is 8,5 kg (18,74 lbs) per piece and the 991 OEM intercooler weighs 3,1 kg (6,83 lb) per piece. As much as it may seem in terms of weight increase, it is more than well compensated for if we consider the performance gain these intercoolers provide!
The intercooler kit comes with hoses adapted for OEM or do88 (63 mm) y-pipe. What differs is the included hoses. Choose your version in the drop-list above.
When it comes down to performance, the do88 intercoolers significantly reduce the intake temperature! In the graph below the difference towards the OEM 991 units is presented. The data is collected with an AIM race logger under 5 consecutive runs in an immediate sequence. Full throttle accelerations between 50-250 km/h (30-155 mph) in a Stage 1 tuned Porsche 991. No cooldown in between, just full pull. During every test, the car was driven in Sport Plus, AC off.
The test was conducted in the following manner:
Firstly, 5 runs were made with the car equipped with OEM intercoolers. Stop, fast change of parts to the do88 intercoolers. Shakedown for a few minutes and then 5 runs made in the exact same way as with the OEM parts. The decrease in inlet air temperature is significant, peak delta is 17°C (30,6 F) see the graph below!
Cooling is important, and so is airflow. After many hours of development, refining the end tanks and choosing a core to meet our demand, the result is an intercooler that is much more efficient in terms of heat transfer as well as airflow. Using our in-house Superflow SF-1020 Probench, the airflow is verified as a complete system, with hoses on both inlet and outlet, for both the OEM 991 intercoolers, and the do88 performance intercoolers. What you see is what you get MERA performance from do88!
Fits:
Porsche 911 (991)
Model years: 2013-
Engine: Turbo / Turbo S
Note:
Select which Y-Pipe you have on your car. OEM or do88 Performance.
OEM reference:
99111063972
99111063973
99111064072
99111064073
Note! Some modifications has to be done when installing this intercooler kit, please read step 29,31 & 35 in the installation guide before placing order (click the link below).
Detta diagram visar luftflöde vid olika tryckfall för do88 prestanda intercooler jämfört med original intercooler:
Detta diagram visar insugstemperatur för do88 prestanda intercooler jämfört med original intercooler:
Shipping Notes
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 27 reviews
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Product Reviews
★★★★★ 3
I’m a little disappointed.
Format: Kindle
I usually like Jillian West’s books but this one was missing a lot for me. The pregnancy didn’t come across as real. She’s on her feet for 12 hour days but is perfectly healthy at 8 months pregnant? Yet the week she moves in all of a sudden she’s not? She is planning on actually running during one of the plot buildups. But at 8 months pregnant that’s incredibly hard to do. The lack of breathing ability and lung space, the change in body center, mass, and gravity. All of it prohibits running, unless you’re an athlete this didn’t come off as at all realistic.
I didn’t feel any connection with the alphas. There wasn’t any emotional connection. It could be because of the tense it was written in. But I didn’t get any deep feelings out of this. It came across as checking off boxes. Even the spicy scenes weren’t really believable for me. I wanted to see them fall for her, and it just kind of all fizzled. Even Bishop.
One thing I did really like was the ending. I did not see it coming and I’m interested in reading book two because of it. But on the whole this book was mostly disappointing for me.
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Reviewed in the United States on March 16, 2024
★★★★★ 4
4.25 stars
Format: Kindle
Vale is an 8 month pregnant omega working as a waitress at a strip club and a cam girl. She starts to get very creepy vibes from a regular at the club, and her baby daddy ghosted her. She has had an online relationship with a man named Bishop through her cam girl status. One night, bishop was paying to watch her sleep and ansthe creepy regular Andrew break in and watch her sleep he tells vale to come to him at his business now. She flees and finds herself at a large security company with some.hot of alphas who are there to help her. This imegaverse is a little different than I have read, but I am thoroughly enjoying it. Vale is not a traditional omega she was raised by a single beta mom, and the alphas are not normal alphas they have never really loved pack life. But they are ruthless mercenaries. They need her, and she needs them. I love the aspect of the stalker and now the plot twists at the end, so so good. Sometimes, it seemed a little slow and stale mated, but since this a duet, I think It was just her starting to have Vale get to know her alpha suitors. Cliffhanger for sure with this one.
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Reviewed in the United States on September 9, 2024
★★★★★ 5
That ending 😫
Format: Kindle
I fell into a false sense of security and really thought this was gearing towards a happy ending. Then I realized there’s no work they don’t punish Andrew. I really liked Vale’s character. I don’t normally read books with pregnancy but going into this knowing she was pregnant made it more enjoyable for me.
I loved Bishops devotion to her and her happiness. I also loved that Holt and Mercy couldn’t fight their attraction to her. I love scent matches so very much. I’m so curious to see how this duet will end up. And I need to pay more attention and notice that a book I’m starting is a duet to begin with lol
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Reviewed in the United States on February 21, 2025
★★★★★ 5
oh wow
Format: Kindle
I just knew there was something about Cooper! I’m wondering if he’s about to be included but damn I’m glad he’s at least not a rapist and creepy guy, he just got called on assignment and had to go! This should be interesting! She’s gonna run and then what’s his face is gonna grab her. I’m worried! Wow that was a great book and cliffhanger! Loving this!
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Reviewed in the United States on December 27, 2025
★★★★★ 5
ABSOLUTELY A MUST for Omegaverse Girls!!!
I ABSOLUTELY LOVE Jillian West and her books!!! I’m so happy I already bought book two and now I have to buy the others for the Assurance Security series!!
Not gonna lie Val kind of annoyed me at the beginning but she grew on me!! Her men are chef’s kisses!!! Holt annoys me some but I can let it slide. I already bought part two so I’m going to be reading that in between work phone calls!!!! DON’T TELL MY BOSS 😂😂😂😂
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Reviewed in the United States on September 30, 2025