|
|
|
|
Thread Tools | Display Modes |
12-16-2014, 04:25 PM | #1 |
Former Vendor
Member#: 207954
Join Date: Apr 2009
|
Mishimoto 2015 STI Performance Air Intake!
Hey guys,
We are getting a bit further along in the build process for our 2015 STI intake. Follow the build process on our blog, or posted in this thread! http://engineering.mishimoto.com/?cat=179 Mishimoto 2015+ Subaru STI Performance Cold-Air Intake System, Part 1: Project Introduction and Goals Launch Edition Subaru STI in Mishimoto garage Introduction Our team is finally working on some cool components for the new 2015 Subaru STI! As you know, the 2015 STI is essentially a hybrid of old and new Impreza components. It features the newer body style paired with the trusty EJ engine, instead of the new DIT motor featured in the WRX. We wont get into which is better or which we prefer, because we have nothing but praise for the updated chassis. Our team has spent a great deal of time with both vehicles, and we are impressed with how the STI drives, handles, brakes, and functions as a comfortable yet sporty sedan. As you may already know, we developed an intake system for the 2015 WRX recently, and we had a ton of success producing some really nice power gains. We also offer an intake system for the 20082014 WRX/STI equipped with the EJ engine. You can see where we are going with this. Before we had a look at the STI, we already knew we had a chance to use some preexisting components from one or both of the intake systems we already offer. Not only would this speed up the development process, but it also means we would be using proven components. Before we set our engineers loose on this vehicle, we set up some guidelines for this particular project. Project Goals
Direct Fit As with any aftermarket component, fitment problems are always a consideration. Nothing is more frustrating than trying to install your new component, only to find that it has been poorly designed and does not fit well. Our goal here is to develop an intake system that is a 100% bolt-on unit. Obviously you do not want to have to modify your brand new car, so this kit will have to fit without any cutting, drilling, or trimming. Our engineering team is no stranger to this requirement, so this should be an easy one. Adding Safe Power Intakes and applicable tuning have been hotly debated in the WRX/STI community for some time. If possible, we will design this intake to provide increased power on the stock tune, and we will test this unit extensively to ensure engine safety is not compromised. With our 20082014 intake setup, we achieved gains of 25 whp and 25 wtq on the stock tune with completely safe AFRs. We tested this unit in all forms of engine operation to be sure that our customers would not have issues. The same testing regiment would be needed for the 2015 STI intake we design. Easy Installation An intake upgrade should be a simple bolt-on modification. We want this process to be extremely simple and achievable, requiring only simple hand tools and a basic mechanical knowledge. Part of making this process seamless is the inclusion of all necessary components for installation, which is a top priority for this project. Testing Data The last goal is the most important. We conduct a ton of testing for each product that leaves the facility. If it was designed by Mishimoto, you can be sure that we thoroughly tested and perfected our design. Our in-house Dynojet will certainly help with this portion of development. Our thorough testing and presentation of test data are key elements that separate our company from the others. Vehicle Evaluation With our goals in place, it was time to pull the STI into our shop and start evaluating potential designs and product fitments. The kind owner of this 15 Launch Edition was nice enough to lend his brand new vehicle for some testing. Check it out! Launch Edition Subaru STI in Mishimoto garage Launch Edition Subaru STI stock engine bay Launch Edition Subaru STI stock engine bay First, we wanted to check fitment for a few of our 20082014 components to see if anything would cross over to the new chassis. After replacing the stock intercooler with the Mishimoto unit, we noticed that this low-mile 2015 vehicle is already showing some oil in the intercooler system evidence that a catch can system would be a wise investment. We will be working on a direct-fit kit for the 2015 STI, similar to what we offer for the WRX. Stock intercooler oil buildup Stock compressor housing oil buildup Next we slid our intercooler into position to check for any fitment concerns. We were happy to discover that our 20082014 STI intercooler is a direct fit for the 2015 model as well! Mishimoto intercooler installed on 2015 STI Mishimoto intercooler installed on 2015 STI We also checked out a variety of other vehicle components and discussed the similarities and differences in an informative video review. Check it out below. First Mock Up Now, back to the project at hand! With all our other product test fitting out of the way, we could begin planning what we would like to do for the intake. Knowing that the body of the 2015 WRX and STI is similar, we started with checking the fitment of the intake box we designed for the WRX. The box obviously fit into the same location in the STI, but the piping presented an issue. With its front-mounted turbo setup, the WRX intake system utilizes a different intake tube setup that would not work with the STI box. Next, we grabbed our race intake system for the 20082014 models, which utilizes an intake box and a short-ram pipe with filter. We then mocked this unit into place. Mishimoto intake box mockup Mishimoto intake box mockup This design could certainly work, requiring modification to only the box. The setup also features a larger MAF housing compared to the stock inlet pipe. This would cause some issues with our claim of no tune required, which is why we offer this kit for 20082014 owners with aftermarket tunes. By doing so, we can cater to customers who have aftermarket tunes, as well as those who want to stick with the stock tune. We will come back to this particular setup later, when we move forward with a race intake design for the 2015 STI. Check back with us next time as we explore another option for this intake system! Thanks
* Registered users of the site do not see these ads.
|
12-23-2014, 12:43 PM | #2 |
Former Vendor
Member#: 207954
Join Date: Apr 2009
|
We have an update on this project! Check it out below!
http://engineering.mishimoto.com/?cat=179 Mishimoto 2015+ Subaru STI Performance Cold-Air Intake System, Part 2: Prototype Fabrication Prototype Fabrication After experimenting with some boxed designs in Part 1 of this write-up, it was time to turn our attention to a shrouded setup, similar to what we offer for the 20082014 models. Were hoping we could utilize the piping from our existing kit, which is well designed and has proven power gains. After placing the shroud into position, we found that it would certainly fit, but would require some modification. The fabrication work began! Check out a few shots taken during the process. Mishimoto intake shroud modification Mishimoto intake shroud modification Mishimoto intake shroud modification Once all fab work was completed, we had a functional shroud that we could use for testing purposes. We could also use this shroud to develop a 3D model for our production units. Take a look! Mishimoto modified intake shroud Mishimoto modified intake shroud Mishimoto intake modified shroud We could then combine this shroud with our intake pipe, shown below, to capture some performance data. Mishimoto intake pipe This pipe features a stock MAF housing, as well as an air straightener to provide laminar flow across the sensor. Check back next time for a look at the testing process, and the results from our dyno pulls! Check out the teaser shot of this car getting setup on the dyno! 2015 Subaru STI on dyno Thanks! |
01-13-2015, 10:03 AM | #3 |
Former Vendor
Member#: 207954
Join Date: Apr 2009
|
Our data is up! Check it out below.
Mishimoto 2015+ Subaru STI Performance Cold-Air Intake System, Part 3: Testing Dyno Testing Time to see what kind of power gains we are able to achieve with our intake design! First, we strapped this Launch Edition to the dynamometer. 2015 STI on the dynamometer 2015 STI on the dyno Then we began making pulls. On our first day we tested only the stock intake system. Once complete, we installed the Mishimoto intake system and sent the vehicle out for some road testing. We wanted to allow the ECU to adjust to the new intake before making our pulls. After well over 150 miles of road use, we returned the next day to compile dyno data for the Mishimoto intake. 2015 STI on the dyno Testing Results So how did we do? Well, I think the plots below summarize our results quite well. 2015 STI dyno plots As you can see, our intake made a great impact on performance, especially at the upper end of the rpm range. The biggest gains occurred from around 5,000 rpm to redline. We saw peak power increases of nearly 20 whp and around 6 wtq. We also saw maximum gains of 22 whp and 17 wtq. With our past intakes that make power on the stock tune, we have had a few inquiries regarding engine longevity, AFRs, and knock. Our AFR charts for the runs above are shown below. 2015 STI AFR plots Although leaner than the stock curve, we are still well within a safe range for engine operation up through redline. Also, we experienced zero counts of knock during our dyno and road testing. These results were expected and are similar to those from our 20082014 intake system. Intake Shroud Design Now that we had positive testing results, we could move forward with producing our STI-specific shroud to get this product on the market! Check out a rendering of the design in 3D! Mishimoto intake shroud render Thank you very much for following along with the progress of our intake. This was quite an exciting project! We are around 8 weeks from releasing this item. Would anyone be interested in a discounted presale offer for the members of the forum? Let us know and we can set something up! Thanks |
01-13-2015, 10:05 AM | #4 |
Scooby Newbie
Member#: 382302
Join Date: Feb 2014
Chapter/Region:
Tri-State
Vehicle:2015 STi CWP |
Take my money!!
|
01-13-2015, 10:56 AM | #5 |
Former Vendor
Member#: 207954
Join Date: Apr 2009
|
|
02-03-2015, 02:57 PM | #6 |
Former Vendor
Member#: 207954
Join Date: Apr 2009
|
Another update!
Mishimoto 2015+ Subaru STi Performance Cold-Air Intake System, Part 4: Race Intake System As noted earlier in this article series, we would be tackling a race intake system to go along with our bolt-on unit. So what makes the race system different? For this particular system we are using a larger-diameter intake pipe with a larger MAF housing. This means greater intake flow, but it also means it will no longer function with the factory tune. This system is meant specifically for drivers who want aggressive professional tunes so they can take advantage of airflow modifications such as larger turbochargers and high boost pressures. Because the 15 model shares the EJ from the previous generation, we would be using the same intake pipe and filter as we did with our 20082014 kit. This unit is shown below. Race intake pipe Mishimoto air filter Here is a look at this system fitted to a 2010 STi! Mishimoto 20082014 Race Intake installed So, all we truly needed was to design an airbox that would accommodate this pipe and function with the body of the new 15 model. We hit Solidworks and came up with the design you see below! Mishimoto 2015 STi Race Intake rendering Mishimoto 2015 STi Race Intake rendering We are working towards completing this kit alongside our bolt-on intake. Keep an eye out for a pre-sale on both kits coming next week! Thanks |
02-09-2015, 03:02 PM | #7 |
Scooby Newbie
Member#: 404350
Join Date: Oct 2014
Location: Buffalo, New York
Vehicle:2015 WRX STI WR Blue Pearl |
I'm in for the intake if there is still a presale
|
02-10-2015, 04:46 PM | #8 |
Scooby Newbie
Member#: 382302
Join Date: Feb 2014
Chapter/Region:
Tri-State
Vehicle:2015 STi CWP |
Just saw the pre sale is up. How long will the pre sale go for? Waiting for my tax return lol
Last edited by jimazz; 02-10-2015 at 04:52 PM. |
02-11-2015, 10:13 AM | #9 | |
Former Vendor
Member#: 207954
Join Date: Apr 2009
|
Thanks! Details on the pre-sale are shown below.
Quote:
Start Date: 2/10/15 Est. End Date: 3/3/2015 Est. Ship Date: 3/6/2015 Performance Cold Air Intake Price: $265 + Shipping Link: http://www.mishimoto.com/subaru-wrx-sti-performance-cold-air-intake-15.html Product Specs
Tech Specs Images Race Air Intake System Price: $170 + Shipping (W/Out Box) $275 + Shipping (W Box) Link: http://www.mishimoto.com/subaru-wrx-...intake-15.html Product Specs
Tech Specs Images Feel free to follow up with any questions or comments! Thanks |
|
03-25-2015, 02:14 PM | #10 |
Former Vendor
Member#: 207954
Join Date: Apr 2009
|
Hey guys,
We have had a few shipping delays that have pushed back the actual ship date for this pre-sale. Our finished kits are expected in our warehouse very soon and we will begin filling orders from the pre-sale immediately. I apologize for the delay and any inconveniences this has caused. Once these units ship out everyone who placed an order will receive tracking information via email. Thanks again for all of the orders guys! -John |
04-02-2015, 05:02 PM | #11 |
Scooby Newbie
Member#: 392785
Join Date: Jun 2014
|
Do you guys have an install guide or a reference guide we can use for this?
|
04-07-2015, 02:45 PM | #12 | |
Former Vendor
Member#: 207954
Join Date: Apr 2009
|
Quote:
https://www.youtube.com/watch?v=tkNfPou7KB0 Let me know if you have any questions! Thanks -John |
|
04-10-2015, 02:05 PM | #13 |
Former Vendor
Member#: 207954
Join Date: Apr 2009
|
Hey guys,
Thanks to all who joined our discounted pre-sale! These intakes are officially available for purchase. Check out the details below. Subaru STI Performance Cold-Air Intake, 2015+ Product Specs
Tech Specs Images Subaru STI Performance Race Intake, 2015+ Product Specs
Tech Specs Images Product Development http://engineering.mishimoto.com/?cat=179 Feel free to follow-up with any questions or comments! Thanks -John |
03-11-2018, 06:39 PM | #14 |
Scooby Newbie
Member#: 338312
Join Date: Nov 2012
|
How long have you been using this intake without a tune? any problem? 17 sti.
|
03-12-2018, 11:56 AM | #15 | |
Former Vendor
Member#: 207954
Join Date: Apr 2009
|
Quote:
Hello Rowrx11. The performance intake for the STI ( MMAI-STI-15 ) Has been out for a couple of years now. This intake system has been designed in an attempt to squeak out every last bit of performance. This dyno-proven air intake provides 20 whp/18 wtq gains over the stock intake while maintaining safe air/fuel ratios. https://www.mishimoto.com/subaru-wrx...intake-15.html Thanks -Jake |
|
03-12-2018, 02:06 PM | #16 | |
Scooby Newbie
Member#: 338312
Join Date: Nov 2012
|
Quote:
|
|
03-19-2018, 11:37 AM | #17 |
Former Vendor
Member#: 207954
Join Date: Apr 2009
|
Hello Rowrx11
Unless you are using 93 octane fuel, it is critical that you have your vehicle tuned to accommodate this upgrade. Thanks -Jake |
08-21-2018, 02:40 PM | #18 |
Scooby Newbie
Member#: 309719
Join Date: Feb 2012
Location: Dayton OH
Vehicle:2012 Forester XT |
Jake: Do you know if there's an off-the-shelf Stage 1 tune available for a 2012 Subaru Forester XT (auto transmission) with the Mishimoto intake? Would the WRX OTS tune work? Suggestions? Thanks.
|
10-10-2018, 02:47 PM | #19 |
*** Banned ***
Member#: 492161
Join Date: Oct 2018
|
Ohhh, it's amazing!
|
Thread Tools | |
Display Modes | |
|
|