Page 5 - WRX/STi

Interested in purchasing our 2015 WRX cat-back exhaust? Check out more details on our product page linked below!

Subaru WRX/STi Cat-Back Exhaust

Prototype Fabrication

With the front section of our exhaust complete, we needed to address the Y-section as well as the pipes routing to the mufflers. We decided to go with 2 1/4" piping following the Y-section, which matches the diameter of the STi system.

Check out a couple shots from the fabrication process.

Fabricated muffler section

We bent a few more hangers for attaching the mufflers to the appropriate stock locations.

Interested in purchasing our 2015 WRX top-mount intercooler kit? Check out more details on our product page linked below!

Mishimoto Subaru WRX Performance Top-Mount Intercooler and Charge-Pipe System

3D Modeling

Now that the stock intercooler has been evaluated and modeled, we began designing our own cooler. Check out some of the initial models we put together for this prototype!

Stock (left) and Mishimoto prototype (right) intercooler model

Interested in picking up this exhaust adapter? Check out more details on our product page!

Mishimoto Subaru Exhaust Adapter, 3" Downpipe To Stock Exhaust

Looking for a better way to mate your 3" downpipe to the stock cat-back exhaust? Sick of blowing out gaskets and smearing copper sealant all over your flanges? Mishimoto now offers a 100% stainless steel downpipe adapter flange specifically for mating to a stock exhaust system. If you have a 2002+ WRX or STi, this is the piece for you! Check it out.

The flange adapter itself!

Interested in purchasing our 2015 STi intake system? Check out more details on our product page linked below!

Mishimoto Subaru STI Performance Air Intake

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 2008-2014 models. We're 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.

" width="300" height="200">

Interested in purchasing our 2015 WRX top-mount intercooler kit? Check out more details on our product page linked below!

Mishimoto Subaru WRX Performance Top-Mount Intercooler and Charge-Pipe System

Many of you checked out our recent thread about our progress on the 2015 WRX top-mount intercooler. We are finishing some testing to ensure that our product will provide the improvements our customers expect. Our prototypes look awesome, and so far they are proving to be quite efficient. So, we've decided to back-track a bit and highlight the process our team went through to create such an awesome product. We will also be including our final test results, as well as information about how you can get your hands on one of the first units to hit the shelves. Keep an eye on our threads and blog; we have some exciting stuff in the pipeline!

How It All Started

In late March our team ventured

Interested in purchasing our 2015 STi intake system? Check out more details on our product page linked below!

Mishimoto Subaru STI Performance Air Intake

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 won't get into which is better or which we prefer, because we have nothing but praise for the updated chassis.

Interested in purchasing our Subaru WRX or STi intercooler kit? Check out more details on our product pages linked below!

Mishimoto Subaru WRX/STi Front-Mount Intercooler, 2001-2007

Mishimoto Subaru WRX Front-Mount Intercooler, 2008-2014

Mishimoto Subaru STi Front-Mount Intercooler, 2008-2014

Time to review our data so we can finally put a close on this project. The product development process for this front-mount intercooler has taken months and has also helped refine several of our processes. Before we move into the testing data, our first portion of this post will cover the physical benefits of our intercooler. By providing a more efficient heat exchanger, we can ensure that higher-powered vehicles are not being hindered by debilitating heat-soak

Interested in purchasing our Subaru WRX or STi intercooler kit? Check out more details on our product pages linked below!

Mishimoto Subaru WRX/STi Front-Mount Intercooler, 2001-2007

Mishimoto Subaru WRX Front-Mount Intercooler, 2008-2014

Mishimoto Subaru STi Front-Mount Intercooler, 2008-2014

We are nearing the end of this build. As mentioned in the last post, we wanted to put our core to the test and provide some cooling efficiency data that our customers could use. We decided to modify our 2010 STi to add some heat and power to the CAC system for testing. Information regarding our vehicle is listed below.

2010 Subaru WRX STI

• 6-Speed Manual
• Mishimoto Intake

Interested in purchasing our Subaru WRX or STi intercooler kit? Check out more details on our product pages linked below!

Mishimoto Subaru WRX/STi Front-Mount Intercooler, 2001-2007

Mishimoto Subaru WRX Front-Mount Intercooler, 2008-2014

Mishimoto Subaru STi Front-Mount Intercooler, 2008-2014

As promised, we have a couple cool images showing these kits fully installed on our test vehicles. Check them out below!

First, our full kit installed on our shop 2003 WRX Bugeye wagon!