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The Moditorium

A high performance automotive resource for parts, how-to's, projects, buyer's guides, technical, events, and more.

New Product: Grimmspeed Catback Exhaust for Subaru WRX and STI

Subaru WRX / WRX STI

New Product: Grimmspeed Catback Exhaust for Subaru WRX and STI

By: JP Alonso / September 14th, 2017

You might be asking yourself why didn't Grimmspeed come out with an exhaust system sooner. The truth is that they don't just come out with products to come out with products. They want to be unique and functional. They don't want to be a "me too" brand, and that they aren't.

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Project Blue Boxer - Part 3: Nothing Too Flashy, Everything Functional

Subaru WRX / WRX STI

Project Blue Boxer - Part 3: Nothing Too Flashy, Everything Functional

By: JP Alonso / February 13th, 2017

Part 3 of Project Blue Boxer is comprised of a handful of very functional parts with a dash of style.  A mixture of more power, better handling, and preventative modifications were all thrown at the car and we can honestly say the car is starting to set itself apart from the rest...finally.  

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Does the Subaru WRX and STI Really Need a Catch Can?

Tech / Subaru WRX / WRX STI

Does the Subaru WRX and STI Really Need a Catch Can?

By: Alan Jackson / January 24th, 2017

For those of you that don’t know, a catch can is a device that is installed in the PCV (Positive Crankcase Ventilation) system. It “catches” all the oil vapor that passes from the crankcase back into the intake system where the crankcase is vented too. This oil vapor, as well as other nasty stuff that come out of the crankcase, has a very low octane rating. When the junk from the crankcase makes it way into the cylinders, it can cause detonation and reduce the performance of the engine.

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Project Blue Boxer - Part 2: Exhaust, Brakes, Wheels, Tires, and More Tuning

Cars / Subaru WRX / WRX STI

Project Blue Boxer - Part 2: Exhaust, Brakes, Wheels, Tires, and More Tuning

By: JP Alonso / November 7th, 2016

It's fun to tune the car right out of the box and it certainly feels much better than stock with more boost and a little more aggressive ECU mapping (for more about this, check out our Part 1 blog here).  Our problem remains, though, that the stock components have such a low performance ceiling.  The catalytic converters are extremely restrictive and the exhaust piping is small in diameter.  This prevents the turbo from pushing further, as well as the cylinder from clearing and allowing you to advance timing and allow more air to move into the cylinder.  The wheels are bulky and heavy and for being as small as they are, they certainly don't correspond with any weight advantage.  After taking the car to the track with the completely stock suspension, brakes, and all season tires (which was really just to create a baseline, we knew we weren't going very fast without upgrading all this), it was clear that there was a huge amount of improvement to gain from a few basic upgrades.

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How to Plan a 2015+ WRX FA20DIT Build

Subaru WRX / WRX STI

How to Plan a 2015+ WRX FA20DIT Build

By: Alan Jackson / October 5th, 2016

So you have just purchased your dream car and you are now looking to make it your own. Where do you start? Where do you go? What are you going to do? You need to sit down come up with a goal, prioritize, plan, and then realize your goals. This is something that is both very easy, and very difficult at the same time.

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Project Blue Boxer - Part 1: Tuning

Subaru WRX / WRX STI

Project Blue Boxer - Part 1: Tuning

By: JP Alonso / July 25th, 2016

Our 2013 Subaru WRX sedan was purchased used in completely stock condition.  It originally had about 13,000 miles on it so it was very fresh and ready to accept some modifications.  Our approach with this project is different than what we've done before.  To be frank, we're not interested in pushing this car to the limit which is different than what we typically like to do (take, for example, our fragmented, blown engine block in our Ford Focus ST as a result of pushing the limits too far).  Our WRX was bought with the intention of educating our WRX customers, EJ25 enthusiasts specifically, and anyone else interested.

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