i

Free shipping on all
orders over $149

The Moditorium

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

Using E85 in a Subaru WRX/STI EJ25: A Guide

Subaru WRX / WRX STI

Using E85 in a Subaru WRX/STI EJ25: A Guide

By: Alan Jackson / November 8th, 2023

There is a lot of hype around using ethanol, or E85, in your Subaru WRX or STI. There are many benefits to it but it needs to be done correctly for a safe, effective increase in power and torque. Knowing how to make it work is the first step in setting up your WRX or STI for success.

Read More
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 / November 8th, 2023

A catch can is a device installed between the engine's crankcase and the intake system. It “catches” all the oil vapor that passes from the crankcase back into the intake system where the crankcase vents. This oil vapor has a low octane rating and also coats the walls of the entire intake tract and builds up over time. When the junk from the crankcase makes it's way into the cylinders, it can cause detonation and reduce the performance of the engine.

Read More
3 Port Electronic Boost Control Solenoid: What and Why?

Tech

3 Port Electronic Boost Control Solenoid: What and Why?

By: Alan Jackson / November 8th, 2023

That is a mouthful, so from now on, I’m going to refer to this as EBCS. But what is a 3 Port EBCS? How is it different than stock? Why is it a good upgrade? Do you really need it? Let’s knock those questions out one by one…

Read More
Focus ST Turbo Upgrade - The Ultimate Mod

Ford Focus ST

Focus ST Turbo Upgrade - The Ultimate Mod

By: JP Alonso / October 30th, 2023

Ever wondered if the hype is real? Here's your answer. Hell yes. Be careful though, if you take the plunge on a big turbo, prepare to never be satisfied with a stock turbo car ever again. It just won't be the same. The experience of a hard wide open throttle pull, holding 22psi, or more, all the way to 7,000 glorious rpm makes you mad that Ford gave you such a puny hair dryer of a turbo now that you know what boost can really feel like.

Read More
Why the Cobb AP Should Be Your WRX’s First Modification

Subaru WRX / WRX STI / Parts

Why the Cobb AP Should Be Your WRX’s First Modification

By: Alan Jackson / October 30th, 2023

Modified Subarus have been around for quite some time now and fortunately for our generation, modifying them keeps getting easier and easier. The Subaru WRX and STI are great cars out of the box but if you're reading this, you are probably itching to modify yours. In the world of 2015 and newer Subaru WRX mods, there are plenty performance parts to choose from.

Read More
How to Build a 400whp Focus ST

Ford Focus ST

How to Build a 400whp Focus ST

By: JP Alonso / October 25th, 2023

400whp (that's wheel horsepower just in case you've been living under a rock) seems to be the magic number in front wheel drive turbo cars. If you have one, you know what I mean. If you want one, it's probably because 385whp is way too close to 400 for you not to get there. It's almost like being in a club. "It has 400 at the wheel." It's one of the most proud statements you can make if you have a Focus ST and it's making that much power.

Read More