An in depth look at how and why we make the parts the way we do, along with evolutionary changes to existing parts.
Cold Air Intake System Design and Testing Our intake system started out simple using a combination of silicon steel and some other sheet metal parts. In dealing with other cars with MAF (Mass Air Flow) sensors we knew it was important to keep diameters and orientation of the sensor similar to stock. Looking to make [...Continue Reading...]
As with many of our ALTA products we start out simple and build upon them until they meet our customers’ demands and or our own internal goals. With any new vehicle we start with the things we know customer are going to want. The obvious things like exhaust, swaybars and of course the intake! When [...Continue Reading...]
Evolution of the ALTA R56 Intercooler ALTA was the first to bring you a Larger Front mounted intercooler for your R56 and JCW, we were the first to bring you proven dyno performance, we were the first to being you solid temperature data, and the first R56 to break the 280WHP mark with our intercooler, [...Continue Reading...]
The term uppipe, where did this come from? Definitely not from Subaru, but most likely from some crazy Subaru Enthusiast. Where ever this term came from, I remember first seeing the term use on I-Club forums (now known as NASIOC). This strange part people were calling an Uppipe is what drove me to start coming [...Continue Reading...]
Dyno Chart Showing HP and TQ on Stage 3 Legacy GT This graph illustrates the significant torque gains throughout the power band. This car was a 2005 Legacy GT with a Stage 3 setup. This includes a PERRIN TMIC, ECU retune, Turboback exhaust and uppipe installed. The only change between runs was the OEM header [...Continue Reading...]
NEEDS TEXT FROM NASIOC Progressive-ness of the PWI-2 system. The PERRIN PWI-1 system stood out amongst competitive systems because of it being one of the first truly progressive water injection systems. The new PWI-2 is still just as progressive as the older system but it stands out from the crowd for a few [...Continue Reading...]
Everyone has an air filter on their engine (at least you should!) and this goes true for all types of things that that suck in air constantly. Yes even you have a filter; your nose has them built into it as does your air passageway. But we are talking about your car here which sucks [...Continue Reading...]
This collection of parts above are typical items you will find in a modern boost control system and many aftermarket type system.s Some items may not be reconizable, but after you read this, i think you will be able to pick out any of those parts and understand what they do and how they work. [...Continue Reading...]
As promised here is our data! Sorry if the formating is a little confusing. Good to hear from Matt, we havne’t heard from you lately. Must be all those MC2 articles! First off, i know understand why there are lots of doubters out there. It could be because our dyno graph wasn’t on our site. [...Continue Reading...]
Like we weren’t going to make a new intercooler for the X. For one, the stock one is pretty restrictive, and two, in order for the EVO to compete with the STI in our EVO vs. STI project it really needed one! Besides the gains we saw there is one very important thing we found, [...Continue Reading...]
