Unique Motorsports

Disclaimer: This article is written for information purposes only. I have done a lot of research on these subjects and though to my belief it may be true, I do not take responsibility for any misinformation. These are the most common questions I get and so I thought I would write a FAQ. If you have any questions or comments please fill out the feedback form.

How much boost will my Impreza handle?

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Finally a chance to build something using melted steel. Not sure what it is about basic fabrication work, but it’s almost always a good time. Add to that, I haven’t actually made anything in a while so it’s nice to keep the skills fresh.

The project started by loading up my welder, 4.5” angle grinder, electric die grinder, wire brush, gloves, welding helmet, porting bits and a few other misc fabrication tools into the Skittle and headed off to James for some work on his Beastly rear wheel drive Impreza.

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After making this picture video collage, it makes me wish I took more pictures. I’ll be replacing this post with a small write up and images later. For now though, here are the install pictures set to Linkin Park.

I have installed a few different types of headers and there are two brands that stand out for quality and fitment.The GT Spec Header and Perrin both stand out above the rest. Here are some photos and information regarding a pair of GT Spec headers on a WRX.

Most of this install is straight forward, there are however a few things to watch out for.

1. The lower cross-member will need to be modified to clear the headers. When I first heard about this I was a little concerned; however, after seeing how much it’s really not a big deal. Basically, just tap a flat piece of the crossmember in less than a quarter of an inch. I used a 2.5 pound hammer for this and with a couple of gentle taps it was done. Picture number 6 kind of shows this.

2. The 3 bolt flange is great for avoiding an up pipe leak between the exhaust manifold and the uppipe, however getting to those bolts is no easy task. Don’t let this discourage you though as the end results are well worth it.

3. Get some studs before starting this and have them installed as reusing the stock studs does not always work out.

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Due to a lot of requests, I decided to make another up pipe and let it go to the first buyer able to Paypal $200 which includes shipping. Depending on the demand I might be starting up production again.