FINALLY TIME FOR SOME GOOD POWER UPGRADES!
After talking with my good friend and Subi "know it all" Jeff Perrin I have decided to make room in the budget for the PERRIN Equal length header we make. He swears it'll spool the turbo sooner and have decent gains even on the stock turbo, and it'll even be more of a benefit for the UPGRADED snail we have planned.
The header is NOT a simple bolt on for the WRX as it needs a few OEM Subi parts to go with it (the header is designed for the STI). I needed to get the STI Oil Pan, Oil Pick-up tube and decided to get NEW OEM gaskets for the head flanges and up-pipe flange.
To accommodate for the different pan shape the oil pick-up is moved, notice the different shape of the support bracket. (sorry for the blurry picture
) The old WRX Oil Pick-up is the darker and dirty looking one.
Here is another angle of the Oil Pick-up tubes. The WRX one has a large open mesh pick-up area, the STI has a smaller opening before the mesh (more vacuum?) Again sorry for the blurry picture
Here is a picture of the oil pans. The WRX is the dirty one, I am holding them so they are clocked the same, notice the differences?
Picture from under the car with the oil pan and oil pick-up removed. To install new pan, make sure you clean the mating surface.
Picture from under the car again with the STI Oil Pick-up tube installed.
Header installation almost done.
Sound clips are coming but opposite of popular belief you can still tell its a Subi Boxer Engine, its just a little mellower.
Yes, a little loss down low but good gains up top. Stock turbo, Stock down pipe.
Click here for results with bigger turbo and 3" down pipe.