Community Member Credit: Unklejoe
This is “version 2″ of my manifold. The previous design had the inlet coming in from the side and my car made 260whp with that setup. I re-designed it to have the inlet come in from the rear for better flow. I haven’t dyno’d the car on the second version of the manifold but the MAF voltage is slightly higher in the upper RPM’s indicating better flow.
The manifold is made from 1/8″ aluminum, all tig welded by a friend. The piping is 3.5” all the way. The throttle body flange is for a 2009 throttle body. This throttle body will work on the 02-08 as well, you’ll just need the harness. The 09 throttle body is better because it is 75mm as opposed to 70.
This fits on my 2002 perfectly and clears everything. I had to re-route some vacuum lines (obviously) because of where I made the vacuum ports. As far as throttle body placement, it works in my car, but PLEASE COMPARE PICTURES TO MAKE SURE IT WILL CLEAR EVERYTHING IN YOUR CAR. I had to move my battery to the trunk for the filter to fit. You could probably get away with a silicone bend right before the battery though.
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