The angle of the tube points it directly at the inlet into the block. The ID of the tube has been increased, and so has the thickness. No bend means no restriction, and even better coming from the OEM tube because it uses a more restrictive pinch bend. The obvious big change is that the tube has no bend. A means for improving performance was taken advantage of during the design process as well. Of course, our own spin on improvements, besides the obvious, had to be made to assure set-it-and-forget-it reliability that comes with our products. We are known for making the best Subaru Performance Oiling Products money can buy, so addressing this was right up our alley. We pushed on the screen of new OEM pickups, and several popped wire strands, without a lot of effort. The other is that spot weld process embrittles the screen. One is that the screen is creased where the retaining ring is crimped over it. There are a couple of flaws with this process. The OEM pickup screen is crimped in a retainer and that assembly is spot welded into the pickup ‘can’.
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