martinx71 Posted January 22, 2015 Share Posted January 22, 2015 Hey, quick question, can't find any info online. Does anyone know what the hole spacing on the stock uppipe to manifold gasket is? Ordering one online for my big pipe up and won't be with my car until the end of the week. Link to comment Share on other sites More sharing options...
MrTris Posted January 22, 2015 Share Posted January 22, 2015 Do you mean big UP, as in, larger diameter? Link to comment Share on other sites More sharing options...
Max Capacity Posted January 22, 2015 Share Posted January 22, 2015 Have you called local auto parts stores, or taken the pipe to them and have them match it up. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
MrTris Posted January 22, 2015 Share Posted January 22, 2015 Have you called local auto parts stores, or taken the pipe to them and have them match it up. That's a great idea, too. Am I the only one that read the OP as, 'bigger UP' ? If this is the case, we should probably let him know that a bigger UP will lose spool and power on a stock VF40/46. Link to comment Share on other sites More sharing options...
martinx71 Posted January 22, 2015 Author Share Posted January 22, 2015 Tris, yeah it's a bigger diameter pipe, I bought it on ebay to replace the catted stock one while I was replacing the turbo, and the seller stated it was a stock STI up. It's definitely not and the pipe is thick to the point that the OEM gasket doesn't fit. The holes line up but the pipe is huge. Thinking about just gutting the stocker. Thoughts? Link to comment Share on other sites More sharing options...
MrTris Posted January 22, 2015 Share Posted January 22, 2015 Tris, yeah it's a bigger diameter pipe, I bought it on ebay to replace the catted stock one while I was replacing the turbo, and the seller stated it was a stock STI up. It's definitely not and the pipe is thick to the point that the OEM gasket doesn't fit. The holes line up but the pipe is huge. Thinking about just gutting the stocker. Thoughts? I'm really not a fan of gutting the stocker. It's got a lot of nasty stuff in that that you shouldn't be exposed to, if you can help it. See if you can get the seller to take the item back, or resell it. Does it not have a Subaru PN on it? How do you know it's not an OEM STi UP? Link to comment Share on other sites More sharing options...
martinx71 Posted January 22, 2015 Author Share Posted January 22, 2015 It's been a little over 2 weeks since I bought it and the fitment is good so I'd feel bad returning it after marring it up in the install process. The pipe looks nothing like the OEM unit, it looks a bit like the perrin big tube one minus the perrin logo. The flanges are very thick and the welds are very good, although it's welded on both the inside and outside so it's definitely not a perrin part. The only issue I had with it was that the upper flange needed some truing up. (not quite flat) Link to comment Share on other sites More sharing options...
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