Quote:
Originally Posted by WRX06TR
Do you have a downpipe? I believe the HKS is a 3 inch exhaust that doesn't taper at the downpipe so you may have a fitment issue. And the stock downpipe uses a donut gasket so a regular 3 inch gasket won't work, but you will need the 3 inch gasket for the mid pipe and axel back section.
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Interesting. I didn't think of that as an issue. You're right that it's 3 inches and that it doesn't taper.
I've done some google searches and found that about half say that it won't fit on the stock dp and half that will fit on the stock dp. If it doesn't end up fitting on the stock dp, I'll buy a downpipe, but that would also mean a tune, right? I've found posts that say I can use the stock donut gasket, others that say that they had to use a regular 3 inch gasket... I guess I'll have to wait and see when I go to install? It couldn't hurt to have both I suppose.