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Old 01-08-2013, 11:28 AM   #14
Scooby Newbie
Member#: 325292
Join Date: Jul 2012
2004 Impreza WRX


Originally Posted by careercadaver View Post
I would also recommend the spacers. The spacers are Phenolic material which provides a heat resistant barrier between the block and tgv's. You'll obviously need to double up on gaskets but this will help with heat soak. You'll want the 3mm unless you're going FMIC as well, then you can get away with 7mm. I would also consider painting of powdercoating the manifold and tgv's as there's not going to be an easier time...
I will probably stick with a FMIC. I am nervous to dump a bunch of money on the 2.0 block. I think it will be better to upgrade a couple years newer and then start the heavy mods on the 2.5 block in a bit down the road. I do think the TGV's and spacers are a good idea however, and not too much $.
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