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Message: <blockquote data-quote="ctandc" data-source="post: 1585135" data-attributes="member: 30345">The problem also applies to the later redesigned PI intakes as well. They will all eventually fail - it's where the plastic meets the cylinder head underneath the alum coolant crossover. Age / miles and heat cycles. Last Summer I hit up several local junkyards and a friend and I pulled intakes from 4 or 5 later model Ford/Merc/Lincoln 4.6 PI engines and all of them had signs of coolant leakage / cracking at the plastic. Just replaced the intake in my '04 GT because of a very slight loss of coolant, only under pressure. Took a pressure tester to find it was leaking just enough to cook off coolant under the alum crossover.  I ended up going with the Summit replacement intake. It's IDENTICAL to the Ford replacement intake. The only difference is one has FOMOCO molded in the plastic the other has Summit. The instruction sheet and hardware are IDENTICAL.  $340 vs $199. If I hadn't of found the Summit I was leaning Speedmaster, but I have heard some concerns with how bad the casting flash is on the Speedmaster, whether that's the case or not I don't know.The newer PI intake does lose some power over the original - but my 04 is a NA 2V and my daily for now - and I highly doubt anyone could tell any difference driving the car. The problem area for the old redesigned PI intake:[ATTACH=full]48814[/ATTACH][ATTACH=full]48815[/ATTACH]The new version - it's definitely not a Dorman copy - I forgot to get pics.[ATTACH=full]48816[/ATTACH][ATTACH=full]48817[/ATTACH]The Speedmaster would have definitely been in the running if I was dropping $340+ for the Ford version. I didn't look a bunch, but I ran across a lot of "out of stock" messages when looking initially at the Speedmaster intake FWIW.</blockquote>