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WeezyRT
07-11-2010, 04:54 PM
Which hat are you guys running? 4150 series or 4500? O-ringed or not? 4150 also comes in a pro series. Or does it even matter?

http://www.superiorairflow.com/

GoFastGray
07-11-2010, 07:24 PM
4150 polished non O ring. And had it powder coated.
The boost already blew the gasket out a hair. Just have to keep spares on me at the track. Not a big issue, happened once so far and just loosened hat, adjusted gasket, and tightened it back down.

Lederip
07-12-2010, 01:37 AM
Which hat are you guys running? 4150 series or 4500? O-ringed or not? 4150 also comes in a pro series. Or does it even matter?

http://www.superiorairflow.com/


4150 with o-rings never had a gasket leak