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Jan 1, 2010 | 05:19 PM

#16

OTTOMATIC

Senior User

Joined: Dec 2003

Posts: 331

Likes: 1

From: fl

I am installing the ITP HPX tomorow . When i figured time and fuel (closest Hyd shop 50mi) it came out cheaper.....................................

Jan 7, 2010 | 01:14 AM

#17

boertje

Senior User

Joined: Jan 2007

Posts: 132

Likes: 0

From: Coeur d' Alene, ID

Mine started leaking after 7 years so I removed it and installed the original factory plugs. No difference in the sound of the engine at idle or at any range of engine operation. I think I will just keep it off for the time being since I hear no difference whatsoever.