What material is the stock 2007 WR450 header?
Posted February 25, 2008 - 01:17 PM
I have heard that the stock header is Titanium.....but also that is is just thin walled stainless tubing. Which one is it? The Yamaha specs don't say, and I cannot find anything in the owners manual.
I need to know because I want to have an Oxygen sensor bung welded in so I can do some wideband O2 datalogging to get my jetting just right.
Posted February 25, 2008 - 02:15 PM
Posted February 25, 2008 - 02:51 PM
The dealer I bought my bike from had already done some tuning before I got it, so there was already color change to the header material.
Posted February 26, 2008 - 08:55 AM
Posted February 26, 2008 - 12:39 PM
The stock header turns slightly yellowish and it takes much longer to change color.
Posted February 26, 2008 - 01:39 PM
Posted February 26, 2008 - 07:30 PM
When did it change?
I was just pondering my header the other day and after a year it still looks pretty good and knowing that my 04' was Ti stock and it pretty much looked like it had been dragged behind the bike after the first 6 months... I had just assumed the 07' was Ti too:excuseme:
Posted February 26, 2008 - 10:45 PM
Posted February 26, 2008 - 11:00 PM
'03/'04 .... Ti Header - p/n 5TA-14611-00-00 ... $205
'05/'06 .... SS Header - p/n 5TJ-14611-00-00 ... $128
'07/'08 .... SS Header - p/n 5TA-14611-10-00 ... $121
These were Zanotti's prices and the significant discrepancy in price between the 1st and 2nd gen 450's can only mean Ti was used at first and then Yamaha switched to SS. The price separation was even bigger using Bike Bandit. Also, the majority of the articles I've seen support this ...SC