Pro Circuit Stainless Steel Header - 4QY01660H
- Part #: 446806
- Manufacturer Part #: 4QY01660H
- MSRP Price: $274.95
- Our Price: $247.46
Overview of Pro Circuit Stainless Steel Header - 4QY01660HOwned and operated by Mitch Payton, Pro Circuit is a custom precision engine and suspension building facility. Pro Circuit's owner has invested over 25 years in engine building and machine shop techniques
- Stainless steel head pipes are specially designed to improve performance when compared to stock head pipes
- Built from 304 stainless steel to ensure maximum durability and corrosion resistance
Note:Rejetting is recommended when using this headpipe
Note: Exhaust discoloration (blueing) is caused by engine conditions such as cam timing, fuel-air mixture, operating temperature, etc. It is not the result of defective manufacturing, therefore it is not covered by any warranty. See the Chems/Lubes section for products to help remove or prevent exhaust discoloration.
Specs for Pro Circuit Stainless Steel Header - 4QY01660H
Fitment for Pro Circuit Stainless Steel Header - 4QY01660H
Part 446806 fits the following machines
|2005 Yamaha YFM660R Raptor|
|2004 Yamaha YFM660R Raptor|
|2003 Yamaha YFM660R Raptor|
|2002 Yamaha YFM660R Raptor|
|2001 Yamaha YFM660R Raptor|
|2005 Yamaha YFM660RLE Raptor Limited Edition|
|2004 Yamaha YFM660RLE Raptor Limited Edition|
|2003 Yamaha YFM660RLE Raptor Limited Edition|
|2002 Yamaha YFM660RLE Raptor Limited Edition|
Reviews for Pro Circuit Stainless Steel Header - 4QY01660H
The original header flange was way too thick to use the drz400 header bolts so I had to take the flange off of the stock pipe and slightly modify it to be used with the new header. Was a little hard to get it to bolt up to a Yoshi slip-on too but I was expecting that. Overall it's a great mod for the price, I could feel the bike gained some mid range and top end power.I would recommend this item to a friend.
Worked for me.
had to replace stock header on my 06 crf250x, I was a little concerned about it fitting as my local dealer told me it probably wouldn't. I phoned Dennis Kirk and they confirmed with their tech that it would fit and when it came I had no problems installing. I also saved a reasonable amount of money buying thru Dennis Kirk , which was key in making the purchase in the first place.I would recommend this item to a friend.
I would recommend this item to a friend.
Better performance than stock and much cheaper.
I had to replace the header on my 450 due to damage to the stocker. This one was much cheaper than replacing with OEM and I saw increased performance over the stocer (in it's pre-damaged condition).I would recommend this item to a friend.