Pro Circuit Stainless Steel Header - 4T03450H
- Part #: 431841
- Manufacturer Part #: 4T03450H
Overview of Pro Circuit Stainless Steel Header - 4T03450H
- Pro Circuit is a custom precision engine and suspension building facility
- Stainless steel headers are specially designed to improve performance when compared to stock headers; built from 304 stainless steel to ensure maximum durability and corrosion resistance
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 - 4T03450H
Fitment for Pro Circuit Stainless Steel Header - 4T03450H
Part 431841 fits the following machines
|2003 KTM 450 SX Racing 4-Stroke|
|2004 KTM 525 SX Racing 4-Stroke|
Reviews for Pro Circuit Stainless Steel Header - 4T03450H
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.