|
The silmotor headers are 45mm dia throughout and the std ones are about 40mm I think without but the collector box section that the std headers have is where the big restriction is. Check out the 900ss forum as there are a load of threads about them, I had a few headaches fitting mine, but apart from that and loosing one of the small screw in plugs today on a long run out they're great.
By the way are the DP pipes you have low level ?
Ian.
|