is there a huge difference between the dynojet jetting kit and the jd jetting kit? i went to my local moto shop and they don't sell jd they only sold dynojet and being only $90aus compared to $145aus for the jd kit off the net i am umming and ahhing whether just to be a tight arse and go for the dynojet. he also told me that dynojet was made for aus version of the wr is this true or is he just trying to flog off his product? seens this is my frist post any info would be awesome. cheers.