I have an o8 kingpin and i am looking to buy the rpw slash exhaust ,does anyone have some info on these pipes? How do they sound,look performence and is there alot of popping with these pipes? do these pipes come with everything you need like a flashcard and all hardwear? I like the ones that are half chrome and half black !! any info would be great before i make this purshase!! do they have a nice rumble to them ,because i am looking to get some good sound out of them!! thanks!!