They have been replaced by Krieger (something like that). The are the older version and most, from what I've seen on e-bay, come with no warranty. I saw the Krieger's over the summer at Pocono Raceway during the cycle races and all I can say is I wouldn't buy one. The just looked like they weren't made with the highest quality stuff. The exhaust end of the pipe wasn't even polished it look like it came out of a mold and got hooked to the can. That's my take on it. Hope that helped.