What is the diameter of the stock exhust pipe on the xB? Look at these exhust tips- http://www.brandsport.com/exhausttips.html Thanks so much

I think it's 1.75 inches 8)

The bottom 2 in that link should fit right over the factory tip. I think the 4inch one looks the best. I had the APC 3.5 in. stainless tip and it fit over the stocker without removal. good luck.

stock is 1 5/8"

dam small pipe always givin everyone trouble for tips. :sad: