Anytime.
Also, you might need to look for Trinity In-Line Pipe and RB Concept Black Hard-Anodized Pipe. Both are designed for revo. I like the Trinity set alot because it come with 2 headers (stock and big block).
Little info for the Trinity:
This pipe set fits the stock 2.5R engine as well as any other rear exhaust big-block engine such as the Sirio .21, .27, .28, OFNA Picco .21, .26, Team Orion Wasp .21, .26, .28, WERKS .21, .26, .28, Novarossi & RB Concept .21-.28 or any other .21-.30 size rear-exhaust engine. This pipe will drastically improve bottom-end torque on the stock 2.5R and give any big-block engine room to "Breath". It comes with 2 headers-One for the stock engine and one for big-block engines, so you can switch from the 2.5R to a larger engine in minutes!