looking for a new air cleaner to go with the exhaust system im going to buy.........planning on getting the Rinehart extreme true duals ......but was wondering if anyone has any experience with thease air cleaners........they look like cfr knock off's.........not real big on the name on the side just want it to breathe properly......have heard ordering anything from china off e bay is not a great idea........just looking for other opinions/ experiences.