I heard that some folks who are running the FX engine are using the Werks 2058 pipe as opposed to the FX 2108 pipe. Is this a matter of preference?. Or does the Werks pipe do something that the 2108 doesn't for the motor?. Is there an appreciable difference in performance when using the Werks compared to the FX pipe?. Thanks.

curious to know why FX engines would be registered in australia?? hmm ari bakla has had good results.. so no doubt its a winning design ...