YOU KNOW KIPER ID RECOMEND DITCHING THE CVEC AND SAVE YOURSELF SOME CASH AND GET YOURSELF A STOCK ASSOCIATED PIPE FOR THE TMAXX, IT'LL REALLY BOOST THE PERFORMANCE AND FROM BEING AT THE LOCAL TRACKS HERE IN OREGON THATS ALL MANY RACERS HERE RUN ..JUST THE STOCK GT PIPE AND TRAXXAS'S BIG BORE HEADER AND BEST OF ALL YOU'LL SAVE YOURSELF ANY WHERE FROM 20 TO 30 BUCKS AND THAT WOULD BE GREAT FOR MORE FUEL