And the first time you wreck, are upside down and rev the throttle there goes your extra runtime. I don't agree with the coolers of filters, and i wont run them. I tried them out, first time out i was able to go 10 on an alpha. Second race with them, tune wouldn't hold. I put a regular exhaust line and the tune was perfect. And i am very detailed about my stuff, where i check fuel lines all the time. As i said it just isn't worth the trouble. I am not saying you have to take my advice which some obviously wont, but keeping your car as simple as possible is the best way to finish a race. And that is the key to all racing. It doesn't matter if you can go 15 in practice if you cant finish a race.