i have done this mod , i have better throttle response , a litttle more oomph, and about a mile per gallon betterfuel economy , after you get used to not putting your foot into , because it sounds so awesome. i like the fact that if you dont like this mod , jsut screw the cap back in and your back to stock. one problem i have found , it tends to stumble around the 1500 to 2000 rpm range in second gear, i have not done any exhaust work yet , and that may be why , i am using a k and n filter, but i dontthink thats the cause , bc i pulled it out to clean it the other day and put in a stock filter while the k and n dried and such and it did the sane thing. but i do love the sound and i feel jsut from the seat of my pants that its got more power and oomph. i did also notice that i run at lower rpms to maintain a speed ( some say this isnt possible , but at 70 mph before mod i was at 3200 rpms , after mod at 70 im at 2900. ) try it and if you dont like the results putthe cap on and run it stock .

airrikk17