They make a world of difference to gear-related vibration issues. If you didn't have any of those then...well...what did you expect?If you bought it expecting a performance gain, well...P.T. Barnum said something once.JON RIO said:Not much of a difference at all.
Not worth the retail price of $150.00!!!!
I got mine for $60-so I didn't get riped on that bad.
Save your money for something else in my opinion.
And they all claim 15 hp for a throttle body too, when the gain on a stock engine is precisely nothing.JON RIO said:50 proof didn't ask a direct question-So I gave my experiance with it-which is better that notting-right?
Also, in adds for this product....They almost always claim to improve engine performance to some degree.