On my '05 Patriot (C-13), my filter minder never gets lower than midway in its range, even w/a new filter. Filter minder will reset to zero when pressed, so I know its working. I would love to see less restriction on the intake to my Big Cat.
A while back, a fellow member of this group from Manitoba (I believe) swapped his intake piping from 5" dia to 7" as used on the C-15. Big improvement, he said. Now my question; On the electronically controlled Cats, like my C-13, aren't all the fuel parameters set by the computer? If so, won't the various sensor readings 'compensate' for any non-significant intake restriction and will still set the fuel flow to the correct (stoichiometric) ratio? So what is to gain by reducing inlet restriction? Less restriction is better, understood, but will this result in a measurable mileage gain, cooler temps or??
Just pondering, and Happy Easter!