air and fuel modification for x mas
looking to beef up the vulcan a bit. I put the cobra slip ons on love em but a drop in fuel mileage and popping is happening, so i want to get the fuel processor and air filter maybe. What is the best way to go about this to get good fuel milage, more power less popping, and still maintain good drivability for long hauls? any input is great thank you.i want to know what is best brand and fixed or adjustable fuel processor and of course a k and n filter.