I have had them on many cars/trucks. Emissions are cleaner (verified at a COLORADO EMISSIONS FACILITY)! I have noticed a slightly peppier response, and better fule milage in previous cars. Can't verify any of that happened to my 5, as I put it on days after I bought it.
I know on my jetta - there is a real problem of fouling the MAF (oil from the aftermarket coating the sensor) - is this a problem with Mazda 5's? I'm guessing maybe no since it's not a forced induction engine?
I know on my jetta - there is a real problem of fouling the MAF (oil from the aftermarket coating the sensor) - is this a problem with Mazda 5's? I'm guessing maybe no since it's not a forced induction engine?