01-30-2015, 12:57 AM
Pro M meters were the first commercially available performance MAF meter for 5.0's back in the day (early 90's).They were developed by Bob Atwood, a former Ford engineer. His meters use re-calibrated Ford electronics to measure the air flowing through the larger meter. Pro-M meters are believed to be of high quality but that does come with a larger price tag.
C&L meters use interchangeable sampling tubes which is basically a small chamber that surrounds the hot wire in the meter. This method kinda tricks the stock Ford electronics. Using a larger sampling tube allows more air to flow over the hot wire inside the meter..requiring more voltage to keep that wire at its required temperature level. Since the C&L meters use unaltered Ford electronics they are cheaper.
As for the cold air kit, I dunno. Most all of the cold air intakes are made of aluminum or steel (some chromed) which will become heat soaked once the car is at operating temp...so how much is that really helping you? The factory stuff is made of plastic/rubber for a reason. If you can find one of the old school JLT True Cold air intakes (ebay or the forums maybe?) that would be a worthwhile investment as those were made out of high quality plastic with a straight shot design. If it were my car I'd just swap the meters, ditch the factory air silencer as you've already done, and drop in a stock replacement K&N untill you can come across a JLT kit (pictured below).
![[Image: 9495GTCAI.jpg]](http://www.atomicperformance.com/ProductImages/jltperformance/9495GTCAI.jpg)
C&L meters use interchangeable sampling tubes which is basically a small chamber that surrounds the hot wire in the meter. This method kinda tricks the stock Ford electronics. Using a larger sampling tube allows more air to flow over the hot wire inside the meter..requiring more voltage to keep that wire at its required temperature level. Since the C&L meters use unaltered Ford electronics they are cheaper.
As for the cold air kit, I dunno. Most all of the cold air intakes are made of aluminum or steel (some chromed) which will become heat soaked once the car is at operating temp...so how much is that really helping you? The factory stuff is made of plastic/rubber for a reason. If you can find one of the old school JLT True Cold air intakes (ebay or the forums maybe?) that would be a worthwhile investment as those were made out of high quality plastic with a straight shot design. If it were my car I'd just swap the meters, ditch the factory air silencer as you've already done, and drop in a stock replacement K&N untill you can come across a JLT kit (pictured below).