[69gmcc10]

I have owned 3 different GMT800s myself and worked/serviced several others of my friends and family members GMT800 and I could not agree with the direction this conversation is moving. I currently have a Spectre "CAI" on my 1500HD 6.0 and have had them on various other 1500 5.3s and 2500HD 6.0s in the past with similar results. All the "CAI" I have insalled have done nothing to improve bottom end torque and drive-ability, but have shown "marginal" butt-dyno results at about 5000 rpm and above. I did see a mileage increases, but that is directly attributed to my drivings style changing to try and get as much economy as possible after I purchased it, and that .5 of an mpg I did get quickly went away after I forgot about mileage and remembered I live in 'merica!

Things I like about the intake system is that the filter is washable (I am ocd so I keep it cleaned up) and when I opened the hood to jump my buddies powerstroke the other day both he and his friends complimented me on the size of my intake! That's about it.

Things I don't like about the intake system is that on one of my 5.3s and my fathers 6.0 it created a drone at a certain point in the rpm range that while sounded "fun" for a month got real annoying and both quickly found there way back onto the garage shelf. The MAF needs constant cleaning especially 50 miles after the filter has been cleaned/oiled. My filter is constantly trying to inhale the insulation pad on the hood and the top of the filter turns black! Finally, it provides almost no benefit at all unless the engine is running over 5K rpm and I just dont travel down the road at the rpm very often.

The only reason I have the CAI still on my 1500HD is because I had a custom tune done that was done after my CAI and my Magnaflow exhaust system was installed and I don't want to change the variables of that because it runs so well with the current set up. Almost want to weld the hood shut.

In my current 2wd 5.3 and my brother-in-laws 4wd 5.3 I installed AFE dry stock replacement filters and just the filter was every bit as good or better than the CAI on the other 5.3s I have owned without the oily MAF issues and it saved hundreds of dollars.

I will never buy another aftermarket intake system for a stock vehicle again! Exhaust, yes and a custom tune, HELL yes (best thing I ever did), but never again an aftermarket intake.