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Message: [QUOTE="6.7Bison, post: 1543470, member: 32432"] Initial driving impressions and temperature data. Finally I was able to drive the truck after installing the intake. I did my same start up routine as the previous data runs above and did my morning commute with the truck. Let's start with my impressions. The truck definitely sounds more aggressive. It’s not too loud to have a conversation or to feel the need to turn it off in a drive through but I am surprised just how much the old intake was muting the truck. I can still hear my highway tires sing on the pavement so again it can’t be that much louder, but definitely more aggressive sounding. The throttle feels smoother. It used to have some hesitation when moving the truck from a stop with a weird pause when shifting from first to second. That seems to have smoothed over and the throttle seems more pleasant to operate for me. It might be slightly more predictable but I won’t confirm that without more miles on it. I would say the truck is more responsive but again want a few more drives under my belt before I commit to it. Towards the end of my commute I got on it and it feels a fair bit faster. Could be a placebo effect, but I’m not too worried about 0-60 times in an empty truck anyhow. Now for the numbers. After 5 minutes of initial start up and idle. Truck was parked inside a three sided shed: Ambient temperature was 41F. Intake air temperature was 48.2F. Really not a whole lot of increase in temperature. But the truck was cold. So far no real cause for concern. After getting warmed up during the commute at 60-65mph (engine temperature needle was directly in the middle): Ambient temperature was 41F. Intake air temperature was 43F. CAC temperature (directly after the intercooler) was 77F on the flats. EGT from the factory stock location 470F on the flats. Basically all in line with one of the previous runs almost exactly. Close enough it could even be a rounding or resolution difference between my monitor and the sensors. Just as I started to get into the steeper hills where I gather data my test took an interesting twist. I got the message on my dash that the truck had started a regen. After exhaust temps leveled out at the new higher level I saw the following: Ambient temperature was 41F. Intake air temperature was 45F. CAC temperature (directly after the intercooler) was 80F. EGT from the factory stock location 720F. The truck continued the regen into the end of my commute where I hit a couple stop lights and town speed limits. Sitting at a light for a good while as the truck finished up the regen I saw intake temperatures as high as 100F and CAC temperatures around 90F. From this test I can say with confidence my new intake does draw air from the engine bay. I can also say that going through a regen makes things very warm under the hood. Depending on the exact situation the increase in intake temperature over ambient can be drastic. For most scenarios I find myself in it shouldn’t be a problem. I drive 90% of the time at highway speeds where I normally catch a regen. If the intake does its job of more air with less restriction at or near ambient temperatures it should actually bring down soot load as I should have a more efficient and complete burn. This should make regens less often and quicker. By how much? Probably not a lot but still the problem should get better not worse. If you are someone who operates a truck in a lot of city driving scenarios this temperature data may affect your decision on selecting an intake. I’m not too concerned with the increase in temperatures I saw in this initial drive. I will continue to monitor temperatures and mpgs as I’m ready for a fresh fil lup after this commute. Should temperatures trend upwards or mpgs not improve I might look into trying to shield the engine bay from the intake. Right now, a 2 degree difference in normal driving (that could just be an error) isn’t worth pursuing. The jury is still out but so far I’m liking the intake overall for my purposes. [/QUOTE]