I'd save money and go with a airaid mit and a high flow filter.

But if I had to pick between the two you listed, I'd get the plastic one. I think it would blend in better under the hood and not stick out woth glaring chrome, which imo would look out of place.

 

Unfortunate that the K&N 63 series no longer comes with a lid on the top. I know they supposedly seal against the hood insulation, but still.....

Line the airbox shielding with chrome insulating foil and pretend you have a CAI!

 

Not too sure what big blue is talking about the 63 series doesn't have a lid. I'm running the 63-3070 on my truck. I'm loving it. Sounds unreal when you need to accelorate to speed and when it kicks down to v4 it's got a little rumble to it.

 

I had the 63 FIPK on my 05 great intake..did everything it was supposed to. I put a 77 on my 15..to me a chrome metal tube reflects the heat better or as they say in the biz...less heat sink. It's performs well and sounds great as well. I don't think you could go wrong with either.

 

I would go with an AIRAID MIT and high flow filter too. But it you're sticking to K&N, the 63. The 77 is useless with that metal pipe.

 

I am also running the 63. Changed the tone quite nicely.

 

Not too sure what big blue is talking about the 63 series doesn't have a lid. I'm running the 63-3070 on my truck. I'm loving it. Sounds unreal when you need to accelorate to speed and when it kicks down to v4 it's got a little rumble to it.

The 63 series intake on my '13:
http://www.knfilters.com/search/product ... od=63-3070

The 63 series intake for the 2015:
http://www.knfilters.com/search/product ... od=63-3082

See; no lid.
Get black.

 

Don't waste your money on those aftermarket air intakes that supply warmer air than the OEM box.

Your truck came off the assembly line with a "CAI" and flows well. The restriction comes from the built in sound deadening chambers in the OEM air tube. Replace only the air tube with a smooth aftermarket tube from AirAid and you'll be set at a fraction of the cost. That setup on the GMT-900 out performed all but 1 aftermarket CAI's and also supplied cooler air. The only system that worked better than the OEM box and paper filter with the AirAid tube was Cold Air Inductions. That's the only aftermarket system that did show slight gains over the factory setup. The results on the K2 will be the same. If you want a complete kit and not just the tube (that's all you really need) Cold Air Inductions is the only way to go and that's been proven. Spending a few hundred ror warmer air makes no sense at all.

 

go with the air raid jr
http://www.gm-trucks.com/forums/topic/1 ... t-results/ and it beats the cold air inductions ^^^
i had the k&n 77 on my 03 gm it looked and sounded mean thats all.

 

This is what the 77 looks like installed. I swapped out the filter for a K&N's Dry-Flow filter from their BlackHawk model.
It sounds good, but I don't know if it does much more than that.