i would keep it...never know when something bad is gonna happen to your aftermarket stuff. My friend had his car stolen...and they ripped off his exhaust, Mirrors
, front lip, and stole his radio. Luckily he had all his stock stuff still so his car is just back to stock. If he didnt keep all that stuff he would have to find replacements for all of the stock stuff. It may also be a good idea to keep your Intake
...that way if you suck water into your engine with your CAI
you can put the stock Intake
on again and have it covered under warranty by acting like you dont know what happened.