I have a 15 and pulling my fifthwheel it can get toasty 230ish but it recovers fast. There have been many threads about this and I have yet to hear of anyone burning one down.
Stage II is an afe filter. A non vgt bs a comparable sized vgt turbo will always spool slower. Your filter whether stg I or stg II will not make a noticeable difference when taking off from a stop or tip in. The difference in the sizes of cai are more noticeable on the top end when more flow is...