I'm assuming "Stage 2" refers to short ram intakes. If so, yes, they aren't worth it. Heat soak is a major issue.
Being that warranty is a concern, drop in filters are your best option.
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~Rob 
-DD Air Guide, Stillen G3 CAIs, 63mm Throttle Bodies, Motordyne M370, Berk HFCs, FI TDX CBE (non-res, CF), Sprint booster v3, Ecutek Dyno Tuned, and the list goes on...
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