While my car was at the dealer for idling problems, the service advisor told me about the moosing noise from my engine. It will cost $184 to do the repairs to fix this. Is it bad for the engine to not do the repair and let it be? Is the TSB (TSB 96195 for the moosing fix)like a recall where the dealer has to perform the repair at no charge, or do I need to pay for it?

Thanks

metallic willow green 95 contour V6 ATX.
K&N Air Filter
Hoodliner removed
Remove Resonator soon.
Dynomax/Magnaflow Muffler soon.