3.3TT Do I need a tune for new HKS sparkplugs?

[jakkwag]

Just got my HKS M45iL plugs in and was wondering can I install them now when I only have BMS intake and catless secondary downpipes or do I need to wait for a tune.

 

[Ohiocruiser]

I run these in my completely stock 3.3. Don't have any tune