If you're "craving more power" (as you stated), downpipe is way to go for power gain.
Exhaust will give you minor weight saving and cool sound but the power gain is very minimal.
If you're "craving more mods", exhaust is way to go since you will have great, unique exhaust note.
But an active hybrid owner from tree hugging Canadia putting environmentally harmful downpipe seems a lil odds in my opinion.
