You can make some improvements to the exhaust situation prior to the release of the Stage 1, 2 3 mods by removing the cats from the exhaust pipes. Once removed the exhaust has better flow and reduces the engine heat a bit as well. Also you get a slight improvement in exhaust note and maybe a bit more power. Combined with a high performance air cleaner the motor is much happier with less pinking.
Naughty naughty.
Ive seen (mostly heard) them without the baffles too.
