MAC Prochamber

Discussion in 'Fox 5.0 Mustang Tech' started by silverlx5.0, Dec 5, 2003.

  1. Whats the deal with cats on the MAC Prochamber, do they not need them, or is it for "off road use only?" Will it pass emissions? Thanks

  2. It has no cats and won't pass emissions test. That doesn't stop people though.
  3. didn't stop me got to do the 2 year swap back to the stockers when its time
  4. I hate cats. I prefer dogs. :shrug: :)