Are catted headers legal. As with every catted header (stock or RoadsterSport or Magnaflow), not recommended for track use or with turbo or supercharger. You won. Dec 25, 2024 · Long tube headers are legal in most areas, provided the vehicle passes emissions testing. So, requirements are that it has to be for the 2022+ MY/not a carry over from the previous model unless specified it HKS has released this 4-2-1 equal length catted header system for the Scion FRS and Subaru BRZ. Long tube headers are illegal everywhere on any pollution controlled vehicle. Mar 12, 2007 · Nothing, even if it's catted, with long tube headers is emissions legal in any state. This WILL fit the stock over pipe and any other aftermarket overpipe. If modifications comply with this requirement, it’s more likely to be acceptable on the road. Jul 25, 2025 · The primary difference between catted and catless downpipes is that catted ones contain catalytic converters that clean exhaust gases and are legal, while catless downpipes enhance airflow but do not meet legal requirements. The exhaust gases from your car will be toxic both to the environment and yourself. ewqi 19 3wzfx u8r thfsnhb iz4df bh 1cb1c dguep yp4nh