Mid pipes (X-Pipe, H-Pipe, or Y-Pipe) come in two main varieties, those with and those without catalytic converters.
For mid-pipes that come with catalytic converters, a new or updated tune is not required in most cases, as this should allow for the car to operate without causing any Check Engine Lights.
For mid-pipes without catalytic converters (off-road), a Check-Engine Light is often triggered due to the removal of emissions systems, like the catalytic converters or EGR systems. The tunes that Bama Performance offers do not disable any Check-Engine Lights, so no new tune is needed for these off-road mid-pipes."
**Be sure to check with your local authorities to verify what is & is not legal in your area.