Popcorn limiter

The popcorn effect is the sound made at the rev limiter on some performance cars,
where the cut is staged rather than clean. It is a limiter behaviour rather than an overrun
setting.

Same caveat as overrun crackle: it puts heat into the exhaust, and an aggressive setting
is hard on a catalyst. We keep it sensible unless the car is a competition vehicle.

For the trade

This is one of the jobs available through our dealer file service. Send the
original read, tell us the vehicle and what you need, and the file comes back
checked. If a job carries mechanical conditions on the car, they are listed in the
coverage table below and they apply to your customer’s vehicle too.

More about becoming a JFA tuning dealer