Does the kit come with 1 or 2 controllers?

You can confirm the number of included controllers on the product page picture for the kit.

Two-valve exhaust system:

If the car has a two-valve exhaust system from factory, then the kit will come with two controllers, as pictured on the product page.

One-valve exhaust system:

If the car has a one-valve exhaust system from factory, then the kit will come with one controller, as pictured on the product page.

If you have an aftermarket exhaust that now has two valves, please contact us or leave a note when ordering.