Halltech's 2014-2020 Corvette Stingray (and Grand Sport) cold air intake. Please determine how many PCV lines in your application. GM started using 1 PCV in 2017, but we see many 17s-19s with two PCV lines. This is critical information to avoid returns. All systems ship with our High Flow K&N filter. The Agapostemon Green SuperFlow filter is an optional upgrade.