S&B CAI-FMGRS-15 JLT Cold Air Intake Kit 2015-2020 Mustang GT Supercharged Tuning RequiredTesting and Gains. We teamed up with the best in the business for testing and Tuning this kit. Adam Browne at Revolution Auto, Ken Bjonnes at Palm Beach Dyno and Brent Hughes at DTP Racing. Cars in the 600 630 RWHP range are gaining 14 20 RWHP TQ Cars in the 800 RWHP range are gaining 30 and up RWHP With proper Tuning for the added flow. Tuning Required Intake Tube With Molded In MAF Designed for power with great looks to boot. Fully computer Designed