I have a k&n intake and borla cat-back installed and a couple months ago I tuned my car with hondata running +6psi tune... there is this whistle/whine sound that comes on after 5,000 rpm... is it normal or what do you guys think?
Vehicle: 2019 Civic Hatchback Sport
Total tuned time: 2 months
Total tuned mileage: 3500 miles
Tuning device(s) used: Hondata Flashpro
Tunes used: Hondata +6 w/ intake
Fuel used: 93 from shell and Mobil
Additional engine mods: Borla catback, k&n cold air intake
Problems/issues: After I...