Billet insert for classic jet spool whistle sound enhances turbocharger aesthetics and sound
Aftermarket upgrade increases turbocharger uniqueness and visual appeal
Performance-focused modification adds a 3-4 day lead time for custom fit
Professional installation ensures compatibility and reliability
How to make your turbo spool louder
This modification will give your turbocharger the classic jet spool/whistle sound that was found on the HKS T51R series turbochargers. The Billet insert not only looks amazing it also provides a unique look to your turbocharger. This upgrade will add an additional 3-4 days lead time before shipping back
