3800 Valve Spring Retainers Model:Steel These neutral shafts eliminate the

These neutral shafts eliminate the HP loss incurred from creating this vibration

Using aluminum keeps these calipers 5 pounds lighter than the stock iron calipers

AEM’s High Flow Universal In-Tank Fuel Pump is designed for high performance naturally aspirated and forced induction EFI vehicles

it comes with the appropriate supporting mods to change your supercharger pulley for more power

3800 Valve Spring Retainers Model:Steel These neutral shafts eliminate theUpdate June 2021: We are proud to announce our new and improved modified steel retainers. These retainers have the weight of titanium but the strength of our traditional steel; the new design weighs in at only 8 grams vs 11 grams on the old design. On a 3800 you're saving 36 grams of valvetrain weight with our new design! These modified retainers are recommended for anyone swapping to a heavier than stock valve spring. New style pictured in the