Kuryakyn offers a select number of complete Hypercharger kits assembled with a Blood Groove-style trap door. The Blood Groove Trap Doors offer a styling alternative to standard trap doors; you get the same impressive performance no matter which style you choose.

• Can support engine build up to 90 hp (over 130hp with P/N 8498 Stinger upgrade)
• Multiple color upgrades & configurations
• Vacuum-operated butterflies for precise airflow and old-school hotrod styling
• Lifetime Kuryakyn-designed K&N filter element

Fits: 99-'01 Twin Cam with Magneti Marelli EFI