Description
Achieve performance with clearance using the HSI 38mm Short Cyclone Stack – budget-friendly velocity stack for Mikuni SBN 38mm carbs. At just 30mm tall, it clears SuperJet cylinder heads while delivering proven 100-200 RPM gains over flat adapters via cyclone-shaped airflow acceleration.
Clearance + Power
- SuperJet Head Clearance: 30mm height – no hood mods needed
- Proven Gains: Outperforms standard adapters in RPM and response
- Marine-Grade Build: Billet 6061, black anodized, 316 SS hardware
- Optional Gasket: Add 38mm SBN flame arrestor gasket
- Tuning Note: Slight jetting increase recommended
Fitment
- Part Number: HSI-01-0023
- Compatibility: Yamaha SuperJet 701cc with 38mm SBN
Get tall-stack performance in a short-stack package. Order now.
Part Number: HSI-01-0023
