Description
Gain RPM with HSI 61X Exhaust Stinger Sleeve – precision reducer for stock 61X chambers. Increases backpressure for improved throttle response and over-rev, proven to outperform competitors. Includes stainless clamp.
Proven Performance
- Reduced Outlet: Traps pressure in chamber
- Higher RPM: Beats other sleeves in dyno tests
- Throttle Snap: Instant response
- SS Clamp Included: Secure fit
- Direct Install: No modifications
Applications
- Lites Class: Legal power boost
- Recreational: Wake up stock pipe
- SuperJet/WB1: 61X OEM exhaust
Pair With
Water Kit (HSI-75-0007) – for complete tune.
More revs, more fun. Install HSI sleeve.
Part Number: HSI-75-0008
