- Precision-molded elastomer o-rings for fast lsx & ls1/ls6 intake manifolds
- Eliminates engine vacuum leaks for smooth idle performance
- Resistant to fuel vapors, oil residue, and engine heat
- Maintains long-term flexibility without flattening
- Direct drop-in replacement set for quick installation
Specifically developed for FAST LSX and factory LS1/LS6 intake manifolds, this high-grade elastomer O-ring seal set guarantees an airtight intake track. Replacing worn intake seals eliminates lean-running vacuum leaks, restores idle stability, and ensures consistent throttle response. The high-grade rubber compound remains flexible over time without hardening or cracking under engine bay heat.