Designed to fit almost all exhaust tips and intake boots. Made for opening as small as 1" to 4.2"
Works with ALL Smoke/Vacuum Leak Detection machines (Red Line, OTC, AutoLine Pro, and others).
Specially Tapered Cap Plugs ensure a snug seal on all openings allowing you to perform an efficient leak test.
Tested and Proven in our lab to generate the purest of smoke for automotive usages.