Frankenstein Screw-In 16 AN Male O-Ring Thread Breather - 12 AN Male Evacuation Fitting - Black / Natural S90-6-10-032-N Shaft is guided by a

Shaft is guided by a sealed ball bearing for long life and high RPM stability

5/16-18 in Gauge Bolt to 12-17 in Wheel Rims

Aluminum holder works with most tire gauges and has wraparound sides to hold gauge in place

Shockproof

oversized injection-molded air box tray

Frankenstein Screw-In 16 AN Male O-Ring Thread Breather - 12 AN Male Evacuation Fitting - Black / Natural S90-6-10-032-N Shaft is guided by aProduct Description: Breather Screw In 16 AN Male O Ring Thread 12 AN Male Evacuation Fitting Aluminum Black Anodized Natural A designer and manufacturer of top quality high performance cylinder heads and intake manifolds for GM's popular LS series engines as well as other performance powerplants, Frankenstein Engine Dynamics specializes in taking a high output engine to the next level. They also offer premium camshafts and valvetrain components