Autometer Cobalt Gauge Vac/Boost 2 1/16in -1 - +2 Bar Mechanical Cobalt 1978-mercury-grand-marquis-base-esi6155390 CE Certified

CE Certified

(*Dyno results are from P/N: 49-33087-B) This cat-back exhaust system utilizes full 3" tubing with 2-1/4" clamp-on reduction tubes to fit OE connections

large 9" oval 360 degree radial flow performance air filter with 5-layers of progressive finer mesh cotton media providing  maximum airflow and performance

20 with flat gasket for proper sealing on carburetors like the standard Holley and those with similar float bowls

Autometer Cobalt Gauge Vac/Boost 2 1/16in -1 - +2 Bar Mechanical Cobalt 1978-mercury-grand-marquis-base-esi6155390 CE CertifiedThe Standard In The Industry, Autometers Mechanical Boost Vac Gauges Have Found Their Way Into More Builds Than Any Other. Using A Patented, High Precision Bourdon Tube Meter Movement, There Isnt Another Gauge On The Market That Can Lay Claim To The Levels Of Accuracy Or Durability You" Ll Find Here. A Simple 1 8" Npt Pressure Connection Requires No Electrical Hookup For Operation. Includes 1 8" Npt Fittings And Nylon Line Kit. Gauge kit includes 1 8"