Comes with a 60 PSI gauge

Muffler body is 3 1/2" diameter and flare out to 4" diameter

Used with mechanical advanced ignitions

Allows connecting a regular 1/4" I

112 oz (3175 gram) per minute

Cometic Head Gasket .040 thick Pair Offset-delar Comes with a 60 PSIMLS (Multi Layer Steel). Consists of a top and bottom layer of stainless springsteel which is covered by high temperature rubber on both sides. The inner ring is also stainless steel. These 3 layer gaskets are rivited together, outside the gasket surface, for ease of installation. MLS head gaskets eliminate the use of dowel pin o rings. Fits: > 84 99(NU)B. T.(excl. Twin Cam); 88 21 XL1200 (excl. 08 12(NU)XR1200)