Cometic Multi-Layer Steel Head Gasket, 3.860" Bore, .066" Thick CMC5691-066 Heat Protection F6 requires included AF359-04 (M12

F6 requires included AF359-04 (M12 x 1

Aeroflow's universal catalytic converter is a metallic substrate material encased in a full brushed 304 stainless steel round body Designed for performance exhaust systems theses Hi-flow 50 cells per inch honey comb converters are very low restriction so they don't loose horsepower

Internal Wastegate

- V-Band Weld on Ferrule Outside Diameter - 146mm (5-3/4")

Cometic Multi-Layer Steel Head Gasket, 3.860" Bore, .066" Thick CMC5691-066 Heat Protection F6 requires included AF359-04 (M12Multi Layer Steel HeadGasket, 3. 860" Bore, . 066" ThickSuits Holden V6 3. 8L Stage I & II Brand: COMETIC Part Number: CMC5691 066 Description: Cometic MLS (Multi Layer Steel) Head Gaskets provide maximum sealing performance for today's high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand theshearing force created by the two materials.