Athena Polaris 250 Complete Gasket Kit (Excl Oil Seals) 1990-chevrolet-r1500-suburban-silverado-esi4693126 With credentials on the street

With credentials on the street and the track

Measured Flow: 365 CFM @ 7" H2O

3" Bar and Plate Core Design: The use of the bar and plate core design allows for greater airflow

This system features a merge X-Pipe for increased performance and improved sound

Athena Polaris 250 Complete Gasket Kit (Excl Oil Seals) 1990-chevrolet-r1500-suburban-silverado-esi4693126 With credentials on the streetAthena's gaskets have low moisture absorption, highest mechanical resistance, resistance to oils and gasoline, resistance to high temperatures and pressures, easy removal. This kit includes all the necessary gaskets for a complete engine overhaul (oil seals not included). Perfect interchangeability with the original