Welded Aluminum Back Pressure Canister DOD 1" spacers with integrated O2

1" spacers with integrated O2 sensor threads for EFI

They are made from laser cut 1/8" aluminum

and 1/2" NPT welded fitting on bottom to be plumbed inline with the heater core similar to 99+ Silverados

This kit includes a 3 piece upper mount/shroud kit fabricated from 1/8" 5052 aluminum

75 O-ring seal to -6 AN male fitting

Welded Aluminum Back Pressure Canister DOD 1" spacers with integrated O2Welded aluminum exhaust back pressure buffer canister. Intended to be used to dampen exhaust pulses when measuring exhaust turbine pressure with a pressure transducer. 2" diameter, 2. 5" tall, with 1 8" female NPT ports in either side.