Angry Ass | S38B38 Vacuum Supply | Variable Resonance + Secondary Air Injection
A reliable and airtight vacuum supply is a necessity on the S38, to ensure proper operation of the variable resonance intake, the secondary air injection pump, and the fuel pressure regulator. A large majority of the S38 cars we’ve seen need the vacuum system addressed, and unfortunately, a growing number of the vacuum supply components are no longer available from BMW.
As usual, Angry Ass has you covered. We’ve assembled a complete kit to take the guess work out of maintaining this vital system which provides vacuum to the variable resonance actuator and the secondary air injection system, while also providing some durability upgrades.
ATTENTION: If you have deleted your secondary air injection system with our complete Secondary Air Injection delete kit or another method, you don’t need the full kit - fewer points of failure are always a good thing! Please denote if your Secondary Air is “Removed” in the dropdown.
Additional Information
With Secondary Air Injection installed, the S38B38 kit includes:
1X OEM BMW S38B38 vacuum reservoir
1X OEM BMW vacuum reservoir mount (these are almost always broken)
1X OEM BMW check valve
~1.5m OEM BMW braided vacuum line for additional durability over the stock vacuum line
~1m Hard vacuum line, sourced from a US manufacturer, specs that exceed OEM standards (runs to the secondary air injection valve)
~1.5m Abrasion protection, sourced from a US manufacturer, specs that exceed OEM standards (because why not be better)
7X OEM BMW vacuum caps
1X 316 stainless steel “L” fitting (provides a 90 degree for the variable resonance actuator)
1X 316 stainless steel “T” fitting (provides a feed to the secondary air injection and variable resonance solenoids)
With Secondary Air Injection removed, the S38B38 each kit includes:
1X OEM BMW vacuum reservoir
1X OEM BMW vacuum reservoir mount (these are almost always broken)
1X OEM BMW check valve
~1m OEM BMW braided vacuum line for additional durability over the stock vacuum line
~1m Abrasion protection, sourced from a US manufacturer, specs that exceed OEM standards (because why not be better)
7X OEM BMW vacuum caps
1X 316 stainless steel “L” fitting (provides a 90 degree for the variable resonance actuator)
