A catch can separates oil mist from crankcase vapour by slowing the flow and letting droplets settle. Covers where the vapour comes from, clean side versus pressure side, mounting and drainage.
How an air filter and a prefilter differ in position and purpose, how the working environment sets service intervals, and how to pair the two on a working car.
What intake pipe diameter controls, why larger and smaller bores both have limits, and how joints, bends and the rest of the intake chain decide the real result.
When a one-off build needs a custom silicone hose, what to send with the enquiry, how the sample and drawing routes work, and how to check the first part made.
What hose colour actually is, why it does not change strength or heat resistance, how discolouration works as a warning, and how to order a matched set of hoses.
What separates a heavy duty silicone hose from a standard one, how boost, vacuum, vibration and abrasion expose the difference, and where the extra build pays back.
How heat actually limits a silicone hose near an exhaust, when to re-route instead of shielding, and how to protect the joints, clamps and hottest point of a run.
Why holding heat inside the exhaust gas changes how the system flows, what it does to the pipe wall and joints, and how much coverage is worth fitting in practice.