A working diesel is judged on durability rather than revs. This article covers what the ZD30 asks of a top-mount intercooler, placement and airflow, core and end tank design, dust and vibration, piping and boot fitment.
One kit can cover several EJ25 models, but fitment still differs. This piece explains top-mount against front-mount placement, heat soak on a boxer, core and end tank choice, piping and couplers, and supporting parts.
A cat-back on a boxer turbo is both a flow part and a sound part. This article covers the VB layout, what a cat-back changes, titanium for a rally-derived car, flange and hanger fitment and how to keep a daily driver civil.
A small turbo engine works hard, and heat is the cost. This piece explains what an intercooler does, bar-and-plate against tube-and-fin cores, aluminium end tanks, piping and couplers, heat soak and pressure drop.
The FL5 has to work in traffic and on track. This article covers what a charge pipe does under boost, titanium against the factory pipe, cold air intake routing, heat soak, and the details to confirm before ordering.
An R35 exhaust has to handle real heat and real flow. This piece explains stainless downpipes on a twin-turbo V6, why resonated systems suit a street car, how turbo response relates to the pipe behind it and what to confirm first.
The downpipe is the first restriction after the turbo. This article covers why it matters on the VR30DDTT, high-flow catalytic converter choices, materials for turbo heat, sensor placement and what to confirm before ordering.
A twin-turbo V6 changes what an exhaust has to do. This piece explains dual-valve control, body-style fitment across Q50 and Q60, titanium against stainless, pipe velocity and how to keep a valved system civil in daily use.
