Downpipe avec flexible pour BMW 3er Série E46 318d + 320d - code moteur M47 — TA Technix

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Downpipe with flex section for BMW 3 Series E46 318d + 320d - engine code M47 — TA Technix

Ref. 06BM063

249,00 € incl. VAT

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Downpipe with flex pipe for BMW 3 Series E46 318d + 320d - engine code M47

Specifications

Reference06BM063

Weight3.2 kg

Years1998 - 2005

EAN code4251695152505

What this part changes

The downpipe is the pipe that runs down from the turbocharger. This is where back pressure builds up: the turbine has to expel gases through a narrowed section and often a catalytic converter. Widening it frees up the turbine, allowing it to build boost earlier and more decisively - this is the exhaust modification you feel most on a turbocharged engine.

What changes behind the wheel is the response. The turbo takes less time to spool up, and the power continues higher in the rev range. On a remapped engine, this is the part that allows the ECU to deliver what the remap promises; without remapping, the ECU compensates and much of the gain remains untapped.

What to plan for

ECU remapping: essential to take advantage of the gain and avoid entering limp mode.
Without a catalytic converter, the car is no longer road legal and the engine warning light will come on if no electronic changes are made.
Check the sensor port: single or double depending on the engine, as indicated in the technical details of the product page.
Installation often requires access from underneath and removal of an engine mount: plan on using a lift or axle stands.

ECU remapping required. This part modifies the engine's air filling or exhaust flow: without adapting the mapping, you will not achieve the expected gain, and the engine may enter limp mode. Include remapping in your budget.

Compatible vehicles

Make	Model	Engine	Years
BMW	3 Series type E46	318d - 115 + 116 hp - engine code M47 D20 · 320d - 136 + 150 hp - engine code M47 D20	2001–2005 / 1998–2005

Check your vehicle's type and year before ordering: the same body style often comes with several engines, and this part only fits the ones listed here.