Downpipe pour Audi A4 Typ B5, A6 type 4B, Skoda Superb type 3U, VW Passat type 3B -1.8T/1.8T-20V moteurs — TA Technix

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Downpipe for Audi A4 B5, A6 4B, Skoda Superb 3U, VW Passat 3B - 1.8T/1.8T-20V engines — TA Technix

Ref. 06AU005

149,00 € incl. VAT

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TA Technix

Downpipe for Audi A4 type B5, A6 type 4B, Škoda Superb type 3U, VW Passat type 3B -1.8T/1.8T-20V engines

Specifications

Part number06AU005

Diameter2.5"

Weight2 kg

Years1994 - 2008

EAN code4251016797156

Technical details

2.5"/63.5 mm downpipe (replaces the catalytic converter)
Connection to the original manifold
Dual lambda sensor ports included

What this part changes

The downpipe is the tube that runs down from the turbocharger. This is where back pressure builds up: the turbine has to push exhaust gases through a restricted section and often a catalytic converter. Widening it frees up the turbine, allowing it to build boost earlier and more decisively - it 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 and the power holds higher in the rev range. On a remapped engine, this is the part that allows the ECU to deliver what the tune promises; without remapping, the ECU compensates and much of the potential gain remains untapped.

What to plan for

ECU remapping: essential to make use of the gain and prevent limp mode.
Without a catalytic converter, the car is no longer road-legal and the engine warning light will come on if nothing is done electronically.
Check the lambda sensor port: single or dual depending on the engine, as indicated in the technical details of the product listing.
Removal often requires access from underneath and removal of an engine mount: plan for a lift or axle stands.

Compatible vehicles

Make	Model	Engine	Years
Audi	A4, - Avant, type 8D, B5	—	—
Audi	A4, - Cabriolet, type 8E, 8H,B6+B7	110+120+140 kW, 1.8T	—
Audi	A6, - Avant, type 4B, C5	110+132 kW, 1.8T	—
Škoda	Superb I, type 3U	110 kW 1.8T	—
Volkswagen	Passat, - Variant, type 3B	1.8T with 110 kW	—

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.