Your original catalytic converter will typically have 400 or 600 Cells per square inch (CPSI)? these original cats are restrictive in their flow? typically allowing an open area of around 55-65%

Milltek Sport Hi-Flow Sports Cat which will be fully integrated into a large bore downpipe? has only 100-200 CPSI depending on application

These cats have an open area of between 75-85%? thus reducing back pressure substantially and increasing flow rates? all very desirable for extracting more performance? especially on Turbo-Charged engines.

• Emission levels are maintained at legal limits by careful selection of the volume of the metallic substrate.
• Lamda probe positions remain unchanged from the original equipment.
• Manufactured from 304 aircraft grade stainless steel.

This Milltek Kit Includes:

• MSVW257: Large-bore downpipe and hi-flow sports catalyst
• MSVW383: Adapter to OE Cat Back System

NOTES:

For fitment to the OE Cat Back system only and requires a Stage 2 ECU remap

There?s no better place in the UK to supply you with your superb Milltek exhaust products than Milltek? we are literally a stone?s throw away from Milltek?s Head Quarters and factory in the centre of Derby.

FITMENT

Audi A3 1.8T 2WD 3 & 5 door 1996-2004

Audi TT 150 / 180 2WD Coupe & Roadster 1998-2006

Seat Leon 1.8T Sport and Cupra 180PS 2000-2005

Skoda Octavia RS 1.8T 180 and 1.8T 150 1998-2006

Volkswagen Bora 1.8T 2WD 2000-2005

Volkswagen Golf Mk4 337 Anniversary 180bhp 2002-2004

Volkswagen Golf Mk4 GTI 1.8T 1998-2004