Milltek Cat-back Exhaust for Audi A3 2.0 TDI 170bhp 2WD Sportback DPF (2008-2012) – Sharper Sound, Reduced Back Pressure
This is Milltek's cat-back system for the Seat Leon FR 2.0 TDi 170PS DPF. It replaces everything from the factory catalytic converter rearward with wider-bore pipework, a re-profiled mid-pipe and silencers tuned specifically for this platform, cutting back pressure and sharpening the exhaust note. The factory catalytic converter stays in place, so the car's emissions hardware is left as standard.
It's aimed at owners who want a noticeably different sound and a genuine, if modest, flow improvement without touching anything upstream of the cat: a straightforward bolt-on that doesn't need a remap or any other supporting mods to enjoy.
Specifications
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System Type: Cat-back
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Pipe Diameter: 69.85mm (2.75")
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EC Approved: No
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Race System: No
Key Features
- Made from T304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration
- Mandrel-bent pipework keeps a constant diameter through every bend for unrestricted flow
- 69.85mm (2.75") pipework
- Replaces the standard exhaust from the catalytic converter back, so the factory cat is retained
- Designed, developed and manufactured in the UK by Milltek Sport
Fitment
- Audi A3 2.0 TDI 170bhp 2WD Sportback DPF (2008-2012)
- Seat Leon FR 2.0 TDi 170PS DPF (2005-2013)
Not every version fits every car in this list. Check the fitment shown for the option you select.
Not suitable for: the Audi A3 2.0 TDI 184PS MQB 2WD (3 Door & Sportback Models), which needs the Milltek Cat-back Exhaust Audi A3 2.0 TDI 184PS MQB 2WD 3dr & Sportback 13-20; the Audi A3 2.0 TFSI quattro Sedan 8V (US-only), which needs the Milltek Cat-back Exhaust Audi A3 2.0 TFSI Quattro Sedan 8V US-only 14-20.
Installation
The fitting time varies by version; see the specification table for the option you choose. Some versions: Cupra K1-style. Requires Cupra K1 rear bumper. We recommend professional fitting on a ramp. Once fitted, check the tailpipe alignment and re-check all clamps after the first few hundred miles.
Will it fit the Seat Leon FR 2.0 TDi 170PS DPF?
Yes. Milltek lists this part for the Seat Leon FR 2.0 TDi 170PS DPF as well as the other models in the fitment list above.
Does it fit the Audi A3 2.0 TDI 184PS MQB 2WD (3 Door & Sportback Models)?
No. For that car, choose the Milltek Cat-back Exhaust Audi A3 2.0 TDI 184PS MQB 2WD 3dr & Sportback 13-20.
Is it road legal?
Milltek does not list EC approval for this part. Any exhaust used on the road must still meet noise and emissions rules, so check the requirements where you live.
Do I need a remap?
No. It fits behind the factory catalytic converter, so no software changes are needed.
Does it keep the factory catalytic converter?
Yes. It fits behind the factory catalytic converter, which stays in place.
How long does it take to fit?
It depends on the version. Milltek's fitting time for each option is shown in its specification table.
What is it made from?
T304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration better than lower grades.
Is there a warranty?
Yes. Milltek products are covered against defects in materials and workmanship. Contact us with your order number if you have a problem.
