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Catalytic Converter for Audi A3, Audi TT and 3 more models – BM91102
BM91102 — Petrol Cat - Image 2

BM91102 Petrol Cat for Audi A3, Audi TT and 3 more models

£138.33 ex VAT (£165.99 inc VAT)

In stock — order by 4pm for next working day delivery, free to most UK addresses.

… Ordered afternoon one day and delivered perfectly the next. Fitted perfectly. Excellent service.Everything perfect. Cat was advertised at a decent price, website works very well, Ordered afternoon one day and delivered perfectly the next. Fitted perfectly. Excellent service.

George H., CatHive customer · October 2026

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Fitment guarantee: if a part we list for your vehicle doesn’t fit it, we collect it at our cost and send the right part or refund you in full.

14 days to change your mind: return the part unused, in its packaging.

PLEXPAD LTD trading as CatHive · Company number 14156842 · Registered office 124 City Road, London EC1V 2NX · 0207 870 3694

Getting it fitted

Any garage or exhaust centre can fit this part. Its fitting kit is included.

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Garages: open a Trade Account for trade prices.

Fits 7 vehicles (8 variants) — see the list or check yours before you buy.

Fitting kit included — no hidden extras (FK91102C)

2 years warranty

Seen this part cheaper? Our Price Promise beats it by half the difference.

SKU: BM91102 Category: Manufactured by BM Catalysts

Fits these vehicles (7 vehicles, 8 variants)

  • Audi
  • A3 1.8 Petrol 20v Turbo Quattro (AGU; AQA; ARX eng), 8/1998 to 2/2001, 2 Engine code ARX
  • A3 1.8 Petrol 20v Turbo Quattro (AJQ; ARY eng), 10/1998 to 2/2001, Euro 2 Engine code ARY
  • TT 1.8 Petrol 20v Turbo Quattro (180bhp AJQ ARY engs), 10/1998 to 2/2001, Euro 2 Engine code 180bhp AJQ ARY
  • SEAT
  • Leon 1.8 Petrol 20v Turbo Quattro (AJQ; ARY eng), 11/1999 to 2/2001, Euro 2 Engine code ARY
  • Volkswagen
  • Bora 1.8 Petrol 20v 4motion (AGN engine), 2/1999 to 2/2001, Euro 2 Engine code AGN
  • Bora 2.3 Petrol 20v V5 4motion (AGZ engine), 5/1999 to 10/2000, Euro 2 Engine code AGZ
  • Golf 1.8 Petrol Mk.4 20v 4motion (AGN engine), 12/1998 to 10/2000, Euro 2 Engine code AGN
  • Golf 2.3 Petrol 20v V5 4motion (AGZ engine), 12/1998 to 10/2000, Euro 2 Engine code AGZ

Engine management light with code P0420? What to check before replacing the catalytic converter

Cross references

BM91102 replaces these part numbers. Search any of them in the box at the top of the page to land here again.

OE (manufacturer) part numbers
1J0131089FX1J0131701EH1J1131701DX
Walker
20807

Will this part fit my vehicle?

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Additional information

Weight 4.5 kg
Dimensions 802 mm