Borla Exhaust System: AUDI A4 QUATTRO 1.8L AWD MT 4DR 1999-2001 Cat-Back System.
BORLA exhausts are built of aircraft-quality T-304 stainless steel -- stainless inside and out.
Borla's free-flow exhaust utilizes patented award and race winning technology to deliver quality, sound, performance gains and enhanced fuel economy — all with an easy bolt-on installation. All BORLA street products carry an unsurpassed written million-mile warranty. Gains are usually 7-10% increase in HP. | Fits these Vehicles | | Year | Make | Model | Extended | | 2001 | Audi | A4 Quattro
Avant | 1.8L 4cyl VIN# - AWM
MT 5 Spd AWD | | 2001 | Audi | A4 Quattro
Base | 1.8L 4cyl VIN# C AWM
MT 5 Spd AWD | | 2000 | Audi | A4 Quattro
Avant | 1.8L 4cyl VIN# C ATW
MT 5 Spd AWD | | 2000 | Audi | A4 Quattro
Base | 1.8L 4cyl VIN# C ATW
MT 5 Spd AWD | | 1999 | Audi | A4 Quattro
Avant | 1.8L 4cyl VIN# B AEB
MT 5 Spd AWD | | 1999 | Audi | A4 Quattro
Base | 1.8L 4cyl VIN# B AEB
MT 5 Spd AWD | | 1998 | Audi | A4 Quattro
Base | 1.8L 4cyl VIN# B AEB
MT 5 Spd AWD | | 1997 | Audi | A4 Quattro
Base | 1.8L 4cyl VIN# B AEB
MT 5 Spd AWD | Applications: | 
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