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Audi A4 Thermal Research Exhaust Systems 

Audi A4 Thermal Research exhaust systems are proudly made in the USA with T304 stainless steel material! Every Audi A4 Thermal Research exhaust system installs using the factory hangers, making for an effortless installation. And let's not forget, there's also a lifetime warranty!


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Fits: 02-03 Audi A4 - 1.8T Quattro Manual

PART# A1101-B1101-C1101LR

Retail: $1,619.92
$1,376.93


Free Shipping!


Fits: 02-03 Audi A4 - 1.8T Quattro Automatic

PART# B1102-C1101LR

Retail: $1,457.92
$1,239.23


Free Shipping!


Fits: 02-04 Audi A4 - 3.0 Quattro

PART# B1103-C1104LR

Retail: $1,619.92
$1,376.93


Free Shipping!


Previous1Next

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Not able to find what you are looking for?

J2 FOR 03-08 AUDI A4 PL46 B7 CATBACK EXHAUST HI POWER DUAL ROLLED MUFFLER 4"TIP

Exhaust System For 02-05 Audi A4 Quattro 1.8T Automatic Transmission

J2 FOR 03-08 AUDI A4 Typ 8E/8H B7 CATBACK EXHAUST HI POWER DUAL MUFFLER 4" TIP

J2 FOR 03-08 AUDI A4 Typ 8E/8H PL46 B7 CATBACK EXHAUST DUAL MUFFLER 4"ROLLED TIP

J2 DUAL 4"TIP HI-POWER RACING CATBACK EXHAUST MUFFLER FOR 03-08 AUDI A4 PL46 B7

aFe MACH ForceXP T304 Axle-Back Exhaust For 2017-2019 Audi A4 A4 Quattro B9 2.0T





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  • Thermal Research(3)
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Audi A4 Thermal Research Exhaust Systems 

Audi A4 Thermal Research exhaust systems are proudly made in the USA with T304 stainless steel material! Every Audi A4 Thermal Research exhaust system installs using the factory hangers, making for an effortless installation. And let's not forget, there's also a lifetime warranty!


Choose Your Vehicle:

Shop Audi A4 Thermal Research Exhaust Systems by Year

1 - 3 of 3
Sort by:




Fits: 02-03 Audi A4 - 1.8T Quattro Manual

PART# A1101-B1101-C1101LR

Retail: $1,619.92
$1,376.93


Free Shipping!


Fits: 02-03 Audi A4 - 1.8T Quattro Automatic

PART# B1102-C1101LR

Retail: $1,457.92
$1,239.23


Free Shipping!


Fits: 02-04 Audi A4 - 3.0 Quattro

PART# B1103-C1104LR

Retail: $1,619.92
$1,376.93


Free Shipping!


Previous1Next

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

Not able to find what you are looking for?

J2 FOR 03-08 AUDI A4 PL46 B7 CATBACK EXHAUST HI POWER DUAL ROLLED MUFFLER 4"TIP

Exhaust System For 02-05 Audi A4 Quattro 1.8T Automatic Transmission

J2 FOR 03-08 AUDI A4 Typ 8E/8H B7 CATBACK EXHAUST HI POWER DUAL MUFFLER 4" TIP

J2 FOR 03-08 AUDI A4 Typ 8E/8H PL46 B7 CATBACK EXHAUST DUAL MUFFLER 4"ROLLED TIP

J2 DUAL 4"TIP HI-POWER RACING CATBACK EXHAUST MUFFLER FOR 03-08 AUDI A4 PL46 B7

aFe MACH ForceXP T304 Axle-Back Exhaust For 2017-2019 Audi A4 A4 Quattro B9 2.0T