Borla Cat-Back Exhaust System 1999-06 BMW 325i/330i E46

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See fitment guide below for all applications and any special notes. 

50 state legal. California emissions compliant.

Looking for an affordable exhaust system for your BMW E46?

Add horsepower, torque, and a glorious tone, all while reducing weight.

 System features 3.2 inch, polished T-304 stainless steel tips.

 BORLA® Cat-Back™ & Axle-Back exhaust systems feature patented straight-through and multi-core technology to unleash hidden horsepower.

Increased exhaust velocity adds power, driving excitement, fuel economy, and an aggressive exhaust note without drone.

Each system is built from premium T-304-austenitic stainless steel, superior to T-400 series knockoffs (such as 409), to give you the absolute best in performance and durability.

Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer-controlled CNC manufacturing ensures an accurate fit.

BMW E46 performance upgrades at MGC.

Images may differ slightly from the kit for your E46.

Installation instructions

Fitment Guide:

• 2000 BMW 323Ci Base L6.2494cc 

  2000: 2 in.; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;50 State Legal / California Emissions Compliant

• 1999-2000 BMW 323i Base L6.2494cc 

  1999: 2 in.; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;50 State Legal / California Emissions Compliant
  2000: 2 in.; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;50 State Legal / California Emissions Compliant

• 2001-2006 BMW 325Ci Base L6.2494cc 

  2001: 2 in.; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;50 State Legal / California Emissions Compliant;   T-304 Stainless Steel 2 in. Tubing; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;
  2002: 2 in.; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;50 State Legal / California Emissions Compliant;   T-304 Stainless Steel 2 in. Tubing; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;
  2003: 2 in.; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;50 State Legal / California Emissions Compliant;   T-304 Stainless Steel 2 in. Tubing; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;
  2004: 2 in.; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;50 State Legal / California Emissions Compliant;   T-304 Stainless Steel 2 in. Tubing; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;
  2005: 2 in.; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;50 State Legal / California Emissions Compliant 2 in. Tubing; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;
  2006: 2 in.; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;50 State Legal / California Emissions Compliant;   T-304 Stainless Steel

• 2001-2005 BMW 325i Base L6.2494cc 

  2001: 2 in.; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;50 State Legal / California Emissions Compliant 2 in. Tubing; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;
  2002: 2 in.; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;50 State Legal / California Emissions Compliant 2 in. Tubing; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;
  2003: 2 in.; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;50 State Legal / California Emissions Compliant 2 in. Tubing; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;
  2004: 2 in.; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;50 State Legal / California Emissions Compliant;   T-304 Stainless Steel 2 in. Tubing; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;
  2005: 2 in.; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;50 State Legal / California Emissions Compliant 2 in. Tubing; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;

• 2001-2006 BMW 330Ci Base L6.2979cc 

  2001: 2 in.; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;50 State Legal / California Emissions Compliant;   T-304 Stainless Steel 2 in. Tubing; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;
  2002: 2 in.; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;50 State Legal / California Emissions Compliant;   T-304 Stainless Steel 2 in. Tubing; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;
  2003: 2 in.; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;50 State Legal / California Emissions Compliant;   T-304 Stainless Steel 2 in. Tubing; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;
  2004: 2 in.; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;50 State Legal / California Emissions Compliant;   T-304 Stainless Steel 2 in. Tubing; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;
  2005: 2 in.; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;50 State Legal / California Emissions Compliant;   T-304 Stainless Steel 2 in. Tubing; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;
  2006: 2 in.; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;50 State Legal / California Emissions Compliant;   T-304 Stainless Steel

• 2001-2005 BMW 330i Base L6.2979cc 

  2001: 2 in.; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;50 State Legal / California Emissions Compliant 2 in. Tubing; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;
  2002: 2 in.; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;50 State Legal / California Emissions Compliant;   T-304 Stainless Steel 2 in. Tubing; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;
  2003: 2 in.; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;50 State Legal / California Emissions Compliant;   T-304 Stainless Steel 2 in. Tubing; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;
  2004: 2 in.; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;50 State Legal / California Emissions Compliant 2 in. Tubing; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;
  2005: 2 in.; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;50 State Legal / California Emissions Compliant 2 in. Tubing; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;

• 2006 BMW 330i Base L6.2996cc 

  2006: 2 in.; Incl. Connecting Pipes/Mufflers/Hardware/3.19 in Round x 4.75 in. Long Dual Rolled Angle-Cut Tip; Dual Left Rear Exit;50 State Legal / California Emissions Compliant;   T-304 Stainless Steel