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Borla BMW Catback Exhaust Systems

Catback Exhaust systems are designed to completely replace everything from your cats all the way back to your exhaust tips. Traditionally, if you are planning on upgrading your entire exhaust system, you will also need headers and downpipes.
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E46 325/330i/Ci Borla Sport Exhaust - Cat-Back Resonators, Muffler
E46 325/330i/Ci Borla Sport Exhaust - Cat-Back Resonators, Muffler ...
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Borla - Corporate Logo
T#:3517
Part#: 140084
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$ 2,118.99 USD
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Section: center section with resonator, rear muffler (header/cat-back)
Installation: bolt-on to header, clamps elsewhere
Tip Style: dual round 76mm Borla angle cut
Power Gain: +5hp

Borla completely re-engineers the exhaust on the E46 325/330 with a tuned all-stainless cat-back system. The E46 Borla bolts straight to the factory manifold and uses all of the factory hangers for an easy and seamless install. Your factory exhaust can come off as one complete piece and bolt this in its place! This is a full stainless system - T304 inside and out for maximum corrosion resistance. The Borla flows better than the stock system too for increased performance, even over the stock ZHP system. But we love the sound of this system the most - deep and with plenty of rumble to set it apart from the stock sound. It's a tuned system, with front resonator and rear muffler, to be louder than stock but not excessive. It's also a lot lighter than the stock system at only 33lbs from nose to tailpipe.

Read what Borla owners have to say:
"The difference over stock is noticeable the instant you turn the key. It begins with a deep muted rumble at engine start. Between 1200-2000rpm, you are treated to a nice throaty (and somewhat loud) growl. Between 2500-3500rpm, the deep growl reveals a slightly deeper, more melodic mechanical rev-up. Once past 4500rpm, the car begins to sound surprisingly stock, all the way up to redline. Lifting off the gas reveals a slightly more pronounced "burble" that settles into a low rumble as revs drop back to idle. At steady cruising speeds, the exhaust does not drone. Planting your right foot brings back that wonderful low growl."
"...the Borla is a very well built unit. Very civilized exhaust note... more agressive, yet not obnoxiously loud."
"I can easily say the Borla exhaust is much better than the X&X exhaust. My brother has the Borla on his 330i ZHP, and I had the X&X on my 330i. The X&X exhaust didn't have the quality of engineering compared to the Borla. The X&X was louder, and had horrible resonation - unacceptable for street use. The Borla is bolt-on, excellent quality, and hangs perfectly straight. The sound is a bit louder than stock, yet never "rice" or obnoxious."

Every Borla is made with 304 stainless steel for the internals and muffler body. Unlike other systems that can use coated aluminum, mild steel, or 409 stainless, the Borla uses true 304 stainless on the inside as well as the outside. This prevents the muffler from rusting and deteriorating from the inside out. Borla guarantees every muffler with a 1,000,000 mile warranty. Turner Motorsport has been the leading Borla dealer for BMW exhausts since we sold our first system in 1996, including using Borla Exhausts on all of every Turner BMW racecar.

This item fits the following BMWs:
2001-2005 E46 BMW 325i 325ci 330i 330ci
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MINI R50 Cooper Borla Sport Exhaust - Cat-Back Resonator, Muffler
MINI R50 Cooper Borla Sport Exhaust - Cat-Back Resonator, Muffler ...
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Borla - Corporate Logo
T#:56
Part#: 140030
In Stock
$ 994.99 USD
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$ 994.99 USD
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Section: cat-back resonator, rear muffler
Installation: bolt-on to stock cat section, slip-on elsewhere
Tip Style: single round 102mm Borla angle cut
Power Gain: +8hp

The Borla exhaust for the MINI (non S) is a true cat-back performance system. This exhaust will give the Cooper a deeper and throatier voice that sets it apart from the stock Cooper and even the Cooper S version. This exhaust bolts to the stock catalytic converter and includes a resonator and rear muffler to get a more aggressive sound without being overly loud and intrusive. And we measured an 8 horsepower gain at the wheels on our dyno! This exhaust will re-awaken your MINI and put a bit more pep in your driving.

Every Borla is made with 304 stainless steel for the internals and muffler body. Unlike other systems that can use coated aluminum, mild steel, or 409 stainless, the Borla uses true 304 stainless on the inside as well as the outside. This prevents the muffler from rusting and deteriorating from the inside out. Borla guarantees every muffler with a 1,000,000 mile warranty. Turner Motorsport has been the leading Borla dealer for BMW exhausts since we sold our first system in 1996, including using Borla Exhausts on every Turner BMW racecar.

This Borla Exhaust fits the following MINI models:
2002-2007 R50 MINI MINI Cooper
2005-2008 R52 MINI MINI Cooper Convertible
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E90 E92 335i/335xi Borla S-Type Aggressive Sport Exhaust - Cat-Back Rear Section, Mufflers
E90 E92 335i/335xi Borla S-Type Aggressive Sport Exhaust - Cat-Back R...
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Borla - Corporate Logo
T#:4176
Part#: 140276
Ships in 1 Business Day
$ 1,419.99 USD
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$ 1,419.99 USD
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Section: cat-back x-pipe, rear mufflers
Installation: slip-on
Tip Style: dual round 80mm Borla angle cut
Power Gain: +7hp

The Borla 'Aggressive' system for the E90/E92 335i is a cat-back system comprised of no resonators, x-pipe section, and dual rear mufflers. This system was Borla's response to a demand for greater volume for the 335's twin-turbo N54 motor. The turbos make the car quieter so having a performance exhaust will allow you to finally hear the engine. Borla has tuned this exhaust to give more of a throaty burble, especially at low RPM while maintaining acceptable sound levels for daily street use. This Borla system is perfect if you want to hear the exhaust but not annoy the people in the car next to you. And this is a true cat-back system so no catalytic converters or emissions equipment is affecting by installing this. And with a free-flowing design this will allow a modest bump in power output. The Borla system is also a lot lighter than the factory system; less weight = more performance!

Every Borla is made with 304 stainless steel for the internals and muffler body. Unlike other systems that can use coated aluminum, mild steel, or 409 stainless, the Borla uses true 304 stainless on the inside as well as the outside. This prevents the muffler from rusting and deteriorating from the inside out. Borla guarantees every muffler with a 1,000,000 mile warranty. Turner Motorsport has been the leading Borla dealer for BMW exhausts since we sold our first system in 1996, including using Borla Exhausts on every Turner BMW racecar.

This item fits the following BMWs:
2006-2010 E90 BMW 335i 335xi 335i xDrive - Sedan
2007-2010 E92 BMW 335i 335is 335xi 335i xDrive - Coupe
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Borla "ATAK" Sport Exhaust System - F30 335i F32 435i
Borla "ATAK" Sport Exhaust System - F30 335i F32 435i
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Borla - Corporate Logo
T#:180925
Part#: 140580
In Stock at Vendor
$ 1,675.99 USD
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$ 1,675.99 USD
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Section: complete exhaust from the downpipe-back, non resonator, Borla performance muffler
Installation: clamp-on
Tip Style: round 88mm Borla angle cut


This stainless steel rear exhaust section replaces the heavy (and restrictive) stock exhaust system on the F30 335i F32 435i. Shed excess weight and restriction, and get a better sound! The ATAK system -- Acoustically Tuned Applied Kinetics -- allows a very high volume without drone and distortion. This is beyond the usual 'muscle car' sound - this is full blown automotive thunder! Borla manages the sound waves inside the exhaust to produce an exhaust note that maintains its tone as revs rise. With ATAK, the sound output is tuned like a graphic equalizer to shape and focus sound waves for optimum high-volume output. This exclusive technology produces the highest available dB (decibel) levels in the Borla street-legal lineup, and is designed for high-performance purists who prefer exhaust notes over their stereos. And if you have tuned your 335i to make more boost than stock, you will greatly appreciate the Borla design without the restrictive resonator and muffler.

Every Borla is made with 304 stainless steel for the internals and muffler body. Unlike other systems that can use coated aluminum, mild steel, or 409 stainless, the Borla uses true 304 stainless on the inside as well as the outside. This prevents the muffler from rusting and deteriorating from the inside out. Borla guarantees every muffler with a 1,000,000 mile warranty. Turner Motorsport has been the leading Borla dealer for BMW exhausts since we sold our first system in 1996, including using Borla Exhausts on every Turner BMW racecar.

This Borla Exhaust fits the following BMWs:
2012+ F30 BMW 335i - Sedan
2013+ F32 BMW 435i - Coupe
2013+ F33 BMW 435i Convertible
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MINI R53 Cooper S 04-06 Borla S-Type Cat Back Aggressive Exhaust
MINI R53 Cooper S 04-06 Borla S-Type Cat Back Aggressive Exhaust ...
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Borla - Corporate Logo
T#:3481
Part#: 140119
In Stock at Vendor
$ 1,459.99 USD
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$ 1,459.99 USD
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As Used on our Project Mini Cooper S
Section: cat-back resonator, rear mufflers
Installation: bolt-on with flange
Tip Style: dual round 76mm Borla angle cut
Power Gain: +7hp

The Borla Race exhaust is uses smaller mufflers to create a very aggressive, loud, and fun sound. The Race is intended for people who want their MINI to bark and not be inconspicuous. Where the Borla Street exhaust is great for people who want to hear the engine a tiny bit more, the Race is an exhaust that you will hear all the time. It pops and burbles with every lift off the gas and creates a throaty rumble as you rev through the RPM band. It's a very un-MINI like sound that actually works well with the MINI's motorsport and sporting heritage. It installs on to the factory cat section with all of the factory gaskets and hangers.

Every Borla is made with 304 stainless steel for the internals and muffler body. Unlike other systems that can use coated aluminum, mild steel, or 409 stainless, the Borla uses true 304 stainless on the inside as well as the outside. This prevents the muffler from rusting and deteriorating from the inside out. Borla guarantees every muffler with a 1,000,000 mile warranty. Turner Motorsport has been the leading Borla dealer for BMW exhausts since we sold our first system in 1996, including using Borla Exhausts on every Turner BMW racecar.


This item fits the following MINIs:
2005-2008 R52 MINI MINI Cooper S Convertible.
2004-2006 R53 MINI MINI Cooper S
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F30 328i Borla Sport Exhaust System
F30 328i Borla Sport Exhaust System
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Borla - Corporate Logo
T#:179780
Part#: 140509
Ships in 10 Business Days
$ 1,483.99 USD
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$ 1,483.99 USD
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Section: complete exhaust from the downpipe-back, non resonator, Borla performance muffler
Installation: clamp-on
Tip Style: dual round 80mm Borla angle cut
Power Gain: +6hp



This stainless steel rear exhaust section replaces the heavy (and restrictive) stock exhaust system on the F30 328i. Shed excess weight and restriction, and get a better sound! You will love the rich, deep sound this tuned system gives your 328i. There's a throaty and purposeful growl at low RPM and at cruise that makes you forget there's a four-cylinder under the hood. And if you have tuned your 328i to make more boost than stock, you will greatly appreciate the Borla design without the restrictive resonator and muffler.

Every Borla is made with 304 stainless steel for the internals and muffler body. Unlike other systems that can use coated aluminum, mild steel, or 409 stainless, the Borla uses true 304 stainless on the inside as well as the outside. This prevents the muffler from rusting and deteriorating from the inside out. Borla guarantees every muffler with a 1,000,000 mile warranty. Turner Motorsport has been the leading Borla dealer for BMW exhausts since we sold our first system in 1996, including using Borla Exhausts on every Turner BMW racecar.

This Borla Exhaust fits the following BMWs:
2012+ F30 BMW 328i - Sedan
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E90 328i 328xi Borla Sport Exhaust - Cat-Back Rear Section, Mufflers
E90 328i 328xi Borla Sport Exhaust - Cat-Back Rear Section, Mufflers ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Borla - Corporate Logo
T#:183998
Part#: 140505
In Stock at Vendor
$ 1,393.99

This product was last offered at the strikethrough price on
04-09-2026

$ 1,291.99 USD
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$ 1,291.99 USD
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Section: cat-back rear mufflers
Installation: slip-on
Tip Style: dual round 80mm Borla angle cut


The Borla Touring system for the E90 328i is a cat-back system comprised of a resonated center pipe and rear muffles. This system was Borla's response to a demand for greater volume for the 328i's N52 motor. Borla has tuned this exhaust to give more of a throaty burble, especially at low RPM while maintaining acceptable sound levels for daily street use. This Borla system is perfect if you want to hear the exhaust but not annoy the people in the car next to you. And this is a true cat-back system so no catalytic converters or emissions equipment is affecting by installing this. And with a free-flowing design this will allow a modest bump in power output. The Borla system is also a lot lighter than the factory system; less weight = more performance!

Every Borla is made with 304 stainless steel for the internals and muffler body. Unlike other systems that can use coated aluminum, mild steel, or 409 stainless, the Borla uses true 304 stainless on the inside as well as the outside. This prevents the muffler from rusting and deteriorating from the inside out. Borla guarantees every muffler with a 1,000,000 mile warranty. Turner Motorsport has been the leading Borla dealer for BMW exhausts since we sold our first system in 1996, including using Borla Exhausts on every Turner BMW racecar.

This item fits the following BMWs:
2006-2012 E90 BMW 328i 328xi 328i xDrive - Sedan
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MINI R53 Cooper S 04-06 Borla Touring Exhaust - Cat-Back Mufflers
MINI R53 Cooper S 04-06 Borla Touring Exhaust - Cat-Back Mufflers ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Borla - Corporate Logo
T#:3482
Part#: 140120
In Stock at Vendor
$ 1,597.99 USD
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$ 1,597.99 USD
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As Used on our Project Mini Cooper S
Section: cat-back rear mufflers
Installation: bolt-on with flange
Tip Style: dual round 76mm Borla angle cut
Power Gain: +7hp

The Borla Touring street exhaust for the R53 Cooper S is a great mild bump in volume output and sound. Borla makes a Street and Race version of this exhaust with the Street being a noticeable but moderate sound easily tolerated for daily driver use. The Street (Touring) exhaust is perfect for someone who wants to hear a bit more of the engine without waking up the neighborhood or annoying the car next to you in traffic. It suits the character of the Cooper S very well. Borla builds this exhaust as a full cat-back system with dual rear mufflers. It's also about 10lbs lighter than the stock original system.

Every Borla is made with 304 stainless steel for the internals and muffler body. Unlike other systems that can use coated aluminum, mild steel, or 409 stainless, the Borla uses true 304 stainless on the inside as well as the outside. This prevents the muffler from rusting and deteriorating from the inside out. Borla guarantees every muffler with a 1,000,000 mile warranty. Turner Motorsport has been the leading Borla dealer for BMW exhausts since we sold our first system in 1996, including using Borla Exhausts on every Turner BMW racecar.

This item fits the following MINIs:
2005-2008 R52 MINI MINI Cooper S Convertible.
2004-2006 R53 MINI MINI Cooper S
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MINI R56 Stainless Steel Cat-Back Exhaust - S Type
MINI R56 Stainless Steel Cat-Back Exhaust - S Type
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Borla - Corporate Logo
T#:342339
Part#: 140517
In Stock at Vendor
$ 1,024.99 USD
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$ 1,024.99 USD
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MINI R56 Stainless Steel Cat-Back Exhaust delivers enhanced performance and an aggressive exhaust note tailored for street use. The Borla Sport system is designed as a simple slip-on upgrade with a tuned resonator and rear muffler package, offering significant improvements in power and sound without being overly loud.

Engineered specifically for turbocharged engines, this system increases flow capacity, resulting in better boost response, a broader powerband, and an impressive gain of +12hp. Additionally, it provides a weight reduction compared to the bulky stock exhaust, contributing to overall vehicle performance.

Constructed from 304 stainless steel, both inside and out, this exhaust system is built to last. Unlike other systems that may use inferior materials, Borla's 304 stainless construction ensures durability and resistance to rust and deterioration. Backed by Borla's 1,000,000-mile warranty, this exhaust system offers long-lasting quality and performance.

  • Power Gain: Increases horsepower by +12hp.
  • Enhanced Sound: Aggressive yet street-friendly exhaust note.
  • Improved Performance: Boosts response and broadens powerband.
  • Durability: Made from 304 stainless steel for longevity and rust resistance.
  • Weight Savings: Lighter than the stock exhaust system.
  • Warranty: Backed by a 1,000,000-mile warranty from Borla.
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Borla Exhaust
Borla Exhaust
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Borla - Corporate Logo
T#:13003688
Part#: 140509
In Stock at Vendor
$ 1,324.99 USD
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$ 1,324.99 USD
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