SKU: 38832540302

Borla Cat-Back Exhaust System - S-Type (140075)

Sale price$418.05 Regular price$464.50
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Description

Borla Cat-Back Exhaust System - S-Type (140075)Borla S Type Cat Back Exhaust System for 2002 2007 Subaru Impreza WRX 2. 0L 2. 5L Turbo 4 Cyl. Auto. Man. l Trans. AWD 4 Door Wagon 2004 2007 Subaru Impreza WRX STI 2. 5L Turbo 4 Cyl. Auto. Man. Trans. AWD 4 Door Sedan Hatchback. (140075) Upgrading your factory exhaust system to a Borla stainless steel performance exhaust system with a more efficient and less restrictive design can improve sound (adding more enjoyment driving your vehicle) and

Borla S-Type Cat-Back Exhaust System for 2002-2007 Subaru Impreza WRX 2.0L/ 2.5L Turbo 4 Cyl. Auto./ Man.l Trans. AWD 4 Door/ Wagon/ 2004-2007 Subaru Impreza WRX STI 2.5L Turbo 4 Cyl. Auto./ Man. Trans. AWD 4 Door Sedan/ Hatchback. (140075)

Upgrading your factory exhaust system to a Borla stainless steel performance exhaust system with a more efficient and less restrictive design can improve sound (adding more enjoyment driving your vehicle) and increase engine horsepower and torque throughout the RPM range (allowing quicker acceleration to pass a vehicle or get to highway speeds quicker). Borla offers Axle Back exhaust systems, Cat back exhaust systems, and for select Competition-Use-Only vehicles, we offer long tube headers to replace your exhaust manifold for the best performance and sound.

The Borla "Cat Back™" name implies the exhaust system is located behind the factory catalytic converter where there factory emissions remain untouched and vehicle stays emissions compliant. This remains distinct from the Axle Back exhaust system that is located behind the rear axle. Alex Borla coined the phrase 'Cat Back' and introduced the Cat Back performance exhaust in 1978, a bolt-on replacement performance exhaust system requiring no welding, thus being secured using the factory hanger locations.

Borla Cat Back exhaust systems use engine-specific (not universal) mufflers that are designed, tested, and optimized specifically for a particular year/make/model vehicle. Borla Cat Back systems increase the overall sound level & performance. Vehicles that don't have a factory service-point require "cutting" the factory exhaust system before installing a Borla Cat Back performance exhaust system. Borla includes instructions where to make this cut and includes the hardware to complete the installation. Many of today's modern vehicles have a factory service-point in the exhaust system (flange or slip-fit) located in the exhaust tubing behind the catalytic converter. A Borla Cat Back performance exhaust system replaces the factory exhaust system (behind this service-point) following the same exhaust path and secured using the original vehicle hangars and rubber isolators. Borla pioneered the automotive exhaust aftermarket in exhausts constructed in aircraft grade 304 stainless steel tubing, a material with higher content of carbon & nickel that won't rust or corrode.

Features:

  • Horsepower and Torque Increased by 7 – 10%
  • Increased exhaust flow for better performance
  • Better fuel economy at cruising speeds
  • The most aggressive sound of any Borla system
  • Custom designed for each application
  • Patented straight-through, multi-core muffler design reduces backpressure while absorbing sound waves
  • Mandrel-bent stainless steel tubes with diameters optimized for reduced restriction while maintaining exhaust gas speed
  • Made from the finest austenitic stainless steel for long-lasting durability
  • All welded construction
  • Includes everything required for installation, including detailed instructions
  • Backed by the exclusive Borla Million-Mile warranty
  • Proudly made in the USA more

Part# 140075 is the more Aggressive "S-Type" Cat-Back'. The mellow "Touring" Cat-Back exhaust is part# 140053 BORLA Performance once again leads the industry with a high flow performance exhaust for the hot Subaru WRX and WRX STI. This Cat-Back system, BORLA #140075, is custom designed by BORLA engineers for the 2.5L turbocharged 4-cylinder engine with automatic and manual transmissions. Winning on racetracks around the world has given BORLA a leg up on the competition with trickle down technology from the world 's fastest cars. The unique design is a direct bolt-on fit that meets all emission requirements. The system has shown significant flow and performance improvements by virtue of BORLA XR-1 patented technology utilizing 3" tubing that exits with a super looking BORLA logo embossed 4"angle cut, rolled edge, single round polished tip. More flow means more power, and if you tune this turbocharged super import, that flow will simply allow even more power. When you get a close look inside this muffler, you can see the patented BORLA XR-1 multi cores - that look says total performance. Increased fuel mileage is an added benefit. And, one more thing, it has a great sound, too, but then you've come to expect that from BORLA. Add a BORLA header (#17217) for even more performance. BORLA Performance Industries, the original pioneers of high quality T-304 austenitic stainless steel (superior to T-409 or aluminized steel) free flow exhaust utilizes its 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 the famous BORLA&reg' written million-mile warranty.

Shipping Notes
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  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 38832540302

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4.7 ★★★★★
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Duane
Belleville, US
★★★★★ 5
Quality all copper wire
Size: 16 AWG-100 ft
True16 Gauge pure copper wire Quality wire with a high strand count Nice insulation not overly stiff or too soft Expect I will be buying more as it is a good value for the $
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 1, 2025
D
Verified Purchase
DL NB
San Leandro, US
★★★★★ 5
Wire works as specified, no issues and good price
Size: 16 AWG-100 ft
Wire is as specified. Works great, no issues. Good price when I purchased. The wire insulation is not overly stiff and can handle manipulation well.
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Reviewed in the United States on August 5, 2025
T
Verified Purchase
Treefrog
Waukegan, US
★★★★★ 4
Not the sorry copper coated aluminum.
Size: 16 AWG-100 ft
The wire is 16 gauge plenty big for my system. Heck, the wires supplied with my stereo, copomonet speakers, and amplifiers are about 20 or 24 gauge. I'm quite sure the wire will be more than suffeceint. I, m installing a mono sub amplifier a four-way amplifier to the sub amp outputs and the front of lines of the stereo. I'm gonna be pushing 20 speakers all except the sub woofer only pushing 100 watts a channel and the sub will push 150 watts. That makes 21 altogether. Not much just good clean sound. I've been working on the project going on 5 years now. Been bargain hunting, besides the work I've only got about $650 in the project. Can't wait to get it completed here around the end of July. Hopefully, it will sound great didn't want to pay anyone. Seen too many "professional" jobs that were subpar. I've seen some nightmares. Figured if l did the job then who could I blame at least I can only blame myself and didn't pay $1,000 for it. 😁🤔
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Reviewed in the United States on June 30, 2021
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Dick Incorp
Bozeman, US
★★★★★ 5
It's a good one, buy it.
Size: 16 AWG-100 ft
Actual 5 stars! OFC, copper stranded wire, takes solder nicely when tinned, stiff and pliable enough to stay bent. covering melts INTO wire as expected. I was hoping for a good deal and got one.
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Reviewed in the United States on August 15, 2025
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Eric D
Omaha, US
★★★★★ 5
good product
Size: 16 AWG-100 ft
good product
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Reviewed in the United States on December 21, 2025

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