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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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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SKU: 38832540302

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4.3 ★★★★★
Based on 20 reviews
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Verified Purchase
Rebecca Parker
Pawtucket, US
★★★★★ 5
#1 Tire Repair
Size: 16 oz
This stuff is Fantastic. I have a riding lawn mower and one of the front tires, which is small, had been running low for a couple of years, we took it off. to fill it with the liquiTube and you could see cracks all around the outside of the tire. The liquid tube oozed out of one of the cracks and sealed , immediately. My brother rolled the tire around real good before we put it back on the track lawn mower. It has been 3 days now and today I mowed for 1 1/2 hrs and the tire as full as it was the day we put in the LiquiTube. This stuff is fantastic, it really, really works!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
J
Verified Purchase
Jana
Whiting, US
★★★★★ 4
Awesome
Size: 32 oz
Works as advertised. Just don't scrimp... give it the full recommended amount in each tire
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
K
Verified Purchase
kevin weir
Port Orchard, US
★★★★★ 5
This tire sealant works very well
Size: 16 oz
So far so good. Cheaper and easier that tubing a leaking tire
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
J
Verified Purchase
Jerry D
San Leandro, US
★★★★★ 3
Hard to install as instructed.
Size: 32 oz
Nearly impossible to get it in the tire through the valve. Yes I removed the valve core. Broke the bead on the tire and dumped it in. That worked great! So far no leaks. They should definitely redesign the installation method.
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Reviewed in the United States on April 28, 2026
B
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bsync
Battle Creek, US
★★★★★ 5
Been using it for 15 years! Not sure where the Neg reviews come from?
Size: 16 oz
I've been using Liquitube since around 2010. I use it religiously in my ATVs and lawn tractor tires. Since I've been using this stuff, I've never had a flat before. I've pulled out nails and slivers of steel out of my ATV tires but yet none of them lose air or go flat. I think some of the negative reviews come from improper use of the product or not enough of the product is being used in the tires. I think this come from variance in formula charts that Liquitube has had in the past on their bottles and on their website. The chart on their website wouldn't match the formula that was provided on the bottle. So I think alot of people get mixed up and not knowing the correct amount to add to each tire. Now Liquitube just puts pictures on the side of the bottle with an ounce measurement below each picture to tell people how to use it. But even that can be confusing. For instance, take the picture of the ATV that they show. Below the ATV it says 32oz. Now some people probably think the 32oz is for the entire ATV. Well that isn't the case. They want you to use 32oz Per Tire! Years ago Liquitube even used to say on the bottle to use 32oz per tire on an ATV. Now they just show a picture with an amount below it. Now you'll come to find out that the 32oz they recommend doesn't match up to the formula they tell you to use to calculate how much each tire is supposed to get. So if you use the formula provided, you come to find that it calculates out to use less product per tire than what the bottle tells you to use. So that's very confusing as well. So if you use it long enough, you'll be able to know how much each tire will need from experience. Just make sure there's enough on the inside of the tire to coat the entire inside as well as leaving a bit left over to circulate in the tire so it can be ready for a large puncture if that ever happens. All in all, it's a good product that does what it claims. It lasts for as long as the tire does and it doesn't freeze up in the cold either! 5 stars!
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Reviewed in the United States on February 13, 2026

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