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Description
STI PERFORMANCE MUFFLER (Low back pressure) For SUBARU BRZ (ZC) ST44300AS020Brand STI Product PERFORMANCE MUFFLER (Low back pressure) Product Number ST44300AS020 Description This high performance muffler boasts low back pressure and an approximately 13% lower airflow resistance compared to the standard models. This muffler has a 120 mm double walled, slash cut tail pipe with one exhaust to the left and right. It gives the rear of the vehicle a high quality sporty look. It uses a dual structure with a tubular pre silencer and
| Brand | STI |
| Product | PERFORMANCE MUFFLER (Low back pressure) |
| Product Number | ST44300AS020 |
| Description | This high-performance muffler boasts low back pressure and an approximately 13% lower airflow resistance compared to the standard models. This muffler has a 120-mm double-walled, slash cut tail pipe with one exhaust to the left and right. It gives the rear of the vehicle a high-quality sporty look. It uses a dual structure with a tubular pre-silencer and main silencer arranged in parallel front to back. The exhaust is specially tuned to give a pleasant, high-quality sound that perfectly fits the character of the SUBARU BRZ. It is able to be installed in combination with the SUBARU genuine rear under diffuser. |
| Compatible Vehicle | SUBARU BRZ (ZC) |
| Compatible Models |
Model adaptation symbol: A 2012/03 / -2013 / 09 / RA (RWD / 6MT) - RA Racing (RWD / 6MT) - R (RWD / 6MT) - R (RWD / 6AT) - S (RWD / 6MT) - S (RWD / 6AT) - model adaptation symbol: B 2013/09 / -2014 / 06 / RA (RWD / 6MT) - RA Racing (RWD / 6MT) - R (RWD / 6MT) - R (RWD / 6AT) - S (RWD / 6MT) - S (RWD / 6AT) - model adaptation symbol: C 2014/07 / -2015 / 01 / RA (RWD / 6MT) - RA Racing (RWD / 6MT) - R (RWD / 6MT) - R (RWD / 6AT) - S (RWD / 6MT) - S (RWD / 6AT) - model adaptation symbol: D 2015/02 / -2016 / 07 / RA Racing (RWD / 6MT) - R Customize Package (RWD / 6MT ) - R Customize Package (RWD / 6AT) - R (RWD / 6MT) - R (RWD / 6AT) - S (RWD / 6MT) - S (RWD / 6AT) - model adaptation symbol: E 2016/07 / - RA Racing (RWD / 6MT) - R CustomizePackage (RWD / 6MT) ___ R (RWD / 6MT) ___ R (RWD / 6AT) ___ S (RWD / 6MT) ___ S (RWD / 6AT) ___ GT (RWD / 6MT) ___ GT Yellow E (RWD / 6MT) ___ GT (RWD / 6AT) ___ GT Yellow E (RWD / 6AT) ___
|
| Remarks | * It meets safety standards and aftermarket noise regulations * For installation, SUBARU genuine parts are needed as follows:. Gasket (Part number: 44011CA000) x 1 Self lock nut (Part number: 902330011) x 2 Muffler cushion (Part number: 44066AJ010) x 2 * For E type and thereafter model only. The shape of flange is different so it can not be installed on A type to D type. For A to D type, use Part No. ST44300AS010. * The explanation of this product is for Japanese specification. |
| Notes | Images are for illustration purpose only. Actual product may vary. |
Shipping Notes
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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4.1 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 5
Great First Ball for a Puppy!
Style: Ultra, Size: Small (2 Pack), Style: Ultra, Size: Small (2 Pack)
Bought these small balls as the first real ball for my 3-month-old Boston Terrier puppy
He loves it!
Right away he picked one up and carried it around in his mouth all day
Perfect size for a tiny pup, bounces well, and he’s obsessed with fetching it
Holding up great so far during teething
Highly recommend for young puppies -simple, fun, and a big hit! 🐶❤️
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 20, 2026
★★★★★ 5
Best Dog Ball!!
Style: Ultra, Size: Small (2 Pack), Style: Ultra, Size: Small (2 Pack)
Our pug has been obsessed with this ball since we gave it to her — she even slept with it. Somehow it’s still in one piece, which never happens. Easily the best dog ball we’ve bought.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
★★★★★ 5
Difficult to destroy. Bounce really high.
Style: Squeaker, Size: Small (2 Pack)
Bought as a gift for a friend's small dog who dismantles tennis balls. He loves them. I have many years of experience with the product (in a larger size) for my big dog. He always had one either in his mouth or near him. They are pretty much indestructible.
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Reviewed in the United States on May 13, 2026
★★★★★ 4
High quality, wish it was just a little smaller
Style: Squeaker, Size: Small (2 Pack)
Love these. My dogs would play ball all day if I let them. These are very durable and bouncy. Love that it’s washable. They would chew up the small “tennis” balls to pieces so I love that they can’t destroy these. My only criticism is I wish these were just a little smaller (like the size of the small Kong tennis balls). My dogs can carry it in their tiny mouths but they can’t get their mouth around it enough to chew it to get the squeaker to squeak, which is their favorite thing.
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Reviewed in the United States on January 5, 2026
★★★★★ 5
Perfect for little dogs
Style: Ultra, Size: Small (2 Pack)
Perfect size for my 13 pound chihuahua mix. Great bounce and quality feel. Definitely worth it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 26, 2026
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