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Description
STI SPORT MUFFLER B4 For LEGACY B4 (BL) ST4430021020Brand STI Product SPORT MUFFLER B4 Product Number ST4430021020 Description This product provides dual left and right tail ends, without changing the muffling format of the standard multi stage expanding muffler. It is tuned to emphasize the dry sound of boxer engines. The outer shell of the main muffler is made from stainless steel. The STI logo is stamped on the top of the tail pipes. Compatible Vehicle LEGACY B4 (BL) Compatible Models Model
| Brand | STI |
| Product | SPORT MUFFLER B4 |
| Product Number | ST4430021020 |
| Description | This product provides dual left and right tail ends, without changing the muffling format of the standard multi-stage expanding muffler. It is tuned to emphasize the dry sound of boxer engines. The outer shell of the main muffler is made from stainless steel. The STI logo is stamped on the top of the tail pipes. |
| Compatible Vehicle | LEGACY B4 (BL) |
| Compatible Models |
Model adaptation symbol: A 2003-year May-2004 04 May 2.0i (AWD / 4AT) - 2.0i (AWD / 4AT) - 2.0R (AWD / 5MT) ___ 2.0R (AWD / 4AT) ___ 2.0GT (AWD / 5MT) - 2.0GT (AWD / 5AT) - 2.0GTspec.B (AWD / 5MT) - 2.0GTspec.B (AWD / 5AT) - 3.0R (AWD / 5AT) ___ 3.0R (AWD / 5AT) ___ model adaptation symbol: B 05 2004 May to 2005 2.0i (AWD / 4AT) - 2.0i (AWD / 4AT) - 2.0R (AWD / 5MT) ___ 2.0R (AWD / 5MT) ___ 2.0R (AWD / 4AT ) ___ 2.0R (AWD / 4AT) ___ 2.0GT (AWD / 5MT) - 2.0GT (AWD / 5MT) - 2.0GT (AWD / 5AT) - 2.0GT (AWD / 5AT) - 2.0GTspec.B (AWD / 5MT ) - 2.0GTspec.B (AWD / 5AT) - 3.0R (AWD / 5AT) ___ 3.0R (AWD / 5AT) ___ 3.0Rspec.B (AWD / 6MT) ___ model adaptation symbol: C 2005 Jun-2006 May 2.0i (AWD / 5MT) - 2.0i (AWD / 4AT) - 2.0i (AWD / 4AT) - 2.0R (AWD / 5MT) ___ 2.0R (AWD / 4AT) ___ 2.0R (AWD / 4AT) ___ 2.0R (AWD / 4AT) ___ 2.0GT (AWD / 5MT) - 2.0GT (AWD / 5AT) - 2.0GTspec.B (AWD / 5MT) - 2.0GTspec.B (AWD / 5AT) - BLITZEN 2006 (AWD / 5MT) - BLITZEN 2006 (AWD / 5AT) - 3.0R (AWD / 5AT) ___ 3.0R (AWD / 5AT) ___ 3.0Rspec.B (AWD / 6MT) ___ 3.0Rspec.B (AWD / 5AT) ___ model adaptation symbol: D 04 May 2006 06 May and 2007 2.0i (AWD / 5MT) - 2.0i (AWD / 4AT) - 2.0R (AWD / 5MT) ___ 2.0R (AWD / 4AT) ___ 2.0GT (AWD / 5MT) - 2.0GT (AWD / 5AT) - 2.0GTspec.B (AWD / 6MT) - 2.0GTspec.B (AWD / 5AT) - 3.0R (AWD / 5AT) ___ 3.0Rspec.B (AWD / 6MT) ___ 3.0Rspec.B (AWD / 5AT) ___ model adaptation symbol: E 04 May 2007 05 May to 2008 2.0i (AWD / 5MT) - 2.0i B-SPORT (AWD / 5MT) - 2.0i (AWD / 4AT) - 2.0i B-SPORT (AWD / 4AT) - 2.0i Brighton (AWD / 4AT) - 2.5i (AWD / 4AT) - 2.0Rspec.B (AWD / 5MT) ___ 2.0Rspec.B (AWD / 4AT) ___ 2.0GT (AWD / 5MT) - 2.0GT (AWD / 5AT) - 2.0GT SI-CRUISE (AWD / 5AT) - 2.0GTspec. B (AWD / 6MT) - 2.0GTspec.B (AWD / 5AT) - 3.0R (AWD / 5AT) ___ 3.0R SI-CRUISE (AWD / 5AT) ___ model adaptation symbol: F 2008 year May-2009 2.0i (AWD / 5MT) - 2.0i (AWD / 4AT) - 2.5i (AWD / 4AT) - 2.5i SI-CRUISE (AWD / 4AT) - 2.0GT (AWD / 5MT) - 2.0GT (AWD / 5AT) - 2.0GT ES (AWD / 5AT) - 2.0GTspec.B (AWD / 6MT) - 2.0GTspec.B (AWD / 5AT) - 3.0R ES (AWD / 5AT) ___ S402 (AWD / 6MT) -
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| Remarks | * Since there is no clearance with the tail pipe, this product can not be installed together with Subaru genuine rear bumper skirt and exhaust finisher. * Vibrations and noise are transmitted more easily to the interior of the car due to the hard bushings. * For B4 non-turbo (excluding 2.0i) * The explanation of this product is for Japanese specification. |
| Notes | Images are for illustration purpose only. Actual product may vary. |
Shipping Notes
- Free Standard Shipping on $100+ Orders 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.
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4.8 ★★★★★
Based on 236 reviews
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Product Reviews
★★★★★ 5
Order with confidence!
Color: Black
Pleased with my purchase!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
★★★★★ 4
Awesome, portable room divider for larger rooms
Color: Black, Color: Black
I chose this room divider to use in my son's room that also serves as my home office! It is 72" x 72" in size, so it truly blocks out the other side of the room for optimal privacy. Once it's assembled, it's mildly sturdy - as long as you can bet both ends with the "feet" in line with the ground. I wish that the framework poles had more of an interlocking system so that the divider was easier to erect. I assembled this on carpet, so I had some issues getting the divider to stop moving. It takes a lot of work to set up, as it is massive, so definitely have someone help you. I would suggest adding weights of some sort to the feet of this divider to keep it from shifting. I ended up leaning mine against a bookcase shelf so it wouldn't lean. All and all, this is a great product if you are looking to make a room multipurpose.
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Reviewed in the United States on August 2, 2025
★★★★★ 5
As described
Color: Black
Light weight, easy to put together and you can disconnect the ends and just roll the whole thing nice and tight for quick out of the way storage. Pretty sturdy, doesn't fall over if you bump into it, you could use it outside but if there's a lot of light you can see through a tiny bit if you're really close but I only tested this indoors so not sure about patio types
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Reviewed in the United States on December 18, 2025
★★★★★ 2
Flimsy - choose something else
Color: Black
Very flimsy and barely stands up… better options out there.
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Reviewed in the United States on October 11, 2025
★★★★★ 5
Beautiful, sturdy, lightweight.
Color: Natual, Pattern Name: Divider, Color: Natual, Pattern Name: Divider
This screen is beautiful, lightweight and well-made. There is no splintering of the wood like I read in some reviews. The white fabric is thick and sturdy and even. The brass hinges seem to be high quality and were mounted precisely. This screen came right out of the box completely assembled. It was boxed well and there was no shipping damage.
I will enjoy using this as a backdrop when I am on Zoom and as a room divider in my studio.
I paid $75 for this and I think that is a bargain! I am very happy with this purchase.
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Reviewed in the United States on April 1, 2026