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Description
XForce | 4" to 3 3/8" Catted Down Pipe | Toyota Supra GR & BMW B58 2016–2025 | E2B58KITBXForce 4" Catted Turbo Downpipe Toyota Supra GR & BMW B58 E2B58KITB Unleash the true potential of your B58 powered vehicle with the XForce Catted Downpipe. Engineered for maximum performance, this downpipe features a massive 4" inlet to ensure optimal exhaust flow and significantly reduced backpressure right at the turbocharger. The inclusion of a 200 cell high flow metallic catalytic converter provides exceptional performance gains while maintaining
XForce 4" Catted Turbo Downpipe - Toyota Supra GR & BMW B58 - E2B58KITB
Unleash the true potential of your B58-powered vehicle with the XForce Catted Downpipe. Engineered for maximum performance, this downpipe features a massive 4" inlet to ensure optimal exhaust flow and significantly reduced backpressure right at the turbocharger. The inclusion of a 200-cell high-flow metallic catalytic converter provides exceptional performance gains while maintaining a catted setup. Designed with precision, the E2B58KITB includes a durable Euro-style mesh flex bellow to allow for smooth fitment and engine movement, tapering to a 3 3/8" outlet for unrestricted power delivery and an exhilarating driving experience.
What's in the Box?
- 1x 4" to 3 3/8" Turbo Downpipe
- 1x 200-Cell Metallic High-Flow Catalytic Converter (Integrated)
- 1x Euro-Style Mesh Flex Bellow (Integrated)
- Installation Gaskets & Hardware
Features:
This product offers the following high-performance features:
- Maximum Exhaust Flow: The 4" inlet size drastically reduces turbo backpressure, allowing the B58 engine to spool faster and produce more power.
- 200-Cell Metallic High-Flow Cat: A high-performance race cat that provides superior flow compared to factory ceramic units.
- Premium 304 Stainless Steel: Crafted from high-quality 304 stainless steel with a non-polished matte finish for superior heat resistance and durability.
- Euro-Style Flex Bellows: Features a high-quality mesh-covered flex section to absorb vibrations and ensure a long-lasting, precise fit.
- Precision Taper: Steps down from a 4" inlet to a 3 3/8" outlet to optimize gas velocity and power delivery.
Specifications:
- Make: Toyota / BMW
- Model: Supra GR (A90) / M140i / M240i
- Year Range: 2016–2025
- Material: 304 Stainless Steel (Matte Finish)
- Inlet Size: 4 Inch
- Outlet Size: 3 3/8 Inch
- Cat Type: 200-Cell Metallic Race Cat
Important Information
- The image shown may not reflect the actual product
- Shipping times may vary depending on destination and stock availability
- Note: An ECU Tune is strongly recommended after fitment to optimize performance and prevent CEL.
- Note: This unit will NOT bolt to the factory standard cat-back system.
Vehicle Applications:
Vehicle Applications for E2B58KITB
| Make | Model | From | To | Body | Series | Engine | Variant | Drivetrain |
|---|---|---|---|---|---|---|---|---|
| TOYOTA | ||||||||
| TOYOTA | SUPRA | 03/2019 | 2025 | Coupe | A90 / J29 (MK5) | B58 | 3.0L Turbo | GR Supra | RWD |
| BMW | ||||||||
| BMW | 1 SERIES | 2016 | 2019 | Hatchback | F20 | B58 | 3.0L Turbo | M140i | RWD |
| BMW | 2 SERIES | 2016 | 2020 | Coupe | F22 | B58 | 3.0L Turbo | M240i | RWD |
Warranty Information
| Product Type | Warranty Period |
|---|---|
| 304 & 201 Stainless Steel Exhaust Systems | 60 Months |
| Accessories | 12 Months |
| Catalytic Converters | 12 Months |
| Electronic Products (Including SmartBox) | 12 Months |
| Mild Steel & 409 Stainless Steel Exhaust Systems | 24 Months |
| Mild Steel Headers | 12 Months |
| Stainless Steel Headers | 24 Months |
| Universal 304 Stainless Steel Mufflers | 24 Months |
| Universal Mild Steel & 409 Stainless Steel Mufflers | 12 Months |
Payment & Security:
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 2403 reviews
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Product Reviews
★★★★★ 4
More like a mint candy than mouthwash.
Flavor Name: Mint, Size: 3.5 Ounce (Pack of 1)
Hard to describe this product. Does it work like your typical mouthwash? No. Does it leave your mouth feeling minty and fresh? Yes, to a certain extent. Would I consider this an alternative to mouthwash on a consistent basis? No, it's ok for traveling because it's easy to transport.
When you chew this tablet, it has the texture and feel of a traditional mint. It's chalky and breaks up easily.
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Reviewed in the United States on April 28, 2026
★★★★★ 5
Great Product
Flavor Name: Citrus Mint, Size: 3.5 Ounce (Pack of 1)
I absolutely love this product! It keeps my breath fresh and no sensitivity issues.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
★★★★★ 3
Not a fan of this one
Flavor Name: Mint, Size: 3.5 Ounce (Pack of 1)
I am not a fan of this product. As many of the reviews noted, the flavor is very strong. I was surprised it wasn't more minty. This is a very herbal concoction. It also tastes of the other very strong herbs, especially the rosemary. According to the instructions, this product should be used once a day for 30 seconds. I prefer a product I can use twice a day for 45 seconds to a minute.
My experience is that it takes 30 seconds just to crush it up enough to swish it around and I don't have enough saliva in the morning due to overnight dry mouth. I have to add a little water. The tablets never crush completely and leave a mess in the sink that has to be carefully rinsed away. If I use them more often, my mouth dries out too much and tastes like the tablets all day long. It's not a bad taste but I expect it to go away after a half-hour (or so). They are really chalky.
The container isn't bad, but doesn't pour 1 tablet out at a time. Meh. I don't like touching a bunch of them each time. There is a desiccant packet in with the tablets to protect them. I am not sure this would stay closed during travel or be allowed on a plane in carry-on. It should travel ok otherwise because it's not a liquid, but I haven't tried it. I will probably not buy this product again, but in all honesty, I have bought far worse products and been disappointed far more by them.
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Reviewed in the United States on December 3, 2023
★★★★★ 5
Its like they knew what I prayed for🙏🏽
Flavor Name: Mint, Size: 3.5 Ounce (Pack of 1)
Okay, let me start by saying I am a huge skeptic. I need to research things to the nine's and read legit reviews before I buy anything new.
I have had cavities from a very young age and receeding gumlines all my life. At age 50, I have gone all natural, got rid of everything toxic, and got really healthy. I have been listening to Dr. HUBERMAN podcast on you tube and found one he did on oral health. He gets very detailed about how to heal your oral health. He spoke specifically about hydroxyapetite and xylitol and their benefits.
I then started searching for mouthwashes with these ingredients because i am seriously concerned my teeth are going to fall out from these receeding gums. I have been told all my life there was nothing you can do. I knew in my gut that was a lie. I knew there had to be a way to heal our mouths naturally.
Then found BOKA. I got them. I tried them. I lOVE THEM! They are perfect! They are minty fresh, easy to use, makes my mouth feel clean and if they actually do heal my mouth....then awesome sauce!
I read all the reviews. I see the after taste. But, i think its a personal choice. I like the after taste. It tastes and feels like a clean mouth.
I feel the tinglyness. Yes. But I believe from my health and science background it is the mint, aloe, probiotics and everything else stimulating the skin and blood to start the regeneration of skin and mineral. Im happy to report back again in a month or so with outcome plus before and after photos👍🏽
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Reviewed in the United States on April 5, 2024
★★★★★ 5
No mess or spill...
Flavor Name: Citrus Mint, Size: 3.5 Ounce (Pack of 1)
Great product! Makes easy for travel and use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026