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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
4.7 ★★★★★
Based on 1231 reviews
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Product Reviews
★★★★★ 5
The BEST water bottle on the market!
Color: Denim, Size: 32 Ounces
I am in love with this water bottle! I take it everywhere with me, and I love that it has a built-in straw. The color is perfect as well. It motivates me to get my water intake in, and it helps me meet my fitness goals. It is easily washed in the dishwasher, and I don't have to worry about it breaking. It keeps the temperature of my water perfect- whether I add ice or not. It is sturdy but not too heavy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
★★★★★ 5
This mattress cover is great! Well worth your money
Size: Twin XL, Style: 1 Green
This mattress cover is so comfortable. I am scheduled for back surgery in a week so when I find something I can sleep on and call it comfortable you best believe it is! It fits well, it’s pretty and it’s very fluffy. Seems to be made very well. I am confident that I’ll get a lot of wear out of it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
★★★★★ 5
Very Comfortable - Love this!
Size: Full, Style: 1 Green
So far, so good! I am going on my first night trying this mattress topper out. It feels very comfortable and definitely is fluffy, but not too fluffy. I did not "fluff it out" or put it in the dryer to fluff it out quicker, so perhaps it still needs some time to fluff out some more. It was very easy to place on my mattress. I didn't have to fight with it as I normally would when fitting a sheet to my mattress. I love that it stretches over the sides of the mattress to hold it in place. The bamboo truly gives a cooler effect, which will be very helpful in the summer time. I used a microfiber mattress topper prior to ordering this topper. So far, the comparison is that this one appears to be well made and durable, unlike the microfiber one I had before that changes color as it gets old and dirty and is impossible to clean. The old one actually ripped and would constantly move. I am excited to see how well this one holds up over time. I had no trouble placing a fitted sheet over this mattress topper. I love that this one is machine washable and is able to be placed in the drier. It feels very nice on my legs and is comfortable for my back as well. The padding doesn't feel thick or bulky but definitely adds a softness that is super comfortable. It's too soon to tell if it's water resistant as I haven't tested that feature out yet. I placed it over an old, springy mattress and it truly feels like I have a whole new mattress. Time will tell how well this product does the job and I will update this review if I end up having any issues with it.
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Reviewed in the United States on May 25, 2026
★★★★★ 5
IT'S LIKE SLEEPING ON A CLOUD!!
Size: King, Style: 3 White
OMG I AM SLEEPING ON A CLOUD!!! THIS! Life changing!!! We went on a Royal cruise and asked for a mattress topper. When we got home I just had to find one for our bed because I sometimes find it to be too hard. Along comes THIS topper! The very first night it was on the bed I slept the entire night without tossing / turning which I NEVER do! Along with every night since! It fits perfectly on our King bed and no issues with the sheets. It does have a chemical smell when you first open the bag - but I put it in the dryer on air only and the smell dissipated in about 20 minutes. No smell at all by the time we went to bed. it appears to be washable. It's very soft so there isn't really any back support. Just adds comfort to the bed. It is bamboo and really as soft as a cloud! Even my husband got into bed the first night and said AHHHHHHH SOFFT! Super bright white appearance. Not sure if it is water resistant. We added it on top of the mattress protector without any issues. All of the FOAM mattress toppers are terrible! They end up getting really heavy, you can't wash them, they get lumpy, and you end up sweating like crazy on them! THIS - nice and cool! And my hubby runs hot!! I call him the heat miser! No issues! We're both very very pleased!! If you're even thinking about purchasing - ADD IT TO YOUR CART NOW!
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Reviewed in the United States on April 22, 2026
★★★★★ 4
Not like the pictures but well worth the money
Size: Queen, Style: 1 Green
4 stars because it is not nearly as padded as the descriptions and images make it seem. The filling flattens easily and doesn’t provide any support.
That being said it does make my bed more comfortable and soft and has improved my sleep quality. I have a 12 in soft/medium firm memory foam mattress that was wonderful for the last +2 years till my back surgery ~6 months ago. Since then my joints ached when trying to sleep and when waking, my back would be all out of place and achey, and I was untested. Since buying this topper these issues have improved by 80% or more. It is a great addition to my bed and I don’t regret buying it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
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