Fits All Gen 1 and Gen 2 B58 Engines (including Mk5 Supra)
Unlock your engine's full potential with our precision-engineered B58 High-Flow Catless Downpipe. Designed for true performance enthusiasts, this downpipe features a genuine 4.5-inch or 5-inch diameter from turbo to exhaust connection, delivering superior exhaust flow and turbo efficiency. Unlike competitors, our design ensures no restrictive tapering right after the turbo, preserving peak flow and maximizing your engine’s power output.
Engineered for bolt-on compatibility with your OEM exhaust, installation is hassle-free. Alternatively, for those running custom setups, the downpipe can be cut at the taper and welded to a larger exhaust system, aided by a high-quality flex joint to ensure a seamless fit.
Key Features:
- True 4.5-inch or 5-inch diameter for maximum flow and reduced backpressure
- Enhances turbo performance by relieving stress and improving efficiency
- Compatible with both OEM and custom exhaust systems
- Built to last with premium materials, ensuring durability under extreme conditions
For Off-Road and Track Use Only: Installing this product on a street vehicle is illegal in many regions. We do not endorse or sell for road use.
Fitment: This downpipe is compatible with all BMW and Toyota B58-powered models, including:
- BMW 340i / 440i / M240i / M340i / M440i / M140 (2015–2023)
- BMW X3 / X4 / X5 / X7
- Toyota Supra A90 / A91
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Shipping Information for Performance Parts
We proudly ship parts worldwide! All orders are processed Monday through Friday. Please allow 1-3 business days for order processing before shipment. We do not ship on weekends or public holidays.
| Estimated Shipping Times: | |
| U.S. & Canada: | 7-10 business days |
| International: | 10-30 business days (varies by location and customs processing) |
| Larger or Oversized Items: | May take longer due to handling, packaging, and freight requirements |
Shipping times may be affected by product availability, high demand, holidays, or unforeseen circumstances. For order updates, contact us at info@eguysperformance.com or DM us on Instagram @eguysperformance with your order number.
| Shipping Rates: | Calculated at checkout based on location and order weight |
| Customs & Import Taxes: | International orders may incur fees, duties, and taxes determined by local customs offices. These charges are the buyer’s responsibility. We are not liable for customs delays. |
What Does the E Guys Performance Lifetime Warranty Cover?
Our Lifetime Warranty is designed to give you peace of mind. Here’s what’s included:
| Available to the Original Purchaser: | This warranty applies exclusively to the original purchaser of the product. Coverage is valid for purchases made directly from E Guys Performance or through an authorized dealer. |
| Manufacturer Defects: | We cover defects in materials or workmanship. If a product fails due to a manufacturing issue, we will repair or replace it at no cost. |
| Shipping Costs for Warranty Claims: | We cover shipping costs for replacement parts on approved warranty claims, so you won’t incur additional fees. |
What Isn’t Covered?
| Improper Use or Installation: | Damage from incorrect installation, misuse, accidents, or normal wear and tear is not covered. |
| Modifications: | Any modifications made to the product will void the warranty. |
| Intended Use: | Products must be used as intended for the warranty to remain valid. |
Customer Reviews
Based on 6 reviews
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M
Mk5 Supra 2021 and man it’s great sounding really good quality reasonable prices and really helpful costumer service 😊🙏
r
Pretty good welding Nice design on the downpipe very excited to try it out
A
Really good quality metal and welding!! Also designed well, even better than options on the market that are 4 times the price. Fits well in a 2021 BMW X3 M40i G01. Makes loud boom.
I
BMW/Supra Gen 1 & 2 B58 4.5-inch Catless Downpipe
B
BMW/Supra Gen 1 & 2 B58 4.5-inch Catless Downpipe
