Spool

B58 5-Inch Downpipe with 200-Cell Catalytic Converter

$349.00

SKU: SP-B58-DP-5

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The Spool B58 5-inch downpipe is a high-performance exhaust component engineered to enhance your vehicle's B58 engine. Constructed from durable 304 stainless steel, this downpipe is built for longevity and resistance to corrosion. This downpipe features a 5-inch diameter and incorporates a 200-cell Euro 5 catalytic converter. The product includes a lifetime warranty, reflecting Spool's confidence in its quality and durability. The Spool B58 downpipe is compatible with a range of BMW and Toyota models equipped with the B58 engine, including the 240i, 340i, 440i, 540i, 740i, A90, A91 Supra, and other B58-powered vehicles (Gen1, Gen2, TU variants).

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandSpool
Part NumberSP-B58-DP-5
CategoryExhaust

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

View Full Shipping Policy