Capristo BMW M3/M4 (G80/G82) - 250 Cell Downpipe
Ships from the brand or distributor, usually in 3–7 business days
Make sure this fits your car
Fits: BMW S58: M3 (G80/G81), M4 (G82/G83). Confirm your exact car with us before ordering.
For off-road / competition use only. Not legal for use on public roads in the United States, including California.
- Shipping at real carrier rates
- 30-day returns on unused parts
- Fitment help before you buy
A downpipe with a high-flow catalytic converter lets the turbos exhale more freely than the factory unit allows. Capristo builds this one from T309 (1.4828) stainless and hand-polishes it to a mirror finish. The cat is a large-diameter sport unit, sized so the substrate isn't choked down in a narrow pipe.
What you get
- T309 (1.4828) grade stainless steel, hand-polished.
- Sport catalytic converter with a low cell count. Fewer, larger channels per square inch let more exhaust gas through.
- 5.2-inch cat housing so the substrate can flow to its full potential.
- Designed to work with Capristo's valved exhaust, which keeps back pressure at low rpm for torque and opens up for free flow at high rpm.
Brand: Capristo Exhaust · Part #: 02BM07403027
For off-road / competition use only. Not legal for use on public roads in the United States, including California.
BMW S58: M3 (G80/G81), M4 (G82/G83). Confirm your exact car with us before ordering.
| Model | Chassis | Years | Engine | Fits |
|---|---|---|---|---|
| M3 | G80/G81 | 2021+ | S58 (BMW M) | |
| M4 | G82/G83 | 2021+ | S58 (BMW M) | |
| M2 | G87 | 2023+ | S58 (BMW M) | |
| X3 M | F97 | 2020–2024 | S58 (BMW M) | |
| X4 M | F98 | 2020–2025 | S58 (BMW M) |
Not sure? Email sales@b58racing.com with your VIN.
- Ships from the brand or distributor, usually in 3–7 business days.
- Shipping is charged at the carrier's rate, shown at checkout. Orders over 70 lb ship by freight for a flat $99.
- Unused parts can be returned within 30 days. Some items are marked no-refund in their description.
Full details are on our shipping and returns page.
Guides for this part
S58 Downpipe Install: G80 M3, G82 M4, G87 M2 and F97/F98 X3 M/X4 M
The S58 has two turbos, so you're swapping two downpipes, two turbo gaskets and four oxygen sensors. The job is done mostly from underneath. You drop the underbody trays and the center brace, support and unbolt the mid p
BMW S58 Mods Guide: M2, M3, M4, X3 M and X4 M Upgrades in Order
On an S58, start with a tune and cooling. These cars make a lot of power stock, and heat is what holds them back on hot days and back-to-back pulls. Next come downpipes and a tune built for them, then fuel: an ethanol an
Pairs well with
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