MAD S58 High Flow Inlets - G80 M3 | G82 / G83 M4 | G87 M2 | F97 X3M | F98 X4M

/ PRODUCT ·INLETS

MAD S58 High Flow Inlets

Name: MAD S58 High Flow Inlets - G80 M3 | G82 / G83 M4 | G87 M2 | F97 X3M | F98 X4M
Brand: MAD
SKU: MAD-146-BLK
Availability: InStock

4.8 163 ratings

[ VERIFIED FITMENT ]

G80 M3G82 / G83 M4G87 M2F97 X3MF98 X4M

Finish

Black

Polished

$0.00

Shipping calculated at checkout.

Shipped from USA

Additions

/ 01 · OVERVIEW

Unleash the full airflow potential of your BMW S58 engine with the MAD High Flow Turbo Inlets. Designed for performance-focused enthusiasts, these CNC billet inlet pipes replace the restrictive factory units to improve airflow, turbo response, and overall efficiency. Whether you are running the stock intake or an aftermarket intake that uses the factory connection size, these inlets are a direct fit.

Precision machined from solid billet aluminum, the MAD S58 High Flow Inlets feature smooth internal transitions and optimized geometry to reduce turbulence before the turbochargers. This results in faster spool, improved throttle response, and stronger mid to high RPM performance without sacrificing reliability or fitment.

Key benefits

CNC billet aluminum flanges
Machined from high-quality billet aluminum for strength, heat resistance, and smooth unrestricted airflow.

Improved airflow and turbo response
Larger internal diameter and optimized design reduce intake restriction, helping the turbos spool quicker and breathe more efficiently.

Direct bolt-on installation
Designed to install without modification using factory mounting points and hardware locations.

Stock and aftermarket intake compatible
Fits the factory intake system and aftermarket intakes that retain the stock inlet connection size.

Ideal for stock or upgraded setups
Perfect for stock turbo vehicles and works seamlessly with tuned setups looking for improved airflow efficiency.

Performance specs

Bank 1
Turbo side: 54mm (OEM 45mm)
Inlet: 67mm (OEM 65mm)

Bank 2
Turbo side: 54mm (OEM 45mm)
Inlet: 57mm (OEM 54mm)

Vehicle fitment

- G80 M3
- G82 M4
- G87 M2
- F97 X3M (LCI 2022+ only)
- F98 X4M (LCI 2022+ only)

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Ships in 1-3 Days

Flat Rate Shipping

Fully Insured

Processing: In-stock items typically ship within 1–3 business days. We do our best to get every order out as quickly as possible. All orders are quality-checked and ship with full insurance coverage. If an item is out of stock, we'll reach out ASAP with an ETA.

Carriers: Carbon fiber and performance parts ship via UPS. Smaller items ship via USPS.

Tracking: You'll receive a confirmation email when your order ships with a tracking link — you can also track it anytime from the order page linked in that email. Allow 1–3 business days for tracking to update.

International: We ship worldwide. Contact us at sales@horizonmotorsport.com for international shipping quotes.

Signature: We may require a signature for high-value orders. Please be available during your estimated delivery window.

FEATURED BUILD

G80 M3 Competition

OWNER

AP2 Performance

Orange County, CA

SPEC SHEET

VR1 FRONT GRILLSP2 FRONT LIPPERFORMANCE V1 SIDE SKIRTSPERFORMANCE V1 DIFFUSERPERFORMANCE V1 INLETS

F80 M3

OWNER

Brian

Los Angeles, CA

SPEC SHEET

CS V2 FRONT LIPPERFORMANCE V1 SIDE SKIRTSV STYLE DIFFUSERPERFORMANCE V2 MIRROR CAPSGTS STYLE HOOD

@bbriaann_

A90 Supra

OWNER

Danny

Orange County, CA

SPEC SHEET

AG1 FRONT LIPAG1 SIDE SKIRTSAG1 REAR SPATS

OWNER

Brandon

Irvine, CA

SPEC SHEET

VR1 FRONT LIPCSL V1 FRONT GRILLPERFORMANCE V1 INLETSPERFORMANCE V1 MIRROR CAPSHM S58 CATBACK EXHAUST

Built for BMW Enthusiasts

We specialize in quality aftermarket parts for BMW M-cars. Every part we carry is selected, inspected, and shipped with the same care you'd give your own build. Our goal: help you get your car looking and performing exactly how you envisioned it.

Learn More

/ ? · ASK A QUESTION

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Fitment uncertainty, install details, compatibility with other mods — whatever it is, our team replies personally, usually within 24 hours.

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MAD S58 High Flow Inlets

Additions

Customer Reviews

Built by Our Customers

AP2 Performance

Brian

Danny

Brandon

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