Akrapovic Stainless Steel Downpipe Featuring Integrated High-Flow Catalytic Converter – Compatible with BMW G80 M3, G82 M4, and G87 M2

Description

The Akrapovic Catted Downpipe DP-BM/SS/8 is a high-flow Stainless Steel Downpipe designed specifically for the BMW G8x M2 / M3 / M4 with S58 engine, engineered to work in concert with Akrapovic Slip-On Line or Evolution exhaust systems. This downpipe incorporates sport-oriented catalytic converters (≈200 cpsi) with heat insulation and precision-cast inlet sections from Akrapovic’s in-house foundry for excellent fitment and robust performance. The design promotes freer exhaust flow compared to stock, producing a more aggressive and emotive sound at higher RPMs while maintaining controlled character without excessive drone. Because this component significantly alters exhaust flow and backpressure, ECU remapping is required to prevent check engine lights and unlock its full potential. This product is intended for closed-course or track use and may not be emissions-legal for street use in many regions.

Fitment Notes

• Designed for BMW M3 (G80) with S58 3.0L engine (including Competition variants)

• Also compatible with BMW M2/ M4 (G87 / G82 / G83) when used with matching Akrapovic exhaust systems

• Intended for use with Akrapovic exhaust components (Slip-On Line or Evolution Line)

• Requires ECU remapping/tuning after installation to avoid error codes

• Not emissions compliant for street use in many regions and may be restricted for road use

Included

• Pair of high-flow stainless steel downpipes with integrated high-flow cats (≈200 cpsi)

• Cast inlet sections for OEM-aligned fitment

• Heat-insulated sections to manage thermal load

Product Specs

• Material: High-quality stainless steel for heat resistance and durability

• Catalytic converter: Sport-oriented high-flow units (~200 cpsi) integrated

• Design: Precision-cast sections matched to OEM turbo outlets

• Compatibility: Requires complementary Akrapovic exhaust components

• Installation: Replaces factory downpipes; professional fitment recommended 

Product Features

• Sport-oriented high-flow cats deliver improved exhaust flow while retaining catalytic function relative to more restrictive stock units

• Cast inlet sections ensure precise fitment and robust connection to factory turbo outlets

• Enhanced exhaust sound with emotional feedback at higher RPMs without excessive drone

• Heat-insulated design helps manage thermal stability in high-load driving environments

• Track-focused upgrade offering greater performance potential when paired with proper tuning and Akrapovic exhaust systems

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