BMW M3/M4 (G80/G81/G82/G83) S58 Catless Downpipes from BlackBoost

Catless downpipes in 304 stainless steel for maximum performance

Upgrade your BMW M3/M4 (G80/G81/G82/G83) with a set Catless downpipes from Blackboost - constructed to maximize exhaust flow and performance from the potent S58 3.0L Twin Turbo Racker. These downpipes replace both primary and secondary catalysts (DPF/OPF*) and provide a dramatic improvement in response, sound and effect potential.

The system is built in Low carbon 304 stainless steel, mandrel bent and hand-tig-welded with precision. Thanks to advanced CAD design and laser-cut OEM brackets, you get perfect fit and simple bolt-on mounting. Diameters from 3 to 5.5 inches Provides optimal flow and reduces the back pressure - ideal for high performance applications above 1000+ WHP.

Highlights:

• Full bypass of catalyst and particle filter (DPF/OPF*)

• Significantly increased exhaust flow and lower back pressure

• Provides one aggressive soundscape 

• Handmade in 304 stainless steel with TIG weld and mandrel bending

• Laser-cut brackets for easy OEM mounting

• Bolt-on installation-no modifications required

• Compatible with both blackboost and other turbo upgrades

📌 Note:
- Not approved for street use. Only for track.
- Catalyst removal requires tuning to disable warning light (CEL).
- Use happens at your own responsibility.

✅ Suitable for:

• BMW M3 (G80/G81) - S58 3.0l i6 Twin Turbo (2021–>)

• BMW M4 (G82/G83) - S58 3.0l i6 Twin Turbo (2021–>)

🛠️ Mounting:
We offer professional assembly of blackboost products through our partners. Do you want offers for mounting?
Contact us at info@kongperformance.no For more information and price quotes.

📦 Delivery:
This product is order item with expected delivery time of approx. 1-2 weeks.
Feel free to contact us for updated information and accessibility.