

SLN BMW S58 X3M X4M Pre LCI Non-Resonated Single Mid Pipe
The SLN Performance Single Mid Pipe transforms the sound of the S58-powered X3M/X4M by removing the factory rasp and deepening the exhaust tone. Designed for Pre-LCI models, this non-resonated mid section provides maximum flow, improved turbo response and a far richer, more aggressive sound.
Fitment: F97 X3M / F98 X4M (Pre-LCI)
Key Features
Non-Resonated Mid Section
– Maximum exhaust flow
– Deeper tone with reduced rasp
– More aggressive sound under load
Performance Benefits
– Faster turbo spool
– Improved mid-range torque
– Smoother exhaust note
High-Quality Stainless Construction
– 304 stainless steel
– 100% TIG welded
– OEM-spec flanges and brackets
Benefits
The perfect solution for X3M/X4M owners who want a deeper, cleaner S58 exhaust note without resonance issues. Noticeable improvement in response and character.
Fitment
– BMW F97 X3M / X3M Competition (Pre-LCI)
– BMW F98 X4M / X4M Competition (Pre-LCI)
Installation Notes
– OPF models require coding/tuning to disable OPF monitoring
– Professional fitting recommended
About SLN Performance
SLN Performance produces high-strength stainless exhaust components engineered to improve sound, flow and performance across BMW S58 platforms.

