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BMW E46 M3 CSL airbox installation on standard M3 (S54B32)

Posted: Tue Oct 01, 2024 11:41 am

by spinecki

BMW E46 M3 CSL airbox installation on standard M3 (S54B32)

Benefits:

Increased airflow
Improved throttle response
Enhanced induction sound

Parts needed:

CSL airbox (part number: 13717831907)
CSL air filter (part number: 13721730449)
CSL intake boot (part number: 13541318340)
Various hoses and clamps

Installation steps:

Remove standard airbox and intake system
Install CSL airbox and intake boot
Modify or replace brake booster hose
Install CSL air filter
Reroute and connect all necessary hoses
Optionally, remap ECU for optimal performance

Note: While this modification is popular, it may not be legal for road use in all jurisdictions. Check local regulations before installation.