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Greater heat-retention
Overall Length w/ Mid Section Installed - 16
in the form of vapors
We Ported it for better flow
The B16/B18C5 (Type R) Upper Coolant Housing offers a versatility you won't get anywhere else
BMW E39 E46 Z3 Headers For M54 Engine 325i 325xi 330i 330xi 330ci 525i 535i Bushings Greater heat-retentionE46 Exhaust Headers, specifically designed to eliminate all the common fitment headaches associated with E46 headers. Crafted with precision and superior materials, our headers are the definition of quality and performance. Say goodbye to frustrating installation challenges, as our headers will seamlessly integrate with your E46. You can finally unleash the true potential of your vehicle with enhanced exhaust flow, improved power delivery, and a
