CSF 2011+ BMW 1 Series M / 08-11 BMW 135i / 07-11 BMW 335i M/T Radiator

Upgrade your BMW N54 engine cooling system with this premium CSF all-aluminum performance radiator engineered specifically for 2011+ BMW 1 Series M, 2008-2011 BMW 135i, and 2007-2011 BMW 335i manual transmission models. This high-performance racing radiator features CSF's exclusive B-Tube Technology with a 2-row 42mm dual-core design that delivers 25-30% improved cooling efficiency compared to factory plastic radiators. The innovative B-tube construction increases heat transfer surface area by 15% while using lighter, more durable aluminum material. CNC-machined quick-connect fittings, brackets, and hardware ensure OEM-quality fitment without modifications. Ultra-efficient multi-louvered fins with 6.5mm height maximize airflow and heat dissipation. Mirror-polished satin finish adds show-car aesthetics. Direct drop-in replacement accepts all OEM components including hoses, AC condenser, mounting brackets, and fan shroud. Replaces BMW OEM part number 17117558480.

Prevent engine overheating and limp mode during track days or spirited driving. Eliminate fragile plastic end tanks prone to cracking and failure. Maximize horsepower potential with consistent lower coolant temperatures. Perfect for high-performance builds, turbo applications, and motorsports use. Backed by CSF's industry-leading 2-year warranty and over 50 years of cooling expertise. Essential upgrade for aging E-series BMW models with high mileage. Keep your turbocharged BMW running strong under extreme conditions.