BMW 230i Heat Exchanger - Dinan - High Performance - 2017-2021. A purpose-built upgrade that improves charge-cooling consistency on F22/F23 230i models.

For B4x/B58 F2x/F3x platforms, Dinan replaces the thin OEM unit with a 48mm core (27mm stock) and about 78% more heat-transfer area. L-shaped end tanks add thermal mass to resist heat soak. Testing recorded an average 8° IAT drop, peaking at 15° over 15 successive WOT pulls. Includes hardware, plus xDrive transmission oil cooler brackets. Note: minor trimming of the plastic core stack shroud may be required on some cars, especially with the OEM hot-climate exchanger; see the install guide.

Features

• 48mm Dinan core vs 27mm OEM; ~78% more area
• L-shaped end tanks for greater thermal mass
• Avg 8° IAT drop; up to 15° in testing
• Hardware included incl. xDrive brackets; 100% TIG welded

Questions or planning an install? Call Austin, TX at 512-982-9393 or Los Angeles, CA area at 562-981-6800. We offer installation and customization on premises at both locations. Buying multiple items? Contact us for shipping discounts.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov