PART NUMBER: 61-2121
Features CSF's patented "B-Tube" technology - a specially engineered tube in a shape of a "B" that is carefully formed and then brazed over the seam to seal. CSF is able to use thinner and lighter aluminum material (better cooling efficiency) because this design is actually stronger than normal "O" shape tubes that are welded. What does all that mean? CSF has the most efficient tube design in the industry. High efficiency means the core doesn't need to be made extra thick to get the best cooling, so these radiators outperform other brands while remaining the lightest option as well.
1 row 31mm core w/ B-Tube technology
High efficiency 6.5mm fin height
All CNC machined brackets and fittings
High polished finish
This radiator is a drop-in fit in the 2016+ MX5 and includes CNC machined brackets to mate up to the factory locations.
INSTALLATION: Be sure to check clearance to all A/C condenser bits, factory was not incredibly consistent and sometimes condenser brackets need to be bent away from larger radiators for clearance, also check bolts on those brackets for clearance, etc.
Update 2019, testing found that in this application big single pass actually did better at the track so design reverted from triple pass to single going forward.
Drop in fit makes this a no brainer upgrade. If you are a spirited driver, you will really appreciate the additional cooling headroom. Goodwin Racing customer service was exemplary as usual.