MMX Performance MINI F-Chassis Performance Intercooler

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The MMX Performance intercooler is a substantial cooling upgrade for F-Series MINIs running the Cooper S or Cooper S JCW powertrains. The factory intercooler is one of the first th ermal limits a tuned B46/B48 MINI hits, once charge-air temps climb, timing pulls and power drops on every successive run. This intercooler resolves that. The tube-and-fin stepped core delivers nearly double the core volume of the OE unit, with a 70% increase in frontal area. That extra cooling capacity translates to substantially lower charge-air temperatures both at sustained throttle and on back-to-back pulls, the kind of conditions where the OE cooler thermally saturates first. The real-world impact is heat-soak resistance. On a stock car you preserve consistent power across multiple runs; on a tuned car you unlock the headroom to actually use the boost the tune is requesting, without timing pull masking the gains. It is the foundational piece for any meaningful F-MINI tune. Choose the variant that matches your car at checkout, the Cooper S and Cooper S JCW each get a dedicated SKU. Chargepipes are available separately and are a strongly recommended companion when running elevated boost. Product Details Tube-and-fin stepped core construction Approximately 2× OE core volume 70% increase in frontal area versus OE Substantially reduces charge-air temperatures Vehicle-specific variant: Cooper S or Cooper S JCW SKU MMR05-1402 (Cooper S), MMR05-1401 (Cooper S JCW) Vehicle Applications MINI Cooper S / JCW (F56) Notes B46 and B48 engines only. Does NOT fit cars with the B48D engine code. Pre-LCI F56 only: does NOT fit LCI models. Does NOT fit MINI F57 Convertible. Includes a 1-year manufacturer warranty against defects in materials and workmanship Designed and tested in the United Kingdom View emissions compliance notice Show more