CSF Intercooler is NOT direct fit on 135i - BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
Tuning Intercooler For BMW N54/N55 Engines E82 E88 135i E90 E92 335i Z4 E89 35i | eBay