Originally Posted by JamJay
Wagner do two coolers. One is a direct bolt in with no cutting, it's bigger than the OE cooler, similar in volume to the ETS 5" but it uses factory couplings where as ETS replaces those. The second Wagner Intercooler is much bigger, the kit consists of new piping and requires cutting.
I was looking at it over at HPA:
It says no cutting etc, but as it turned out Helix does require a bit on the 135i and the Wagner is supposedly a copy, so I have my doubts...
I'm not a huge fan of the ETS, I don't know what it is about it to be honest but somehow it doesn't seem very high quality. The Forge units look significantly more polished (not as in shiny, but as in attention to detail). But the Forge is really expensive...
Has anyone here done an install of the ER Competition intercooler on their 135i? Lots of cutting?