Can anybody who has changed their intercoolers to a front mount please help me out? Im trying to find out what size they are as i have a number of options for a front mount cooler but some seem too big, Others seem too small... So basicaly, im looking to work out the volume of the stock set up ( both side mounts and the long link pipe that runs under the car, Some people i know say that a larger cooler would be best as less preasure drop and the air will simlpy take the path of least restriction. I said ye but what about the "lag" they said its not realy "lag" as such you on about, Its the responce of the throttle inbetween gears and such ( he did give it a posh name but i cant remeber ) Basicaly they said at say 1 bar of boost (asuming 100% efficency ) at 3000rpm the engine would consume 60 ltr of air a second. Meaning that if a cooler and pipe work set up was as big as say 30 ltr it would take 0.5 seconds to fill the system from vacum ( very rearly would you see vacum conditions between gears as you would be at higher rpm that the 3000 mentioned ) Then theres the pipe work do people use 51mm pipe simply because it fits better? i was told maybe something like 57mm on the hot side and 65 on the cool side would be best??