i think he's saying, dont waste your time with a side mount. theyre too small, get heatsoaked, and dont cool efficiently on the street.
i agree
the problem with using a thicker core smic to increase volume is that the thicker you go, the less efficient it is. its coz the air trying to cool the core is getting too hot by the time it passes that deep.
if the r34 smic isnt enough, go with a front mount. the benefit of the front mount is the larger front surface area. it can dissipate the heat much better. you will see how cool it remains after a good hard run compared to a smic that will be really fkn hot. that pretty much tells the whole story. ive had both, r34 smic with shroud, and fmic, and that's how it was for me.
but thats just my opinion