If you have front frame bracing (including connecting brace) you may run into fitment issues with anything other than a stock I/c. I had a bigger combo picked out and changed it up midstream soon as I realized a bigger slic would interfere with connecting brace, went back to duttneck/alky te44 restalled 12" tc. just for the sake of keeping the car as solid as possible.. Far as a precision slic my opinion is even if its overkill capacity wise, it can provide other benefits such as helping to run a slightly tighter converter for a particular turbo due to less restriction allowing turbo to spool slightly faster, that in addition to larger less restrictive intake track and maybe the ball bearing option for a given turbo could allow you to run a tighter converter to closer match the rpm range of your cam.. as the smart ones here say its all about combo and there certainly is more than one way to skin the cat