I have seen on here people remove these vavles and by pass them just wondering if someone can tell me whatthey do? sorry if its already been covered 100 times over.
thanks
Add a few 0s to that
Heres a
guide on removing the
SAI
As for the other two the N249 is a backup vacum storage or something which can be removed by 'bypassing' hence the N249 bypass mod.
And the N112 are two valves which regulate the boost I think?
In all honestly Im not 100% what they do but I removed mine for cosmetic reasons and looks 100x better once done
Just do a search mate and you will be flooded with stuff about the N249 bypass, N112 and the SAI.