Chip in fact you can get ALS grp.N way without any mods to throttle body or idle valve (in fact you don't need that valve at all then), you just blokc the throttle at 20-30% open and do the rest by proper mapping. I don' tknow if it can be done with standard Cossie ECu but I presume it must be possible, it's typically done so with standa alone managments and different rallycars in grp.N where you cannot alter anything mechanically.

The downside is that off ALS driving and idle is crap then and EGT's are high at idle due to revs reduced by ignition.