Hey guys , i'm new here
I recently tuned my 14 228i using bm3 stage 1 tune and it works great without any issue, my car is full stock. However, i am looking into the stage 2 where the recommend spec says i need a high flow downpipe and a upgraded intercooler,
so im wondering if i tune my car to stage 2 but keep it all stock spec, will it damage my car?
Thanks!!!!!