thanks guys for input. but to clarify the kit only comes with can and mounting kit. as stated you will have to buy a few things listed above ie: hoses, clamps, and a reducer from a home depot, lowes, etc.
also im not sure about the 135i. i see the riss racing occ is the same for the 135 as it is to the 335i. so im assuming they use the same bracket, can, etc so this should work, i can't guarentee this though.