just curious if an s4 bac will run properly with an s5 engine. all i can seem to find for sale anywhere are for an s4 and its getting a lil old having my a/c kill my car, my brakes dim my lights, and my idle suck *****.

thanks guys!

 

The connector is different and the positioning of the intake nipple is different as well.
Not sure it would even physically bolt up but if it did you'd still have those two issues to overcome.