hey guys i was wondering my supra is pretty much stock *(except intake)* i am going to get alot of stuff when i start my new job but i was wondering i have a tanabe dp and my friends are going to the track and wants me to go and i dont really want to just because my car is stock but i have the downpipe and i just thought of running a open dp and was wondering if it would damage anything if i ran it like that for the night? i dont think so but i want to ask the pros if i am about to do something stupid ok thankz guys