Monza Exhaust or Euro+Drive Tuning System???

Hey All,
So I got a nifty little bonus from work, and I have just enough to get either the Monza Exhaust or Euro+Drive Tuning System...

I am just not sure which one to get. I eventually want both, but which one to get first is killing me...lol Either way, whichever one I get 2nd might be a while before I could get it...so I am looking for some advice from the more experienced Spider peeps that have these mods installed. I am leaning toward Monza for simplicity and exhaust sounds, but I want the performance boost from the tuning system, so I am torn. Input is greatly appreciated! Thanks!!

"Oh come on lotto, I want all the things!!!"

Tizz 😬