custom c280

i have a 06 c280 i did exhaust eurocharge tune but wanna know if i should change my throttle body my exhuast is only cat back. i mean how much more difference am i gonna notice in the drive i know its not a race car but my car and i wanna tune it so its a nice ride and some performance.

thank you guys for your info

custom c280

and if so which size throttle body should i get

sammydragon3

ur not gunna get any performance from doing that