Stupid question time...........
How do you know if your car is fitted with a sports exhaust or a standard exhaust?

My sports exhaust increased in diameter to 54mm and the tail pipe to 57mm, the silencer main body length reduced to 550mm and 115mm in diameter (not oval as before) A lot louder too

Mines a 4/4 though, difference here
![[Linked Image]](https://tm-img.com/images/2021/09/22/9AC0C723-12A5-4C3A-9247-9D109DA31394.jpg)
