Hey Guys!
This is my first post so I'm sorry if its in the wrong place and sorry if it seems like a silly question
Anyway i have a 2 litre GT and its stock (performance wise) and i was browsing good old gumtree and came across a 3" aftermarket mid pipe to suit a liberty for a $100.. but, I'm worried that if i keep the stock y-pipe and rear mufflers it might create some sort of back pressure issue or send a sensor haywire.. so if there was someone that knows a little about exhausts could you please help me out! it would be really appreaciated
-Jayden