BackFire Question
I did put a smaller exhaust plate in the Borla adjustable system. I did that a few months ago.
I am selling the car in the near future. I will not sell the car unless I am comfortable in knowing the car is in perfect running order so I want to get this issue solved.
So, any thoughts on if this is more likely just a back pressure pop because of the smaller exhaust plate or what else it could be. If you think it could be something else, what would you suggest I look at?
Thanks for your help.
I was told the muffler could also be going bad.

