I currently have a 4 into 1 Vance and Hines exhaust. It was installed sometime ago and has been jetted appropriately. My question is, can I revert back to the original exhaust without re-jetting? Will it just run rich or will there be other repercussions/issues? Right now I am just thinking things through as I would like to eventually bring the FJ back to complete original condition. I know that I will lose performance and that awesome exhaust tone...
Thanks!!
No.
But it's not difficult to return things to stock spec, if that's what you want.
Thank you, Andyb!
I thought that was going to be the case but thought I would check in with the experts.