@@AUtoverse. Cheers, I am going for a 3" exhaust upgrade then saw this vid. Pretty impressive. I did a quick google search too and sounds like theres advantages to both muffler delete and straight pipe, the biggest negative being with the extra noise it creates and then getting pulled over by the cops. I notice you said in a earlier comment though you have had no issues with this and I note you did this video 3 years ago which is encouraging to go for this setup.