Hello everyone. I've got 2013 stock Vmax and I'd like to get rid of the cat, replace exhaust and get a flash from Tim. My friend had the 4-2-1 Ufo Thundermax installed and I think it sounded amazing, but it might be too loud for the city. I guess, options are: 1. Hindle (mid pipe and slip ons) I've read somewhere about Hindle mid pipe quality issues (problem with welds ?). I wonder if that's true? Should i consider their full 4-2-1 system? Would be a similar cost as 2 slip ons and midpipe. 2. Akrapovic (mid pipe + slip ons) They seem like high quality, but pricey. 3. maybe Delkevic slip on + Akrapovic mid pipe? I like V&H slipons, but they're discontinued now. I've seen Vmax with VooDoo, but i think they're too loud and i am not a big fan of the looks. What is the best choice in terms of Sound/Performance? It's really hard to judge about the sound quality from youtube videos maybe someone had experience with both Hindle and Akrapovic? I know Tim doesn't have a flash for Delkevic, but i think these look like good quality slip ons. Also, second question - what else do i need to install? Do I need AIS system plugs? Should I do the air intake mod? What do I do with O2 sensor?