That doesn't sound bad at all to be fair. Have you seen my video I put up about 2 weeks ago? You'd like the sound of them while giving them a bit of a heavy foot.

By the way engine bay would look spot on with the ignition wire(why its called wire for is beyond me) separator. I do think you are missing a bracket though.

Just to add you can fit the stage 2 FMIC without cutting the front bumper.