It's not attached to the hood, but rather the foil-lined insulation secured to it. I removed my hood scoop on my '04 a few months back for some cleaning, the ground wire went straight to that insulation piece.
I presume it's grounded due to it's contact with the alternator and battery
Now that's just my opinion, I could be wrong...
Yeah, when I got my Slp loudmouth 2 catback I installed it by itself for a few months then bought my x pipe and just that made it really loud! I can't imagine how much louder it would be with the loudmouth 1!
With the stock manifolds and the mid pipe lm1 won't be that loud. Yes it will be louder than most but if you want stupid loud put a off road pipe on it. Taking the stock mid pipe off and putting an off road one is where you will see the biggest difference in sound quality and loudness
2007 Mustang Gt
2.3L Whipple Supercharger
Brenspeed Detroit Rocker Supercharger Cams
XXR 521 Wheels
20x8.5 and 20x10.5