Unless you got a turbo, nothing is spooling , as for the midrange feeling like another lift, well nothing feels like lift. I know your'e over the moon with it, everyone is at the start because noise is VERY VERY deceptive. What i am referring to is if you see some old crappy v8...loud as shiet...when youre inside it feels like youre flying, but when you look at it from the outside you laugh cause the old heap aint moving nowhere....you get my drift dude.
The only true test comes when you jump back in a stockie and realise where the difference is....the midrange you think you gain, is definetly lost at low range rpm up to 3000, and definetly at top rpm...infact someone did a test recently and it cost them a few bucks too...umm showing a negative something figure, but definetly negative. Its up to them to show the real results. You know who you are. I will stay out of it.
To fix the rattles, you have to change the stock rubber mount holders to more solid units. Its a nice exhaust if you want to be heard, but as far as performance, it makes no difference, you go backwards. Not by much, nut you do go backwards.
You want performance, then buy a $30 octane boost bottle, and show up on dyno day telling everyone your car kicks **** in stock form...hey Billy Boy $30 bucks worth for +4 kW or a few hundred for -4.... B) enuff said.
Welcome back to the forums Lucio....nice to see you havn't changed a bit