Wouldn't a JB4 void warranty since it changes stock settings?
It's a piggyback, not programming. It just lies to the computer, it does not change settings.
You can just remove it and the dealer can't tell the difference.
Maybe the dogbone, if that. Why create extra noise/vibration on a stock car?
Even when you do turn the power up, dogbone is the only one you need unless you're launching on a prepped surface.
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Umm, even on a stock tune Oem motor and trans mounts are complete jelly after a dog bone and 10-12k miles. The 034 density line actually is less nvh than stock imho. The bfi mounts do create some nvh though.
Like I said, building up your foundation and shifter is probably your best bet. Maybe catback if you're into that sort of thing.
I have 20k tuned miles (about 17k over 300whp) and have never felt the need upgrade anything besides the dogbone, and that was only to help wheel hop at the track.
Really didn't do much to be honest. Car still spins smooth on the street and wheel hops horribly on a prepped surface, slightly better than stock.
I have the ECS dogbone and 034 insert...waste of $200 for street use.
Replacing all the mounts on a stock car = cart before the horse IMO.