NPP Exhaust

[Blown1LE]

Originally Posted by UBB

NPP with pulled fuse and LTH is LOUD!

Thats my set up.. Headers. No cats and the NPP which it came with when I bought it. Sometimes, especially when cruising I wish it was not so loud in the cabin so I am contemplating selling it and going another route

[Blown1LE]

Originally Posted by dentnshell

If you are worried about sound levels inside the car. Sound deadener in just the trunk wheel well dropped my interior noise by 3db as measured from an iphone app. For those that don't do sound 3db is about a doubling or halving of power. Since then I have done under the rear seats and the deck lid as well. Quite a bit inside the rear hips of this girl. Just the cheap noico stuff from Amazon. World of difference inside.

I think I may have to try that !! Thanks for the tip