new exhaust
Iv got a 5 inch single turbo back with a muffler and its so loud ppl think its straight piped. But the 5 inch is so big it touchs everything. If i were u put a 4 inch on and go with it, your gonna love that whistle
5" straight pipe sounds good... not much of a difference over 4", other than price and just to say you have it. If you want stacks, that's just your preference. I agree, keep the muffler and cat off of it. Let that thing breathe.
Here's my buddies 05 on the dyno, running an SCT with canned race tune, 5" straight pipe, stock airbox.
This was the loudest truck of the day IMO on the dyno. Granted it's inside a garage, but it's still loud. Stacks are quieter actually, but have a deeper tone. Stacks are louder INSIDE the cab though, they can get obnoxious if you tow anything.
Here is my other buddies 06, EGR delete, SCT innovative extreme street, Innovative tuned FICM, and 4" into 6" mitre stacks, straight piped....
Here's my buddies 05 on the dyno, running an SCT with canned race tune, 5" straight pipe, stock airbox.
This was the loudest truck of the day IMO on the dyno. Granted it's inside a garage, but it's still loud. Stacks are quieter actually, but have a deeper tone. Stacks are louder INSIDE the cab though, they can get obnoxious if you tow anything.
Here is my other buddies 06, EGR delete, SCT innovative extreme street, Innovative tuned FICM, and 4" into 6" mitre stacks, straight piped....



