I have a 40 series flowmaster si/do. Im lookin for something louder that is si/so. Ive looked at slp loudmouth but videos ive listened to do not sound any louder than what I have now. Any ideas?

 

why would you want loud exhaust in a stock truck?? JUst get some cutouts if you want to be loud.

 

I don't know why you want it any louder, but straight pipes, no cats and long-tubes is about as loud as you can get. If it's not a street vehicle you can get some old school zoomies.

 

Run open Y pipe. Ive been doing it for a year with my pacesetters w/no cats. Its very loud outside, inside i can talk on the phone or jam the radio with no issues.

 

^ plus a dump under the bed just by the rear axle. Don't forget to get the cats tuned out. And if you want louder, get a remote cut out. I have on from DMH Performance.

 

My dump is under the front passanger seat

 

Ha ha. Is that entertainment for whom ever sits in the passenger seat?
And can you hear yourself think?

 

I have lt's and dual dynomax bullets and dumped at the axle. And my setup is almost asloud as my buddies cutout. So I say that's pretty loud being a near full exhuast! Or check out spintech super pro street mufflers they are loud as hell aswell

 

Long tubes, no resonators, no cats and a cut-out FTW!

 

If you don't want to do a cut out and just stick to a si/so, go with the Dynomax Bullit. I have one on my 09 with stock manifolds, stock cats, and a 3.5" tip and it sounds mean. Nice deap rumble without too much rasp. It reall gets loud at WOT. It will sound way better than that flowmaster you have