3.4 v6 with no cats and a flowmaster muffler and tip. is there anything i can do to stop the exhaust popping? it only pops like that in park or neutral. wouldn't mind it sounding smoother.

 

Install a high flow cat, they do wonders to stop the popping sound.

 

Installing a cat was going to be what I would recommend.

 

Oh, and that sound is a "rap" not a "pop."
I'll overlook it this time!

 

How much would a high flow cat cost to get buy then taken somewhere to put on?

 

I got mine off of ebay and I belive I paid about 100$ for (2) magnaflow Hi-flow cats and MY local shop installed them for about 100 bucks, I also purchased 2 Aero Turbine stainless steel mufflers( AT3030) and they have yet to be installed! IM ITCHIN!!! I cant wait to get rid of these D@^# Dronemaster!!!

 

ebay, quick and dirty

 

Also do a tune-up, and clean your fuel-system with some fuel system cleaner for a few tanks... An intermittent/failing injector could also contribute to the popping

 

I bout my cat and had it installed at a regular shop for 120, most shops will weld it on for cheap. or you can practice your welding skills then do it urself. but its up to you.