Wow....I dont know if I really want to do all that right now. Are the high flow cats and a K & N air intake system worth the price, and will they give me an imporvement on my sound for the system I already have.

 

These mods aren't going to add bags of HP, so don't expect alot. The intake will give you a little more sound. The high flow cats aren't worth the expense for what you have right now. High flow cats would be near last on my list, or installed during exhaust work.

The SIDO flowmaster muffler is no good for you if you want true duals. Sell it on ebay and but two used 40 series SISO's. Take that to a muffler shop and get a few quotes. You'll find that prices vary based on the mood of the guy quoting the job.

 

I have had the flowmaster exhaust system for about 3 weeks and I really dont want to strip it off and sell it and then get a whole new exhaust done on the truck. Is there any way to make it any louder without having to switch to true duals??