i have a single straight pipe from the cat back..you cant remove or hollow out the cat because of the o2 sensors....i just cut my muffler off and had a pipe put in its place and had a 4" stainless steel tip put on the end....i love the deep sound i think it sounds really good and its the cheapest way to go

 

Actually, you can remove it and buy an O2 Sensor plugs that trick the truck into thinking the sensor is there

 

What is a good site to order a flowmaster exhaust from, or a place near melbourne fl.

*MERGING WITH YOUR ORIGINAL THREAD CONCERNING EXHAUST QUESTIONS*
rriddle3

 

Try flowmastermufflers.com and use their dealer locater link.

 

flowmastermufflers.com, ebay, or most local shops can order them also.