I was looking to put a dual rear exit on my truck. I am going to get a Flowmaster 40 Series. What is the difference between the Flowmaster Delta Flow 40 Series and the American Thunder 40 Series. I couldn't tell from there website. Any help would be greatly appreciated.

 

I don't know about Flowmaster but, I just installed a pair of Spintech DI/DO system with an X-pipe, dual right rear exit. The technology is similary to Flowmaster but, better sound and performance.

Checkout their website www.spintechmufflers.com

 

The way I understand it: the delta flow is Flowmaster's newest technology that is supposed to drown-out the interior resonance that their original mufflers are notorious for. The American Thunder is like the classic Flowmaster, meaning it is loud both inside and outside of the vehicle.

Some people love the noise and some people hate it, but it is all up to you.

 

Hey jbless; I dont understand,why you would spend the Bucks for a "Y" pipe when you are using a Di/Do muffler???????? OLDGRAY

 

Hey jbless ; I ment why the "x" pipe . Iam ahunt and pick typer.I may get better some day Ha Ha.. O.G...