Here is what you need and you can see how in and out are located.



I have 40 - series delta flows and 2,5" pipes it sounds like this:
http://s16.photobucket.com/albums/b6...puhuu_xvid.flv

And here is one with 40 - series stainless steel 3" pipes (ok it is my friendĀ“s Vette, but this one is for sounds)
http://www.bowtie-racing.com/videos/bowtieracing.wmv

These are loud pipes bouth, but I like sound and Flowmasters are really heavy duty mufflers.

 

Just go with the Flowmasters... Others may or may not sound good, but you know they will. And even if you don't like it, its just a muffler and really not that big of a deal to swap out.

 

I agree with that, unless you find a sound that you prefer over the flowmasters, you know you like the sound flowmasters give, and you can always change mufflers down the road if you end up hating them.

 

alright! well heres the question i would like for yall to answer. if im sticking with straight duals on the 351 do i go with the flowmaster original 40 series, delta flows, or the normal flowmaster. and i have to stick with the type that the guy pictured above to fit? thats what they look like now. i cant get straight thru mufflers?