Ok lightning friends your input is requested here several of our lightning friends have built motors. And ask questions i cannot not answer on my own.How important is the two cat mid pipe system some are still running all four factory cats some have the bassani cat back system i myself know they are some restriction on factory cats how much i don't know thats where this board is important to the lightning community they who have ask these questions will tune in and listen. thanks friends TOM

 

I have tried
LT's, HF Cat's, and STOCK Cat Back


I have tried
LT's, HF Cat's, and a Flowmaster American Thunder Single Muffler Cat Back


And I currently have
LT's, HF Cat's, X Pipe, and a Bassani Stainless Steel Double Muffler Cat Back


There was NO Dyno Gain when we went from the Stock to the American Thunder.
There was NO Dyno Gain when we went from the Amer Thunder to the Bassani.
BUT I do love the way the Bassani sounds
(my overall set up is waaaay too loud, but the sound is grrrrrrrrrrrrreat)