If you want loud then just take of your muffler :lol: but thats if you would have the money to fix your truck a little later lol. I have the jba,sounds nice and a few months after I had it, it got louder, I think its louder than my flowmaster 40series muffler I used to haveDRKSDE said:I too have read that JBA offers the most power gains but I have yet to see any actual dyno #'s. Their website claims 23 hp but that's with headers so it's obviously less with just the Cat-Back system. I do know they don't hold a candle to Flowmaster or Mac systems for my Mustang & I have dyno #'s to prove it. Most systems I've researched are all within a few hp of each other though I've not seen any #'s on the Flows.
I'm going with the Stillen system as I'm really not into loud; kinda like the sleeper effect.