The video in question, they lost 20hp, gained nothing below 3200rpm. That's with a 600hp engine. Then they slanted their comments toward the larger system. I think it was a biased opinion because the sound of the larger system played into what they liked.
R.
Sure it was biased.. and they did a complete 2 1/2
vs 3" system... the OP already stated everything from
the muffs forward is staying... he wants tail pipes ONLY
and if you looked at the Pontiac data it showed just tail
pipes then muffs vs noise and hp... if I was the OP I would
put dumps on it also... on my Rampage I built the headers
to match the engine but went with a less noisey muffs and
it was still to loud.. I added resonators and elec dumps
and I see a big difference when the dumps are open(the
resonators are straight thro... they only dropped the DB
6 DB.. I was hoping for more... right now its 92DB
