Has any one tried HP2 regular kind or shorties i had the 80s series i belive for 91 camaro rs v6 3.1. Will b converting everything to z28 5.7l 350tpi with couple mods. On interior/exterior - motor .. n e who right now still with v6 automatic. .. an i had the loud mouth 1. But was to loud with no cats i bought a cat from eBay an bought loud mouth 2. It sounds better. But on long drives to much drOne ..wanted to know has anybody installed hp2s. On the the 3rd gens ...
(if i dnt respond bk just email me
@ briandelgado456@gmail.com )