So today installed the non resonated test pipes on my Z with the Stock exhaust. Installation was a bitch specially those upper bolts...
After install the butt dyno tells me there is more power and better response which is good but Im really dissappointed with the sound. Its incredibly raspy... so raspy im actually thinking about going back to stock or buying some HFCs
Has anybody had this happen that has my setup? or any other test pipes with stock exhaust?