My 89 V6 4Runner finally died after 250K miles. I bought it new in the fall of 1988. So just got my 04 V8 Sport and found this forum. Anyway, I too think the stock exhaust is too quiet as many have stated. But the Borla sounds too loud. How about the TRD cat back? Is it quieter than the Borla? According to Toyota they are NOT made by Borla. Has anyone compared the two? Is there any exhaust system that growls at idle and off the line but is fairly silent at freeway speeds? Thanks for any help for a forum newbie.