Nissan 370Z Forum - View Single Post

delusional · 08-01-2011, 10:49 PM

i believe that no matter what test pipe or high flow cat you run, you will get a hiss/whistle at around 3000 rpm. everyone that i've seen with hfc/tp have the hiss. i've gotten used to mine so i dont really mind it anymore

08-01-2011, 10:49 PM	#4 (permalink)
delusional Track Member Join Date: Feb 2011 Location: NewYork Posts: 968 Drives: 09 PG T/S/N 7AT Rep Power: 15	i believe that no matter what test pipe or high flow cat you run, you will get a hiss/whistle at around 3000 rpm. everyone that i've seen with hfc/tp have the hiss. i've gotten used to mine so i dont really mind it anymore __________________ 2009 Platinum Graphite Touring [ Sport Package ¦¦ Navigation ¦¦ 7 Speed Automatic ] [ Berk ¦ H&R ¦ ONEighty ¦ K&N ¦ Stillen ¦ Eibach ¦ Cobb ¦ Ichiba ¦ Hankook ]