I was wondering how do i make the stock exhaust louder without any rasp? do i get the HFC from fast intentions? i like the sound of the exhaust but i just want it louder. What should i be looking at to make the exhaust louder but no rasp please. Do you lose any pwoer by adding a HFC?Thanks

 

intrested too..what is hfc

 

HFC=High Flow Cats


i think the best way to go is FI HFC, look up SHANESG
he has FI HFC on his oem exhaust

 

F.I. HFC's and an HR Y-pipe.

I had used to have both when I had my stock exhaust. Better sound and better performance.

 

Does the exhaust have any extra resonators on it? I have not taken a look under a g35 coupe yet but if it has extra resonators (mufflers) take one out lol.

I did that on a BMW I had with an awesome result!!

Anyone have a pic of the underbelly?

 

^^^has one in the midpipe. you'll get some rasp if you remove it. i don't recommend doing so.

 

Anyone do this here I would love to hear it

 

youtube

 

 

I don't mind a rasp its how race cars sound :P

PS: sorry to hijack your thread man.

 

My friend did it and it sounded like s**t and he dident gain anything from it. There was no point in it at all.

 

ours cars aren't race cars

 

They arn't V8's either LOL

PPG thanks for the info!! I will do a search for straight pipes...

 

any sound clips with FI HFC and stock exhaust? And does it decrease your performance?

 

Shane has TP's on his stock exhaust.

How do I know? I have his HFC's.


Shane posted up a vid of his stock exhaust with FI HFC's. From the video, you can't really tell the difference.

I have FI HFC's with my stock exhaust; it's definitely louder. Maybe a tiny tiny bit of rasp (more so when the engine's cold). I love it, though; I feel no decrease in performance, but rather my butt-dyno feels an increase.


That is, until I get a real aftermarket exhaust.