Just wondering how much it change the exhaust tone and the performance gain. Catbacks cost too much $$$ I just can't see myself getting one. HFC on the other hand cost about half of the money and it replaces the most restrictive part of the car.

 

Raspy on the sedan.

 

I was thinking along the same lines as the OP.....

What about changing out to a better flowing Y-pipe? Any benefit?

 

You will end up replacing the whole thing, if you just start in pieces. Just save up and get a whole system.

 

Saltfish has HFC's on a stock exhaust........sounds good

 

Had the ERZ HFCs on my stock sedan exhaust. Thought the rasp would go away before I got my FI CBE, but it never did. But it's totally gone now...

 

ypipe is already a free flowing. The whole exhaust is already free flowing. Exhaust should be a last mod for the G, or unless you just want sound first...


just get HFC and Tanabe mufflers.

 

I heard it really a waste of money to replace the exhaust on a G because there is really no system that will give more power than stock< so if your getting exhaust it's basically for sound

 

I recently replaced the cats with berks hfc (still have stock exhaust for now) and I must say hands down best bang for the buck, makes the muted stock sedan exhaust really come alive like the Z's and G coupes maybe a tad deeper but same tone...Sound great and I really pleased with it...performance wise it does feel a bit more peppier and free flowing through all rpm ranges but the sound really did it for me. Now I can wait a lil longer till my exhaust (Invidia for AWD's) is made. I actually have sound clips before and after and if someone could help how to upload'em i post'em (files are pretty big - hd video)

 

Cool, any noticeable rasp in the sound? Any issue with the check engine light? I am looking into Berks and FI HFC right now.

You can upload the vid to youtube or vimeo.

 

you know what i never really heard the rasp..at all like some mention nor and get any CEL (berks are good like that) however i do have that hiss that all seem to have after reving, its not really noticable...and I did have some annoying exhaust vibrating/grindy type of sound for the 1st week I thought it was because i didnt have the gaskets on there. Berks apparently forgot to send'em to me and I couldnt wait so I got them hooked up anyways. They are on now but still have some of that vibrating(like 2 thin pieces of metal vibrating against each other) sound only around shift points but it seems to be quieting down a bit...idk but i think it from the stock exhaust cuz i used to hear it but in a more muted fashion when it was stock new as well...ill see when I get my exhaust.

Ill try to work on getting those vids up

 

ok got that video of the before and after hfc's with stock exhaust upload...

<object width="400" height="300"><param name="allowfullscreen" value="true" /><param name="allowscriptaccess" value="always" /><param name="movie" value="http://vimeo.com/moogaloop.swf?clip_id=13640292&amp;server=vimeo.co m&amp;show_title=1&amp;show_byline=1&amp;show_port rait=0&amp;color=&amp;fullscreen=1" /><embed src="http://vimeo.com/moogaloop.swf?clip_id=13640292&amp;server=vimeo.co m&amp;show_title=1&amp;show_byline=1&amp;show_port rait=0&amp;color=&amp;fullscreen=1" type="application/x-shockwave-flash" allowfullscreen="true" allowscriptaccess="always" width="400" height="300"></embed></object><p><a href="http://vimeo.com/13640292">G37 sedan before/after Berk HFC's</a> from <a href="http://vimeo.com/user4351929">Adihere</a> on <a href="http://vimeo.com">Vimeo</a>.</p>

 

wow big difference........nice difference at that

 

yea bro you gotta get'em, you'll luv the sound of your coupe so much better

 

that's the nature of hfc's - they almost all have some sort of hiss.