sound off for me...

high flows

worth it or not???

think there is really a decent performance gain with them???

what do you think about the sound??? (greddy evo currently installed)
-i've heard sound clips and seen videos but i have never heard one in person-
thats why i am asking my z friends...

if i do it, which i am planning on doing this weekend, i'll post videos for you guys

 

Never heard them in person on a greddy evo. Dynos show that they are great bang for your buck.

 

get them and post sound clips for us 07 owners, i would love to go this route also

 

updates?!

 

Hm...I had a friend with Greddy Evo exhaust with metallic HFC and it sounded nasty to me...in a bad way. I think if you go with ceramic core HFC you should be ok though

 

i have been doing research on different cats and i think i am going to go with the magnaflow ceramic cats...from what i have seen and heard they fit the best and sound the best...hopefully get them done this weekend or next weekend

 

I'd say ceramic with the Greddy evo exhaust. I'm assuming you plan on staying NA for a while, otherwise you would have gone with the Greddy TT. Ceramic is fine for NA.

 

I did Berk Metallic substrate HFC's. I am running a Nismo Catback. The Car just sounds Mean at WOT. Under normal driving it’s just a bit louder.

I got them from Paul at ART.

Metallic substrate:
https://01885bc.netsolstores.com/ind...OD&ProdID=1953

Ceramic:
https://01885bc.netsolstores.com/ind...OD&ProdID=1954

 

Is that right $288 plus S/H for Berk HR ceramic HFC? That sounds way to cheap- Ill call them on monday. Thats less than I spent on 2 pair of jeans a few hours ago.

 

Any CEL from the HFC's yet?

 

Nope. I have over 5000 miles on them too. I used the long bung for the O2.

 

i have the crawford hfc on my 07 and have no regrets.. the best bang for the buck at the moment..

 

I have randon tech cats paired up with Injen True Dual........I would have to agree that at WOT it sounds mean but normal driving just slightly louder.

I alos found that it sounded meaner but didn't notice a lot of performance change.

 

When I add the metallics to the cart, it shows up as 03-06. :S