Can I run HFC and the stock exhaust, Is it worth it power wise??
And will it rasp?? I know a lot of 350z guys were having issues with rasp.

Thank you

 

There's vids on HFCs on the stock system and I think it sounded pretty good.
I'll see if I can find them... I'll post a link if I do.

 

Here it is...
https://g35driver.com/forums/tech-07...vdo-clips.html

 

Thanx man I like the way it sounds also. Is there a issue with a cel or do these have bungs for the O2 sensors.

 

it's funny you say that about the HFC's because a buddy of mine who owns a e46 m3 took a ride with me the other day after i installed exhaust and HFC's...and he said there is sort of an M3 rasp to it...i didn't know if this was good or bad lol...personally, i don't hear any rasp...sounds like a F1 car after 4500rpms

oh and if the non-foulers are installed right there shouldn't be a CEL light on after you install it...no need to reset battery or anything if installed properly...

 

Ok thanx I'm not sure about the non foulers. I loked at a set of Kintex and I can see bungs for the O2's, but are they to far down for the stock O2's to reach? The non foulers are just plug ins to the stock O2 wires?