was thinking about what to do with my exhaust. i love the stock exhaust i just wish it was louder. i was going to just take out my resinators but than i herd it i wanted to break my computer speakers. to what i have heard on videos the berk hfc's with the stock setup would do the job. However I did want some second opinions. Any thoughts??

 

Here you go

https://www.myg37.com/forums/media-s...-berk-hfc.html

Yes, it sounds great! But an aftermarket exhaust sounds even better...

 

I have stock exhaust and Berk's HFC and I love it, I let my brother drive my car and i rode next to him another and let me tell you, it makes that **** loud, sounds like you have a full exhaust system just from putting in HFC's

 

Thanks guys! great help! btw hi-speed lo drag thanks bro! that video was exactly what i needed!!
Last question! Are the hfcs bolt on or would they require welding?
Ill let u know when I get em

 

Bolt-on but you will have trouble with some of the header-to-cat bolts as they are cross-threaded from the factory. Not an easy DIY at all. Don't be tricked by that Berk HFC install video on YouTube.

 

where would you recommend purchasing berk's hfc?

 

2007+ Infiniti G35s/G37 Berk Technology High Flow Cat Pipes
thats the cheapest cause they ship free but evaisive motorsports has em for the same price excluding shipping and they had really good feedback