Fast Intentions High Flow Cat Input Needed.
 

Hello All,
After numerous hours of searching, i have a couple questions on the FI HFC. With stock exhuast will the HFC increase in volume? I have seen on you tube the Berk's and ERZ? HFC's with stock exhaust and there is a noticeable difference while driving past 3000 rpms, so i would assume the same results would occur with the FI HFC's? My goal is to increase the volume of that "growl" to be similar of what i had with my stock 350z, if not louder would be better. Also, will i run into any codes or problems with running the FI HFC? Any video clips of a stock 370z with FI HFC's would be greatly appreciated as well as informative answers, thank you.

With a stock exhaust the HFC will make it sound louder and increase your hp. Berk & ERZ HFC are 200 cell count and the FI HFC are 300 cell count which means more restrictive and less loud so they say... but i doubt its a very noticable difference. I have the FI HFC paired with my 18" FI exhaust and can tell you FI makes a quality product. Im doing a little experimenting this week and just ordered a set of GTM res. test pipes. If I like the sound better with those Im planning on selling my FI HFC... Ive put about 1200-1500 miles on them just FYI if youd be interested in buying used. Anyways doubt you could go wrong with Berk, ERZ, or FI. I havent heard anything bad about any of them. And since I've had my FI HFC installed I haven't thrown one CEL. Good luck

Thank you!

Even though I have the Berks, they made the car sound so much better. Under 3,000 rpm, it is almost stock but it opens up after that point. After 5k rpm, the volume level is doubled or even tripled compared to stock and my opinion on high flow cats and the sound they produce is that this should be the way the 370Z sounds stock.

So let me know if you want these,...

Im posting them on CL tonight so first with cash is going to get them,...cleaning out my closet since I dont own a 370z anymore...

still have these? I might be interested depending on the price.

I still have the the cats,..They are brand new and not used so its a little bit of a discount for anyone asking shipped.

I think the local buyer in Hawaii passed on this item and I have to get a shipping quote for another member,..

Cotizi will be number 2 on the list and Im sure shipped price to you will be about the same for the quote Ill be getting today. Will post the shipped price as soon as I get to the post office today.. Price will be posted by tonight..

Thanks for you interest.