JROBERGE

Hi everyone. I'm new to both this forum and the G37 coupe world. I purchased my 09' infiniti last week and it currently has a Stillen oil cooler, CBE, and a long tube intake. I've been hearing some annoying rattling underneath my seat. I was hoping it was the heat shield. I took it to the dealer and it turns out the CATS are falling apart internally. Although this sucks, it's a great opportunity to upgrade to some high flow CATS.


Can anyone recommend a good brand? Why?

AzNBoY92

iTrader: (3)

Fast Intentions but of course you need it soon since there's usually a wait time for Fast Intentions products. Berk is next step down.

JROBERGE

Why do you suggest these 2?

kennyz424

iTrader: (147)

Fast Intentions have the best reputation when it comes to quality and sound and each are made to order hence the wait time.

http://www.fastintentions.com/produc...roducts_id/118

http://www.fastintentions.com/produc...roducts_id/115

Berk High Flow Cats:

370Z/G37 High Flow Catalytic Converters - Nissan 370Z/Infiniti G37 - Berk Technology

https://www.myg37.com/forums/g37-cou...fc-review.html

Datsun40

iTrader: (1)

I was stuck between these two for a long time. Heard great things about both of them but after reading the reviews on fast intentions RHFC I chose to go with them. I wanted power, sound, and no lights popping up on my dash. Now I am playing the waiting game.

reNeglect

CEL is because the newer G's came with a more sensitive O2 sensor which i understand is a bit more hassle since you have to find a o2 extender/fouler to prevent CEL.

In terms of quality, BERK's HFC are essentially Magnaflow's 59956 300CELL count cats. So if you really are on a budget and want it quicker. You can purchase a test pipe or resonated test pipe of choice. Order the 59956 off amazon and take it your local show to cut and weld.

Jamsey Aimsey

Hey guy's I'd like to put a set of Fast Intentions RHFC's on my 08 G37 Coupe Automatic but I have an ARK exhaust on it. Can the Fast Intentions RHFC's fit on the ARK nicely?

Or,

Will I need to cut and weld and manually fit them onto the ARK?

Thanks guy's

the93owner

They should bolt right up.

Jamsey Aimsey

Thanks alot for the info my friend.

Nick

Ape Factory

iTrader: (3)

Pro's for the Fast Intentions are build quality, you can get a resonated version, and they'll perform as well as any other high flow cat.

Cons, no brackets on the cats to mount to the OEM cat bracket on the car. You'll experience more vibration at idle and there is a possibility of weld failure, albeit very very slight.

It'll also induce some rasp initially on some cars depending on exhaust (they all do). Mine seemed to have stopped producing much rasp after a few months.

Vizard_87

iTrader: (13)

Fast intentions! no CEL. sound awesome and high quality

micafd3s

iTrader: (2)

z1.......