ljdsong

iTrader: (1)

Im going to upgrade my headers in i few days, i would like to elicit any inputs from the community which route im going go, GESI or Magnaflow? Im thinking also to get the SC in the near future.

leo

MileHIFcar

I'm probably going to go with GESI even though they are more expensive. From the research I've done they lose less than 1% from what they claim with their proprietary metal stainless steel honeycomb structure.

Here is the cheapest I've found it so far: https://www.amazon.com/Vibrant-Perfo...ytic+converter

Here is the info from the site: http://vibrantperformance.com/catalo...oducts_id=2070

tas02

iTrader: (2)

Whichever cat you decide to go with, I'd recommend stepping up to a 3" system for a supercharged application.

MileHIFcar

That's a good suggestion, then you wouldn't have to worry about getting a bigger Inlet/Outlet for a S/C application on the cat

Leander311

iTrader: (2)

Any other thoughts on this? New to the IS-F community here... I've hardly had her a week, and already on the way are the Borla exhaust, aFe filter, HPS intake tube, and a pair of Magnaflow 2.5" in/out catalysts, model #53956... I don't see a lot of hard specs on the cats like cell density or flow data, but they're far cheaper than the Gesi/Vibrant units. I know you're usually paying mostly for the precious metals that do the real magic with a more expensive catalyst, but I simply want to pass inspection (they sniff in Austin, TX) and have marginal power loss if I gut the cats in my OEM headers. Would something like this with a metal core flow better?
Thanks!
Nick

Max16

Magnaflow are ceramics cats. Good for a daily driver that doesn't get a lot of abuse. Ceramics don't hold well to abuse or heat cycles (splash of water for example).
Go with a metallic structure if you want peace of mind.

Vervish

iTrader: (4)

I just ordered a set of magnaflow cats - my shop is suggesting I have them clamped on (instead of welding). Any thoughts?

flowrider

iTrader: (9)

^^^^Mine are welded on, No issues for me. The only reason, I can see, for clamping the on is if you want to remove them at a race track and replace them with a test pipe.

Lou

mahcah

iTrader: (3)

Texas sniffs? I last I checked, all ISFs are hooked up to the OBD II ports for the state insapection - if you are referring to that.

FilwithanF

iTrader: (1)

Sorry I'm a bit late to the thread, but I i would not even bother with Magnaflow cats. I had them om my PPE dual mode and they rattled loose fairly quickly and almost lodged in my exhaust. I then bought GESI cats and put them through some very rigorous driving with no issues at all, thankfully. My advice, pay the money for quality and peace of mind. Otherwise, you'll probably end up paying twice lol.

ljdsong

iTrader: (1)

Since i installed my supercharger this vibrant hesi cats has no problems. Feels power are flowing smoothly.

clarionguy

ljdsong

iTrader: (1)

For those who havent seen my post before. Heres mine.

clarionguy

Has the fuel smell disappeared for you?
In my respect with no cats it is impossible to drive with the windows down to not have your clothes smell.
After I put them on, at idle it is not noticeable but with decent or wot there is a chance I smell it. Seems like it depends on how the turbulence or wind is blowing.

ForzaF

iTrader: (3)

I read this interesting article few days ago when i was trying to find some stuff on gesi/vibrant cats. They also have a youtube channel
http://speed.academy/how-catalytic-converters-work/