It's legit for the non-EPA approved model. They offer both 2.5" and 3" options in that style too.

 

Any physical difference between epa and non epa?

 

Not sure if there is any difference other than one has markings indicating it is EPA approved which will get you past smog in any state except California. No stamp might be a problem if they do a physical inspection. Or it might never be a problem. Hard to say.

 

and i just snorted of laughter...

 

Legit YES, but ....

These are different model number #10030 (3 inch inlet) ... #10025 (2.5 inch inlet)
- I believe you are looking for the HO (high output) version. (SKU number starting with 500xx)

 

For those running the Gesi cats did you notice your exhaust being more quiet? By your estimate how much more quieter?

 

^^^^When I switched to the GESI from the crap Magnaflows I did not not notice a change in the sound.

Lou

 

Make sense with the Gesi being high flow.

 

I had ppe headers and Joez exhaust with no cats.
When I installed the gesi there was a change in sound.
Took away some rasp.
​

 

We now carry and recommend Gtech GESI cats... Vibrant no longer sells GESI.

The High Output GESI Cats are designed to handle up to 500hp/bank whereas the Ultra High Output are rated at 850hp/bank. They also have a proprietary wash coat of precious metals to give you little to no exhaust/raw gas smell.

https://www.rr-racing.com/Lexus-GESI...isfexcat05.htm