Catalytic Converters & Boost.. Disaster waiting to happen? (Street / Strip )

[15Oxford5oh]

How much track use are you planning? If it's just an occasional test and tune visit, you aren't likely to get in any trouble. The cats aren't going to plug on the first or second run at the drags. Your boost gauge should give you more than fair warning of any plugging. Changing from Flowmaster 40s to Magnaflow dropped my boost pressure 3#. Your cats will be a long way from failure at 3# more boist pressure. For reference I put over 50000 miles on my last Terminator after putting on a Whipple 2.3., which was at 125000 vehicle miles. The boost never budged.

Funny how people's perceptions change over time. You can smell a decatted car several car lengths back. Back in pre cat days (dating myself here) all cars smelled like that and you wouldn't notice.

thanks for the insight, yea I’m definitely getting mixed reviews on keeping the cats vs just getting rid of them. I’ll probably run the car once or twice a month at the local test and tune, maybe 2-3 passes a session.

Sponsored

 

[Kennysum1]

Get rid of the cats if you are going to keep it boosted. Tune will take care of the check engine light due to no cats.

Every tuner I have talked to knows of multiple people who lost entire engines due to cat failure on boosted cars.

Go boost and e85, no cats.

 

[Proshop]

It looks like the rears are on the horizontal right before the 90s going into your x pipe.

Good eye good eye!

 

[slime_bullet]

Is my car the only car that has no smell with no cats? Never have I had to roll up the windows, ever, or even smell the fumes

 

[Zrussian13]

Is my car the only car that has no smell with no cats? Never have I had to roll up the windows, ever, or even smell the fumes

Sometimes my car smells like octane booster if I go a little on the heavy side but not gas fumes. And no cel for that matter either.

 

[carguy231]

I'm one of them [wanting to stay legal that is]. Living in the Royal Kingdom Of Kalifornia, it is becoming increasing tough to get smogged with modifications. Many good smog shops have been shut down for minor infractions so there are lots more un-registered cars here still on the road as a result. Mine is my daily with the '50-state legal EB tune' and I haven't yet gone thru my first smog yet [the car is less than six years old], so I want to see what happens the first time, before I do anything else.

 

[WildHorse]

Little spendy. But worth every nickel:
https://gsportbygesi.com/high-performance-catalytic-converters/g-sport-emissions-systems-products/

 

[Basspro302]

So i just watched a video that kooks green cats are made by gesi?

 

[Jackson1320]

So i just watched a video that kooks green cats are made by gesi?

only factory cats are legal in california or carb states

 

[Jackson1320]

Little spendy. But worth every nickel:
https://gsportbygesi.com/high-performance-catalytic-converters/g-sport-emissions-systems-products/

this would not be legal in california or carb states

 

[Jackson1320]

has to have a C.A.R.B number or a E.O number

 

[Benchmade_user]

I blew my engine the day after I got my supercharger installed because my cats melted. They were bbk high flow cats. I would definitely get rid of them if I were you.

 

[WildHorse]

this would not be legal in california or carb states

Doesn't mean they won't pass emissions test.. cause they will. Companies don't wanna deal with California's bullshit system.

 

[2022 Mach 1]

Doesn't mean they won't pass emissions test.. cause they will. Companies don't wanna deal with California's bullshit system.

You won't pass emissions in california with those cats. OEM needs to be in place or magnaflow is the only company who makes a CARB approved cat. They look for the EO stamped into each cat or you fail the visual.

 

[Jackson1320]

Doesn't mean they won't pass emissions test.. cause they will. Companies don't wanna deal with California's bullshit system.

will not pass in a C.A.R.B state

Sponsored