Looking at a 2008 Procharged GT, what do I need to pay attention to?

[1950StangJump$]

Well, it would be logical to assume there is more risk with cats than without. But, the manufacturers have managed to boost engines for decades and keep risk at acceptable levels.

And, why would you state "Boosted 3 valves and cats usually dont play well together?" Tell me how the 4.6s somehow melt cats more than any other boosted platform, so that I know you aren't "assuming shit."

 

[eighty6gt]

OEM cats are fine

aftermarket absolute junk, maybe kooks greentech work you'd have to ask the college kid who spent $19k on Tiger's $250,000 build. Only $300 bi weekly!

 

[JEWC_Motorsports]

Dino is really into Catalytic converters for some reason.
Metal...

There was also a pic around here a couple years back from someone who was able to pull about a foot of unwrapped metallic cat from their pipes. It unwound and bunched up almost killing the engine.

This is a prime example of what happens. Manufacturers arent tuning for power increases. Timing is usually on the low end of safe. Thats why you can still tune a factory boosted car.

 

[01yellerCobra]

This is a prime example of what happens. Manufacturers arent tuning for power increases. Timing is usually on the low end of safe. Thats why you can still tune a factory boosted car.

I also think a lot of tuners turn off all the protections. IIRC BruceH ran cats on his set ups with no issue. And he left all of the protections in place.

 

[JEWC_Motorsports]

Bruce also tuned his own car. Most email tuners arent going to put the time he did into his car.