pearlpower

Ditto, curious as well. Many stories of high flow cats blowing out, curious how these hold up over time, thanks for posting.

Johncy2000

You guys are getting me paranoid about my car now. haha I might buy a spare set of race cats just in case.

guysandiego

Not trying to make you paranoid but now you know -- Do a search -- I think your idea is great and I would like to follow -- just dont want to waste $$$ on cats that may break apart --- parts and labor to replace them again -- no fun !!!

Johncy2000

I just read about the thunderbolt race cats holding up for 3 years on modded mustangs.

pearlpower

Good info, might look into those myself. Plan on a 185mm upgrade, these, fuel rail, and final tune and call it a day.

jmb614

I would do the bigger injectors as well if you haven't already. Just my two pennies.

novae500

on my other car, i bought some race cats from autopartswarehouse and after 3 yrs the insides are rattling and getting a CEL code now

Johncy2000

All I can say is that these cats are what won me the race against the 476whp cobra. It really made that big of a difference. Car is so much faster and louder now.