does removing the catalytic converter add HP? Options

[nate95]

Hey i was just wondering if i were to remove the catalytic converter if it would add any horse power? or what about getting a "Y" pipe before the cat. so i can still have the cat. but have it go straight out when i want to race?

[Vacchus]

This was the first thing that i did to my car, and i can tell you for sure that it is the easyest way to get +5 to 10 hp without any money.. You will only need to make a tube to replace it or you can make a fake catalytic converter for the case that the police look under your car. That worked for me!!
The only problem is with the inspection of gas, but you can always put the cat back in order to pass the test, and remove it again. If you are unlucky enough and when they stop you, the have a portable gas meter, then you have a big problem... So the best you can do is make a fake converter and claim that it propably dont work.. Maybe you will leave without a penalty!!