does an after market catalytic converter give more hp or high flow. or it dont really matter.

thx

 

just hallow your stock one out .its about the same thing.

 

might lose a little torque, but a little more topend. Wont make too much difference on a stock motor.

 

doesn't matter

 

so putting in a after market catalytic wont help.....
so should i just use the stock one..

thx

 

cat wont do anything. if it's the only thing u wanna get, dont.

if ur getting exhaust and can spend the extra money on the cat, then get it. it wont hurt, especially if u mod the engine later on. that's when it'll really do anything.