Okay as the title stated which one loses more power?

t1r 70r with t1r testpipe and silencer on?

or

t1r 70r with stock cat and silencer off? Will it sound any differnt?


I'm asking this question is because with the silencer on it makes a raspy noise and I don't like it so i need some feedback. Thanks.

 

And while we're on the subject, do the T1r's really make as much hp as stated (12hp and 15hp for the 63 and 70, respectively)? That just seems like a lot for our car to gain on an exhaust.

Just wondering.

 

^^^ t1r is supposed to have some of the best hp gains... Man I want the exhaust so bad, but it's getting so popular