Thinking of removing Corsa exhaust and going back to stock 2002 tahoe system because 6.0 Lq4 swap is alot louder than 5.3 was. Sounds like I,m at the track when on it, the new power is great. I,m attracting alot of attention and i,m affraid of police action may be coming soon. Is the factory exhaust system going to be as good as corsa cat back system? Is there any power loss from running factory system. Will the stock system be good with a future comp 224 114lsa cam kit also? some one said factory exhaust flowed very well? but just quiet!