Debating Magnaflow vs. TTI 2.5" X-pipe exhaust system for 71 Challenger. Have heard lots of good things on board about TTI but not much on the Magnaflow system which is about $100 less and is stainless vs. aluminized on the TTI. Does anyone have experience with both on an e-body and can comment on fit/performance/durability/sound between the two?

The car is 400Hp driven mostly street so I don't want to draw cops from 6 blocks away when I ease away from a stoplight.

Thanks in advance for any help.