TTI exhaust, is it worth it??

I have TTI's also as they were the only ones that would fit in my car that didn't go under the steering drag link on the driver's side.

That's not correct. Dougs don't drop under the center link at all.

They also fit the 73+ A body cars with spool mounts and 727's. Why the catalog says they don't fit those years and with that trans is beyond me.