240Zrearquarter

About the exhaust, I thought doing rhe very same thing on my Z fr the same reason, how does it actually sound? Cause thats alway important to me.

It's a straight through, perforated core, muffler.  I also have a resonator midway through the exhaust system, which has removed any drone issues.  It's a very throaty sound, with some rasp in the higher RPM range, quite a few people have gone out of their way to tell me they love how it sounds.  

There is a video on youtube of just after I had it all installed.  The carbs weren't terribly well tuned at that time though, and I didn't do a very good job of specifically revving the engine to show how it sounds, but you will get the idea...