Lookin for help. Been trying to decide on a exhaust that sounds deep but not too loud and it's pretty much come down to Fujitsubo Legalis-R and Injen SES. Tried doing a search but it way too scattered... Let me know what you guys think... Thanks

 

I have had the Fuji now for almost a year. I chose it for the same reasons you are stating. My research on this board determined the Injen was much louder and since the Z is my daily driver and knowing myself, I decided the Fuji was a better choice. It has a nice deep rumble during acceleration but is very stable and mellow during idle and cruising. Even at steady 80MPH cruising there is no drone. It is also boasts a very high build quality. The tips are initially a little large, but after a little staring they suddenly look just right.

Good Luck

 

How much louder did it get with the Helix cats?

 

The helix cats have made it louder but in a more boomy way, if that makes sense. It is still quiet at idle and 80MPH cruising the sound levels are slightly more apparent but not to the point of unbearable droning. I will say that the rumble prior to the helix cats was more pleasant since in was more rumble than the more echoy/boomy nature it now has.

There is just no way to predict how an exhaust component combo is going to sound till you try it. Maybe the headers will change it back to more rumble than boom.

 

I have fujitsubo too, and it's one of the quietest exhaust in the market. I chose it over other due to the build quality. Before I bought this exhaust, I actually saw all other exhausts on the market at the time in person, and make sure it has best build quality, which it did. And just FYI. Fujitsubo is one of the largest and top exhaust manufactures from Japan. Fuji's exhaust has been use in numerous races, including duration race and rally. It's a very prestige brand in Japan Auto Industry. I won't buy something that's less. HKS will be another great pick too.