4AGZE AW11 Exhaust/ Muffler Advise

The Japanese ones are nice and quiet on anything below 3-4k rpm in NA guise, very much a jekyll/hyde thing from what I've heard. A few guys on here could comment on that.
 
Only guys I know that run GZE's are highly tuned and all custom exhausts, but they've said back in the day when they were running nothing more than an overboost pulley, any 2.25" system with hi-flow cat did the job, and muffler size is just to quieten things down.

I'm not to sure what it is? The muffler has exit point on its left and right. The thing is pretty rusted and I cant see any noticeable markings. Its not stock that muffler, I know that much. Ive had the thing for less than a week and the original owner really knew nothing about it.

The system is still using the stock extractors and cat.

Any tips on just a good (not brain melting ) muffler? I was thinking of going back to stock but switching to a hi-flow cat.

Any suggestions forum? Is stock ok?

The Fujitsubo Leagalis R stainless steel model is excellent, and not that loud. I've used one for a few years and have been very happy with it (I don't like overly loud exhausts either, lol). HKS is not bad, but I preferred the sound of their NA model to that of the SC double-can one. Unfortunately, I think HKS may have gone under, at least temporarily, so you'll have to find NOS of their parts if you want anything. I haven't personally heard the SV3 model yet, but an MR2oc member seemed to think it was a bit louder than regular aftermarket ones, and more than they preferred. That being said they look well made, and look to be decently priced. Fujitsubo is probably the best made non-custom one that you can still get though. Even better than the HKS. As an example, the pipe opening on the HKS is significantly smaller than the outlet on the SC catalytic convertor, while the Fujitsubo one is almost the same size, and its pipe is much more smoothly contoured/flared at the opening than the HKS one. Plus the Fujitsubo is SS, so it will last a long, long time, but of course cost you a bit more. I think the cost difference is more than worth it.