I have a Perrin 2.5 and I was looking for the same quality is mentioned. From my research I don't believe the Perrin 2.5 is any less restrictive than stock, in fact if I recall correctly they state it has less restriction than stock.

Weight difference is minor.

I'm not as familiar with the HKS but I love the Perrin it looks totally stock, the whole catback feels very high quality with no drone and the perfect sound, at least for me.

Check the following video at 1:15. They weigh the carbon-tip version which is a bit heavier than Ti-tip. They show 22 lbs. I will definitely post my experience
[ame]https://www.youtube.com/watch?v=s1HT-IcSDXA[/ame]

Then why not use Laguna seca's db limit as a measurement and say it's quieter than XX db, even catless and boosted?:iono:

I was 3/4 of the way through a 12 hour night shift and not thinking totally straight lol

This
No muffler or res version.
https://shop.namelessperformance.com...haust-brz-frs/

Damn that is fking awesome thanks so much. I'm not sure why more people don't have that exhaust. I still like my Legamax you can hear the deep sound in the video but I may get the Carbon version and sell which ever one I don't like.

I think when I made my descision last year I wanted the exhaust stock style to fill in the area behind the bumper so I didn't have parachute effect. But the exhaust shield is light only 1lb and easy to make into a cover plate for that area.

I'd recommend the HKS Legamax Sport, but it is roughly the same weight as stock. It does sounds great, with a nice burble, and flows well too. HKS describes it as quiet yet high flow. Though I do like the sound of the Spec-L too.

Thanks! I think Hi-Power Spec-L looks a little too different than stock. That was (and still is) my concern too. I wish there was a plain tip version (not blue or carbon). But it has good flow, good sound, light weight, and hopefully good quality. So, I will give those blue tips a chance. If that annoys too much, I will paint with a heat-resistant spray dark grey color. I will think about a rear diffuser under panel later.

I was referring to something on this post here which just lowers the stock heat shield to block the air from getting up behind the rear bumper. I think anyone going to a cannon style exhaust should be doing this at least. Some of the pics don't work but you should get the idea

http://www.ft86club.com/forums/showthread.php?t=73852

I love my Ace Laguna 90. Maybe even a little quieter than stock but that noise reduction comes not from brute force damping, but rather the higher frequencies are canceled through clever design. It breaths beautifully.

Thanks again! I was thinking about that empty space and this is definitely cheaper than the diffuser solution. That diffuser is $500 :confused0068:

That is a very interesting one for sure. It is not light at 33 lbs ((8.7+2.2+4)/0.454) but sounds very good. I am confused about the flow part of design though. With that much complicated piping, inlets, outlets, and joints, the flow seems to be rather restricted to me.

Actually the opposite, and is what I meant by brute force damping. Instead of shoving the 'signal' through a bunch of screens to create turbulence, it cleverly splits it evenly in sync. Then one side hits the magic can slightly later than the other to focus on canceling the higher frequencies.

Even standing far behind it one can feel more woof than hear bark.

But Laguna 90 muffler cutter is so ugly...

I think it is more of a grown up taste.