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Old 11-15-2016, 02:02 AM   #1
Stang70Fastback
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Fujitsubo Authorize R Catback: Short Review, Pictures, Videos

Hello everyone. I recently installed a Fujitsubo Authorize R catback exhaust on my BRZ and thought I would share my short blog post about it with you guys.



Fujitsubo Authorize R Catback

Well I’ve finally gotten around to it. I know, I know, it’s long overdue. A new exhaust seems to be pretty much the first thing that everyone does these days, but autocross necessitated some other modifications first. Also, to be perfectly honest, I was a bit hesitant. I feel like the odd-one-out in the car scene, because unlike most folks, I don’t want a super loud exhaust on my car. If it was a weekend/track car, that would be one thing, but this is my daily driver, and I put almost 20,000 miles on it a year, so I still want it to be tolerable around town, and not annoying on long road trips. My criteria were as follows:
  • No tinny, raspy, metallic “fartcan” sound (AKA Honda Civic w/ AutoZone muffler.)
  • Quiet at idle (I don’t want my car vibrating people’s skulls when it’s just sitting around.)
  • No drone at ANY speed.
  • More low frequency sound, as the current exhaust lacks any sort of deep sound.
  • Ideally relatively quiet when tooling around, and louder but not in-your-face when accelerating.

With those being my criteria, and also trying to keep with the theme of the car of being a bit “different,” I started looking at some possible systems. I more-or-less dismissed systems such as the Invidia N1/Q300, HKS Legamax, etc… simply because everyone and their mother runs them. I then discovered Dezod Motorsports, and found their exhaust to be quite interesting, but it seemed as though it might be a bit loud for my tastes (I’d heard that with headers – an eventual modification I want to do – it could become particularly loud.)

In any event, I was eventually made aware of Fujitsubo… a company I admittedly hadn’t even heard of. I had to do some research but the only feedback I found was things like, “they’re one of the best exhausts you can buy,” and raving about the build quality, sound quality, etc… Also, many Fujitsubo exhausts are JASMA approved (Japan Automotive Sports Muffler Association). That means they have to meet some noise regulations (94-98 dB or such – there were some discrepancies on various forums.) All things considered, this sounded like the best bet to meet all of my requirements, so I went ahead and purchased the Fujitsubo Authorize R catback system.

Before I go any further, let’s quantify the things that people will want quantified. These numbers are not from any tests I have done, but straight from Fujitsubo’s site, so keep that in mind (for example, I’m not sure where they got 98 dB from, since it doesn’t sound anywhere near that loud…)

Performance
HP: 174.1 @ 6580 RPM -> 177.6 @ 6520 RPM (+3.5)
TQ: 144.0 @ 6190 RPM -> 146.3 @ 6110 RPM (+2.3)
Weight: 41.0 LB -> 33.7 lb (-7.3)

Sound
Idle: 61 dB -> 65 dB
3000 RPM: 73 dB -> 81 dB
5000 RPM: 80 dB -> 84 dB
Max: 87 dB -> 98 dB

So, this isn’t going to uncork a TON of power on its own (though it will allow the car to breathe better with other power mods down the road). It also appears to perfectly meet my noise criteria as well: not much louder at idle, but still willing to make some noise when you get on it!

Arrival

The exhaust arrived well-packaged in a rather large, and fairly sturdy box plastered with “FRAGILE!” stickers for good measure. The mid-pipe, y-pipe, and axle-back were wrapped in plastic, and everything was cushioned in expanding foam blocks. The hardware came shrink-wrapped on cardboard (nicely organized, though a bit of a pain-in-the-butt to unwrap.)

...

[Read the rest of the blog post here]

Last edited by Stang70Fastback; 10-17-2017 at 02:29 PM.
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Old 11-15-2016, 02:14 AM   #2
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A nice streetable tame exhaust. They clearly did their homework with that extra piping and dual "mini resonator" config they decided on.

Nice write up and photos, we can tell you had a good time installing it!
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Old 11-15-2016, 02:53 AM   #3
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Nice write up. I was debating between this and the Tanabe Medalion Touring but ultimately went with the Tanabe.
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Old 11-15-2016, 03:43 AM   #4
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Honestly I have the same interests of an exhaust as you do.
Did you run into any other alternatives?
I do like this exhaust but I'm not in any rush just yet
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Old 11-15-2016, 03:40 PM   #5
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Honestly I have the same interests of an exhaust as you do.
Did you run into any other alternatives?
I do like this exhaust but I'm not in any rush just yet
I didn't find many others. Everything seems to be all about noise these days. I really like the sound the Dezod makes in many videos, but it does sound like it would be louder both inside and out. Also I'd heard it can get very loud with some headers (though in fairness, the same might happen with the Fujitsubo exhaust when I eventually do that...)
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Old 11-15-2016, 03:47 PM   #6
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Originally Posted by Stang70Fastback View Post
I didn't find many others. Everything seems to be all about noise these days. I really like the sound the Dezod makes in many videos, but it does sound like it would be louder both inside and out. Also I'd heard it can get very loud with some headers (though in fairness, the same might happen with the Fujitsubo exhaust when I eventually do that...)
BUY MY HEADER!!!
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Old 11-15-2016, 03:48 PM   #7
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Is the piping lower than stock? I speculate if this catback is compatible with Velox diffuser.
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Old 11-15-2016, 04:24 PM   #8
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Is the piping lower than stock? I speculate if this catback is compatible with Velox diffuser.
I wish I could tell you but I'm honestly not sure. I think it is lower, though, because it has pipes coming from both sides leading to the mid-pipe, so I think it has to dip down a bit more.
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Old 11-15-2016, 06:56 PM   #9
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BUY MY HEADER!!!
You heard the man, @Stang70Fastback. Buy his header!
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Old 11-17-2016, 11:19 PM   #10
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I use that catback for near 2 years. I love it. you can check my garage ...
I took the Fujitsubo manifold "Super EX" too.
All the welds are well made.

But my manifold died 3 month after I installed my supercharger HKSv2 : catalyser unplugged. And Fujitsubo refused to support me because it already 13 month year old... :'-(
So be prepared to have 12 month warranty... nothing more.

Oh ! I had to replace my catback seals. Buy it now because I waited 1 month for mine.
That ones http://www.seriesblueadventures.com/...4-1200x675.jpg
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Old 11-18-2016, 11:48 AM   #11
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I use that catback for near 2 years. I love it. you can check my garage ...
I took the Fujitsubo manifold "Super EX" too.
All the welds are well made.

But my manifold died 3 month after I installed my supercharger HKSv2 : catalyser unplugged. And Fujitsubo refused to support me because it already 13 month year old... :'-(
So be prepared to have 12 month warranty... nothing more.

Oh ! I had to replace my catback seals. Buy it now because I waited 1 month for mine.
That ones http://www.seriesblueadventures.com/...4-1200x675.jpg
Any idea what was the cause of the manifold failing?
I plan to buy it also in the future to complement my other Fujitsubo parts.
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Old 12-03-2016, 10:15 PM   #12
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I think my supercharger blows too much for it, maybe too high Temp too (no sensor for that), and maybe because on track blow + high temp = dead.

on atmospheric config no problem ;-)
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