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Fujitsubo Authorize RM Cat Back
Subaru STI 2015+
Features & Product Details
Get a proper dose of JDM Goodness with a quality Fujitsubo Exhaust System brought to you by RallySport Direct.
Fujitsubo engineers and designs quality exhaust systems designed to improve the power and performance of your vehicle by replacing your factory equipped exhaust with a high-performance unit that features smooth bends and increased piping diameter. These features limit the restriction of the factory exhaust system to provide an aggressive exhaust note throughout the entire RPM band.
Here are more details:
Specifications
Brand:
Fujitsubo
Exhaust Orientation:
Straight Exit
Installation Hardware Included:
Yes
Piping Coating:
No
Piping Flex Joint:
No
Piping ID:
70mm
Piping Material:
Stainless Steel
Silencer Included:
No
Tip Material:
Stainless Steel
Tip Qty:
1
Tip Shape:
Round
Tip Size:
99mm
Mfgr. Warranty:
3 Years
Condition:
New Product
Return Policy:
Standard
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REVIEWS & CUSTOMER MEDIA
Customer Photos and Videos



1 of 1 people found the following review helpful
5out of
5stars
Bryant
I've been running with this exhaust for almost a year now. If i am honest, there are moments where I wish it were ever so slightly louder, but i know that i will most likely regret a decision to switch it out for a Tomei (even though they sound amazing). Its a perfect gentlemen's exhaust. Noticeable enough of a difference compared to stock.
4out of
5stars
LK
Great quality, price and sound. No adapter needed when fitting to stock down pipe. Very reasonable sound levels with a nice rumble and no drone. Gets slightly louder as it breaks in so don’t be too worried when you start it up and it sounds mostly like stock!
2 of 2 people found the following review helpful
5out of
5stars
Dhero69
I’ve installed this on my 2021 WRX and at first it was so quiet more so than stock and now that having it on for about a month is sounds so good just the right deep tone compared to how most single exits sound. I definitely feel a small power difference. Hands down 10/10!
1 of 1 people found the following review helpful
5out of
5stars
Bad_Rattle
Fantastic quality with perfect fit and finish. It’s got a great sound that is not too loud.
QUESTIONS & ANSWERS
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Q: downpipe adapter? Matt3 years ago
What is the connection size to the downpipe? is the grimmspeed adapter needed?
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1 of
1 people found the
following answer helpful
A: It is a 2.5" flange, it will bolt to your OE downpipe.
Lane H. @ RallySport Direct 2 years ago
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1 of
1 people found the
following answer helpful