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      01-14-2019, 01:35 PM   #1
UAEX6M
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Should I get a Fi catback?

Hello everyone,

Ive been looking through this amazing forum for a while now and this would be my 1st post.

I own an F86 X6M With no modifications at all, but I wonder if I install the Fi catback would it sound alot louder? Will be it very noticeable?

I did hear the Akraprovic but thats not what i want it sounds so close to stock.

And regarding downpipes im not interested in going to the tune field for the moment.

Can anyone advise? Is it worth the money of the Fi catback?
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      01-14-2019, 04:45 PM   #2
ericliuhc
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FI without downpipe sounds close to stock too .
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      01-15-2019, 12:04 AM   #3
Ehloo
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Completely disagree with this comment. Fi sounds like nothing else on the market. I have the system but with high flow
Downpipe’s. I had a different system on the car and didn’t think it would change the tone that much. I was wrong. Stock cats wil tone the system down but you will hear an unique tone difference. One of the major reasons is that the Fi uses a x-pipe which the s63tu engine really needed. The m5 had one stock

Happy with everything about the system but don’t like their valve system
Not using oem
Valves

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Originally Posted by ericliuhc View Post
FI without downpipe sounds close to stock too .
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      01-15-2019, 01:29 AM   #4
UAEX6M
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Quote:
Originally Posted by Ehloo View Post
Completely disagree with this comment. Fi sounds like nothing else on the market. I have the system but with high flow
Downpipe’s. I had a different system on the car and didn’t think it would change the tone that much. I was wrong. Stock cats wil tone the system down but you will hear an unique tone difference. One of the major reasons is that the Fi uses a x-pipe which the s63tu engine really needed. The m5 had one stock

Happy with everything about the system but don’t like their valve system
Not using oem
Valves

Quote:
Originally Posted by ericliuhc View Post
FI without downpipe sounds close to stock too .
Yah Fi full exhaust sounds amazing... changing the downpipe with no tune will just keep me on check engine 😂
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      01-15-2019, 12:04 PM   #5
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My FI with stock DP sound like shit
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