Full Replacement Rear Diffuser for Si sedan

Type of exhaust tips and position you prefer?


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integra15

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Nice but IMO it's too many tips (I feel the same about the corvette too). Would love to see a dual tip center option or a whole rear diffuser replacement solution.
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slab42

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Maybe you should try something else that works on your Si bumper like the Thai's did.
https://www.facebook.com/pg/NKgarage-192557327766482/about/?ref=page_internal

View attachment 167790

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I see they have another si sedan on that page with what looks like a carbon version of the sport hatch diffuser. Has anyone tried to put the sport hatch diffuser on an si sedan? I know the bumpers are not identical, and the oem hdmi wouldn't fit, but it looks like it might work, and IMO the sport hatch diffuser frames up a dual outlet exhaust better. It doesn't look like it is hanging there like the hdmi.

From NKgarage:
Honda Civic 10th gen Full Replacement Rear Diffuser for Si sedan lWsMI8lmB-lwgbdZagp-Azagdd0qZ0H4TPDKhTnRfC9gKsRMwn3346aaHaaPk2gmvwe6D_8R&_nc_ht=scontent.fbed1-1

Honda Civic 10th gen Full Replacement Rear Diffuser for Si sedan a-IytiInQT6fdWrUYZLTDuDP2_9kBqUeySLkxGbO4anxLT2GloIe8gf9mQHBSmhSdH5c7vdV&_nc_ht=scontent.fbed1-1


Comparison between sport hatch and si sedan:
Honda Civic 10th gen Full Replacement Rear Diffuser for Si sedan img463940891-1496844750084
 

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Vincent@27WON

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ONEPNT5.Si

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I see they have another si sedan on that page with what looks like a carbon version of the sport hatch diffuser. Has anyone tried to put the sport hatch diffuser on an si sedan? I know the bumpers are not identical, and the oem hdmi wouldn't fit, but it looks like it might work, and IMO the sport hatch diffuser frames up a dual outlet exhaust better. It doesn't look like it is hanging there like the hdmi.

From NKgarage:
lWsMI8lmB-lwgbdZagp-Azagdd0qZ0H4TPDKhTnRfC9gKsRMwn3346aaHaaPk2gmvwe6D_8R&_nc_ht=scontent.fbed1-1.jpg

a-IytiInQT6fdWrUYZLTDuDP2_9kBqUeySLkxGbO4anxLT2GloIe8gf9mQHBSmhSdH5c7vdV&_nc_ht=scontent.fbed1-1.jpg


Comparison between sport hatch and si sedan:
img463940891-1496844750084.jpg
Any info on how this can be purchased?
 

Vincent@27WON

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slab42

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Any info on how this can be purchased?
It appears the only way I see is to message them on fb, but I am hesitant to send money to southeast asia for a product over fb lol It would be cool if someone would import them for sale here or just make them here.
 


Vincent@27WON

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I have the kit in house, just have not had the time to put it on the car yet.
 
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CanadiaegeanBlue

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Hello everyone! I've added two new options, since there have been new exhaust designs on offer after this thread was originally conceived. You are able to reconsider your vote, so please update if there's a choice you would like better :)

Honda Civic 10th gen Full Replacement Rear Diffuser for Si sedan upload_2019-11-7_18-50-19


The Invidia R400 is a Triple Center Exit Tip exhaust available for the Si Coupe and Sedan
Honda Civic 10th gen Full Replacement Rear Diffuser for Si sedan IMG_20191020_112320


Dual Interesting Tip Design would be exhausts like the one by 27won
Honda Civic 10th gen Full Replacement Rear Diffuser for Si sedan IMG-20191019-WA0038
 
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CanadiaegeanBlue

CanadiaegeanBlue

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First pictures I've ever seen online of the Seibon Diffuser installed on the regular 10th Gen sedan, and it looks perfect! When I was in Cali 2 months ago I met with Seibon at their HQ to discuss R&D for a Si option similar to this style with openings for the HDMI, Triple Tip, and 27won Exhaust options. I also requested a shorter opening version that can accommodate up to 4.5" Dual Tips. I will follow up for a response on progress :)

https://seiboncarbon.com/products/t...for-2016-2017-honda-civic-sedan.html?___SID=U

Honda Civic 10th gen Full Replacement Rear Diffuser for Si sedan 80397849_3691047997602823_4121276297403957248_n
 

si_well

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Is it 100% confirmed that the hatchback sport rear diffuser does NOT FIT the Si sedan? Because the new 2020 sport hatchbacks have a perfect looking diffuser in my opinion and the sizing looks like it could work just by eyeballing it.


Honda Civic 10th gen Full Replacement Rear Diffuser for Si sedan 7AC7EF45-43F5-4E80-B756-74ACE3127258
 
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CanadiaegeanBlue

CanadiaegeanBlue

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Is it 100% confirmed that the hatchback sport rear diffuser does NOT FIT the Si sedan? Because the new 2020 sport hatchbacks have a perfect looking diffuser in my opinion and the sizing looks like it could work just by eyeballing it.

7AC7EF45-43F5-4E80-B756-74ACE3127258.jpeg
Unfortunately the Hatch diffuser does NOT fit, the bumper is different to the Sedan's bumper. Mounting points are also different.

I totally agree with you that the Hatch updated rear end is a winner having seen it in person on 2020 Hatch, plus a friend with a 2018 Hatch who swapped it out with the new style.

I still haven't heard back from Seibon, the Si sedan desperately needs some help at the rear to accompany it's aggressive looks at the Front.
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