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DIY - JDM Door Sills

14308 Views 48 Replies 22 Participants Last post by  stella
DIY: JDM Door Sills

It takes a certain amount of courage to tear apart our luxurious interior,
but even more to cut it ;) You will be doing exactly that using this DIY--tearing and cutting.
Do not worry! It's a cinch; trust me. If I did it, you can too.

1. Remove the top portion of the sill by wedging a flat surface underneath and carefully prying upward:

2. Once the top portion of the sill is removed, the bottom half is next.
Removal is just like step one. Pry from behind as to avoid damaging the paint:

3. Now the top and bottom halves of the sill are removed:
(check out the 12-year-old preparation plastic)

* if you're a neat freak like me, then clean underneath where the sill used to be.

4. Cut out the USDM sills as such:

Notice I cut before the small hump, just after the raised grips.
In step 6, you will bring the cut forward, right at the small hump.
It's easier to do this in two phases to eliminate an accidental screw up.

5. Pull apart the cutout:

6. Now that the main cut is finished, I used a dremel to smooth out the cut and actually bring it forward a bit, right to the small hump, so the JDM sill sits flush.

7. You may need to pull off the mount tabs from the USDM sill
if any slipped off during the removal. If so, do that now and place them
back in their mount holes. Finally, sit the JDM sill in place:

Repeat steps 1-7 for the remaining sill.

I spent more time polishing the sills than I did intsalling them:

Good luck and God speed!
Post any further questions or comments.

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Just bought a dremel. Installed the EDMs last week. These gotta be next. How flush do they sit? Is there any gap where the step plate doesnt look stock after installing the JDM sill?

Maybe you could post a pic of the coupe from above. ....kinda like what you'd be seeing if you were getting in the car.

Thanks for the DIY. I've had mine for a year and never installed

I know Mike! It also took me a year plus to get my EDM corners on....believe that?

Yeah, and my doorsills are still under my bed after all this time. One day, one day.



I'd love to sell them to you. But I am attached to then. I actually installed one in my brother's coupe a few months back using this DIY.

I just have to find the time to do it to my coupe. Sorry man, wish I could help.

Nope, 1 pair. Gave em to my brother to figure out how to DIY with an xtra set of OEM plastic sills. When I saw how good they looked installed, I HAD to keep em.

They're never on Ebay anymore. Probably been a year at least since I seen em.

Nice price and condition. Good find.

Octane: If you want to purchase the plastic JDM doorsills that the metal sills originally came mounted on (they are dark grey in color), let me know. If you use them, there is no DIY, just pop em right in. They look good with black interiors IMO.

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