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Rear Disc Brake Upgrade - 2013 Honda Civic LX

Aparajith

Well-Known Member
48
13
Hi all,

Thanks to COVID and Canadian Winters, my rear drum has rusted and requires replacement. The front disc pads need replacement as well. I feel this a good time to upgrade the brakes on my car. I went through this thread on another forum: https://www.***************/threads/2012-lx-gx-rear-drum-brake-to-ex-disc-brake-conversion.115305/ and Webby's post here https://9thcivic.com/forum/threads/rear-brake-swap.7864/post-180503. Would these discs be sufficient for the rear, alongwith other parts from Honda - https://thmotorsports.com/238058-stop-tech-sportstop-drilled-brake-rotor?openOptions=True, StopTech 12840040R Stoptech Sport Cross Drilled Brake Rotor; Rear Right | THMotorsports . As for the front: StopTech 126-40036CSR Stop Tech Cryo Brake Rotors | THMotorsports and https://thmotorsports.com/4617178-stop-tech-126-40036csl-stoptech-cryo-brake-rotors?openOptions=True . Any comments or suggestions before I embark on this?
 

webby

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if you're wanting si sized rotors up front, you'd want 11.8" rotors. The ones you have linked are 11.1".

si = 11.8" / 10.2" Vented front disc/ Solid rear disc brakes

Otherwise, you're good. Did you find a set of used calipers and the other parts needed?
 

Aparajith

Well-Known Member
48
13
Hi Webby, I am not trying to upgrade to Si. I am just thinking of replacing the rear drums with disc size of an EX-L and with something better than OEM/Stock. I do not have any used calipers etc. We are on total lockdown with everything closed and I might as well get the entire kit new. As for the other parts, I might just get them from the Honda warehouse/showroom.
 

webby

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Hi Webby, I am not trying to upgrade to Si. I am just thinking of replacing the rear drums with disc size of an EX-L and with something better than OEM/Stock. I do not have any used calipers etc. We are on total lockdown with everything closed and I might as well get the entire kit new. As for the other parts, I might just get them from the Honda warehouse/showroom.
I'd strongly suggest looking or calling around to some junkyards/ebay etc, but that's your call. I believe someone else tallied up the list prices from honda, and it was around a thousand dollars+ for just the rear calipers/brake lines etc. I feel like some people did it for 200-300 dollars or something buying used parts.
 

freggie

Well-Known Member
I would not buy drilled rotors because they can crack, I have cracked 2 rotors at different times in the past. I have since gone drilled rotors... If you go drum to disc, I would suggest checking junkyards or ebay. I would look for the whole trailing arm assembly that come with the calipers and maybe discs this way its mostly bolt on. I have seen the whole assembly "used" on ebay but I don't want to pull the $500/600 price tag and these are from junkyards so you may even ask them if they can sell you the whole unit with the calipers... of course your local junkyard would be a lot cheaper, my pick-your-part has a list of cars and pictures in their lot so I can see what submodel ie: lx, ex.... some local junkyards would even remove the part themselves if you pay them a fee. I just havent gotten that far into it since I have other projects

edit: I meant I have since gone slotted rotors not drilled....
 
Last edited:

Aparajith

Well-Known Member
48
13
Ok guys, thanks for the suggestion. Let me check my local junkyard and eBay and get back to you.
 

Aparajith

Well-Known Member
48
13
if you're wanting si sized rotors up front, you'd want 11.8" rotors. The ones you have linked are 11.1".

si = 11.8" / 10.2" Vented front disc/ Solid rear disc brakes

Otherwise, you're good. Did you find a set of used calipers and the other parts needed?
Can I get these rotors and discs and install them? Also what parts would I need to purchase? I found a front wrecked Civic Si.
 

webby

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Can I get these rotors and discs and install them? Also what parts would I need to purchase? I found a front wrecked Civic Si.
you need more than just the disks/rotors. I haven't seen a full parts list with the correct part #'s for the 9th gen, but the 8th gen part list is
====
Heres the List. FOR ABS equipped LX'S & DX's, #3 and #4 are $30 each for non-ABS DX's

#, Honda Listing# - Part Name - Part# - Qty - MSRP Per Item - Qty x MSRP

1 5.2 KNUCKLE, R. RR. 52210-SVB-A00 1 136.70 136.70
2 9.2 KNUCKLE, L. RR. 52215-SVB-A00 1 136.70 136.70
3 26.6 SENSOR ASSY., L. RR. 57475-SNA-003 1 107.73 107.73
4 25.6 SENSOR ASSY., R. RR. 57470-SNA-003 1 107.73 107.73
5 6 BRACKET, RR. KNUCKLE 52212-SNA-A00 2 12.67 25.34
6 7 BOLT, FLANGE (6X12) 52213-SNA-A00 2 0.83 1.66
7 6.3 CALIPER SUB-ASSY. 43018-SNA-A10 1 176.35 176.35
8 7.3 CALIPER SUB-ASSY. 43019-SNA-A10 1 176.35 176.35
9 8 PAD SET, RR. 43022-S5A-J00 1 60.23 60.23
10 27 SPLASH GUARD, RR. 43253-SNA-A00 2 22.77 45.54
11 41 BOLT, FLANGE (6X12) 95701-06012-05 6 0.72 4.32
12 38 O-RING (63X2.4) 91352-SNA-951 2 3.12 6.24
13 37 BOLT, FLANGE (10X53) 90163-SNA-000 8 2.07 16.56
14 4 BEARING ASSY., RR. 42200-SNA-A51 2 87.32 174.64
15 36.2 BOLT, WHEEL 90113-SA0-006 10 4.48 44.80
16 39 SCREW, FLAT (6X14) 93600-06014-0H 4 0.48 1.92
17 5.2 DISK, RR. BRAKE 42510-SNE-A00 2 80.05 160.10
18 35.2 BOLT, FLANGE (10X30) 90103-SV4-003 4 3.37 13.48
20 3.2 HOSE SET, R. RR. 01466-SNA-A51 1 34.93 34.93
21 4.2 HOSE SET, L. RR. 01468-SNA-A51 1 35.08 35.08
 

Aparajith

Well-Known Member
48
13
Thanks Webby. I wanted to know if I can get the discs and caliper from the junkyard and rest of the spares from Honda (if necessary) as I am not sure if the Si parts would fit in an Lx.
 

webby

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Thanks Webby. I wanted to know if I can get the discs and caliper from the junkyard and rest of the spares from Honda (if necessary) as I am not sure if the Si parts would fit in an Lx.
As mentioned earlier, it’d be best to get the trailing arm assembly, but get whatever you can. It’ll save you $ on anything you buy new from Honda.
 
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