Dead Serious

Not a problem if you are just interested in fronts or have an AP1 but..............
I checked around to various online retailers as a curiosity. Warning to all. As of today every retailer i investigated still sells only one part number for rear uppers and the total kits. Prothane's own website still lists 99-09 rear control arm bushings as one part number. Talk to a human being and verify you are getting AP2 rear upper control arm bushings if you have an AP2. They exist because at least two of us have em. Prothane may be reluctant to release the part numbers until they personally get some bushings installed on a local test car to confirm fitment. Like i said in the OP I had to add a washer to get the propper fit and shared this with Prothane. Prothane is in Costa Mesa CA. If your local maybe they will set you up if you agree to be test car.

Fokker

Yeah, until they update the kit you'll end up with a second set of front upper arm bushings and nothing that fits the AP2 rear uppers. The part numbers for upper arms on the kit are the same front to back which apparently works with AP1, but it doesn't for the suspension redesign.

Gratuitous washer shot.

limited976

How does this compare to spoon/mushing rear bushings? Or powerflex?
I'm in need for new rear rubbers.. I need items 10,11,12,14 from this image:


Are these included in this set :
http://www.prothanesuspensionparts.c....asp?prod=8320

Kind regards

Fokker

They really need to update their site and kits. That looks like what we both ended up with. It'll fit the rear of an AP1 just fine, but it won't fit the AP2 rear upper arms. That set there will only cover the rear upper and lower arm bushings, toe arm bushings, and include the ball joint dust caps (worthless in my opinion). The total kit will cover front, back, stabilizers, and differential. http://www.prothanesuspensionparts.c...asp?prod=82022

In regards to the Spoon/Mugen bushings, both of those are hardened rubber and will be more compliant than the Prothane polyurethane and relying on deflection of the rubber to allow for movement. Performance-wise, I don't think you'll notice any difference between Prothane and Power-Flex (race) other than the Power-Flex will leave your wallet much lighter. If you're willing to put up with Prothane and getting the right rear uppers (if you have an AP2), then the Prothane is a much more cost-effective option.

Dead Serious

I spent an hour on Google and found some stuff. Price wise everything is all over the place. Basically the difference between Spoon and Power flex is the difference between rubber and polyurethane. Rubber is zero maintenance and soft and comfortable. Poly is regular maintenance, depending on what you put your car through, and very firm. Rubber bushings operate totally different by bonding the rubber to the chassis through the metal sleeve. The rubber flexes and has resistance against twist as well as resistance against all the other dimensions of suspension motion. If you jack up a car with rubber bushings the wheels go up in the air with the car. If you push down on a jacked up wheel the suspension wont want to move and it will spring back due to the resistance of the bushings. Polyurethane bushings pivot/rotate around the metal sleeve freely, which is why they tend to squeak if all the grease washes out.

I suggest you go with OEM bushings unless your car is used in competition where alignment is key. I went to see how much they cost and could only find 2 OEM part numbers for suspension bushings. Do you have to buy the whole control arm? Ouch big money.

Ill work on this list if i get some more time.

OEM
I only found 2 part numbers for OEM bushings, whats that about.
Typical Rubber Bushings(durable with zero maintenance)
52393-S2A-000 BUSH, RR. ARM (UPPER) $26.58
51306-S2A-013 BUSH, STABILIZER HOLDER (26.5MM) $5.35

Prothane
Polyurethane 95A Durometer
Total Kit Part Number: 82022 Price: $275.38
Front Upper and Lower Control Arm Bushings Part Number: 8224 $74.97
Rear Control Arm Bushings Part Number: 8320 $106.17
Rear Differential Bushings Part Number: 81603 $67.17


Powerflex
Polyurethane bushings are sold in 3 firmness levels (Durometer).
Street:
Yellow 70A
Purple 80A
Race:
Black 95A (Same as Prothane)

: 1- Front Upper Wishbone Bushing (4 pc) $110.99
: 2- Front Lower Wishbone Inner Bushing (2 pc) $62.99
: 5- Front Anti Roll Bar Bushing 26.5mm (2 pc) $62.99
: 5- Front Anti Roll Bar Bushing 28.2mm (2 pc) $47.99
: 10- Rear Upper Wishbone Bushing (00-03) (4 pc) $110.99
: 10- Rear Upper Wishbone Bushing (04+) (4 pc) $133.99
: 11- Rear Lower Wishbone Front Bushing (2 pc) $62.99
: 12- Rear Lower Wishbone Rear Bushing (2 pc) $62.99
: 14- Rear Track Control Arm Bushing (2 pc) $58.99
: 15- Rear Anti Roll Bar Bushing 25.4mm (2 pc) $47.99
: 15- Rear Anti Roll Bar Bushing 27.2mm (2 pc) $47.99
: Stainless Steel Caster Adjustment Kit (2 pc) $218.99
: Front Arm Rear (Compliance) Bushing (2pc) $194.99

Energy Suspension
Polyurethane Unknown Durometer post if you know this
Front Control Arm Bushings Part Number: 16.3120 Price: $115.72
Rear Control Arm Bushings Part Number: 16.3121 Price: $123.44
Rear Differential Carrier Bushings Part Number: 16.1112 Price: $100.28


Spoon
Rubber in shell design like OEM - Unknown durometer post if you know this
Part#: 51359-AP1-000
Our Price: $1,215.00
1. Front & Rear Upper Arm Set (4pcs) - 51455-AP1-000 - $250 (2 sets required for AP1)
2. Front Lower Arm Set (2pcs) - 51353-AP1-000 - $125
3. Front Compliance Set (2pcs) - 51391-AP1-000 - $125
4. Front & Rear Lower Damper Set (4pcs) - 51810-AP1-000 - $205
5. Rear Lower Arm Set (2pcs) - 52353-AP1-000 - $125
6. Rear Control Arm Set (2pcs) - 52366-AP1-000 - $125
Full set includes 20 pieces. AP2 Version includes 16 pieces. (Rear upper arm bushings cannot be replaced on AP2 with Spoon)

Mugen
Rubber in shell design like OEM - Unknown durometer post if you know this
Front Compliance Set - 2 Piece Set [51391-XGS-S0N0] - $100
Front Lower Arm Set - 2 Piece Set [51353-XGS-S0N0] - $97
Front & Rear Lower Damper Set - 4 Piece Set [51810-XGS-S0N0] - $132
Front & Rear Upper Arm Set - 8 Piece Set [51455-XGS-S0N0] - $347
Spring Mounting Set - 4 Piece Set [51686-XGS-S0N0] - $81
Rear Control Arm Set - 2 Piece Set [52366-XGS-S0N0] - $92
Rear Lower Arm Set - 2 Piece Set [52353-XGS-S0N0] - $88

Hardrace sold as
"Pillow Ball" Performance is "Superior than harden rubber bush" Unknown Durometer
or
"Harden Rubber""Hardness is 150% higher than OE Rubber" Unknown Durometer

$249.99 Hardrace Front Lower Arm Bushings (Pillow Ball) Honda S2000 6870
$278.00 Hardrace Rear Upper Arm Bushings (Pillow Ball) Honda S2000 AP2 7411
$286.00 Hardrace Rear Upper Arm Bushings (Pillow Ball) Honda S2000 6876
$195.00 Hardrace Rear Lower Arm Shock Bushings (Pillow Ball) Honda S2000 6875
$198.00 Hardrace Rear Lower Arm Bushings-Front Side (Pillow Ball) Honda S2000 6874
$263.00 Hardrace Rear Lower Arm Bushings-Rear Side (Pillow Ball) Honda S2000 6873
$288.00 Hardrace Front Upper Arm Bushings (Pillow Ball) Honda S2000 6872
$190.00 Hardrace Front Lower Arm Bushings (Pillow Ball) Honda S2000 6871

$58.00 Hardrace Rear Lower Arm Bushings (Rear Side) Harden Rubber S2000 7424
$58.00 Hardrace Rear Lower Arm Shock Bushings Harden Rubber S2000 7423
$96.00 Hardrace Rear Upper Arm Bushings Harden Rubber S2000 (AP1 only) 7422
$96.00 Hardrace Rear Upper Arm Bushings Harden Rubber S2000 (AP2 only) 7421
$82.00 Hardrace Front Lower Arm Bushings (Rear Side) Harden Rubber S2000 7420
$82.00 Hardrace Front Lower Arm Compliance Bushings Harden Rubber S2000 7419
$57.00 Hardrace Front Lower Arm Shock Bushings Harden Rubber S2000 7418
$57.00 Hardrace Front Lower Arm Shock Bushings Harden Rubber S2000 7418
$95.00 Hardrace Front Upper Arm Bushings Harden Rubber S2000 7417

Fokker

Hardrace told me their hardened rubber is 70(A) durometer. Marketing material claims that is 150% of what OEM is.

One thing to take in account for the Hardrace compliance bushing is that is fully filled with rubber. There's no slots to allow for additional play in the bushing (made installing the loaded arm more of a pain in the ass over OEM).

Not specific to our cars, but here's a nice write up on rubber/poly differences.
http://www.hemmings.com/mus/stories/...feature14.html

Dead Serious

Do you see this guy in your nightmares?

Fokker

Once I got it in, it wasn't too bad. I had to use an engineer's hammer and a drift punch to get it in place though. Just trying to push it in using the leverage provided by the arm wasn't working. With OEM bushings, I was able to slide in with almost no effort.

limited976

Front bushings has just been replaced with SPOON's.
I was going to the alignment and it seemed my cambeer couldn't be adjusted at de rear since the bolt is stuck,
wich mean my upper bushings are stuck + other upper bushing. Lower bushings are fine.

Should I replaced them with poly? Or are these available OEM?

Fokker

You should be able to turn the bolts unless there's a crap ton of corrosion or damage. Loose the nut, hit it with some PB Blaster (or similar), and put a breaker bar on the adjustment end and work it back and forth until it breaks loose. The upper arm bushings don't adjust any of the geometry.

Given you already have rubber, I would suggest staying with that. It probably would be best to replace the rears with Spoon to match your fronts for stiffness.

For rubber options you have:

Spoon - http://www.nengun.com/spoon/suspension-bushes
Mugen - http://www.nengun.com/mugen/engine-mounts-bushes
Hardrace - http://www.buyhardrace.com/product/h...only-_204.html

OEM - http://www.hondaautomotiveparts.com/...REAR+LOWER+ARM (Part# 36)

I'm not sure what your options for ordering are given your location, but Nengun will most likely ship to you. Remember, you'll need a press to remove the old ones and install the new ones if going with rubber.