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Originally Posted by norcalpb
I've had both WL and SPC and they both have "SPC" stamped on them so they are indeed the same. This is also the case for the SuperPro arms.
Only difference will be the inner bushings, which will be polyurethane in the case of WL and SP, but SPC uses a "cross-axis" bushing that seems to be similar to the pillow bushing found in the OEM STi RLCAs. Weight difference between the bushing styles will be negligible. I believe that Whiteline originally had an offset in their inner bushings but their newest design has removed that.
Either way, all these "SPC" arms seem to be non-OEM replacement arms that are slotted by SPC. I believe some of these companies have procured and painted them for re-sale. |
very good info thanks, actually SPC answered to my email:
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Once upon a time we did, though I hear we haven’t sold any to them in quite a while. Not to say that they didn’t just do a big one time buy and not need anymore though, picture on their website sure has an SPC stamp on the arm.
There’s few contributing factors to a weight difference- 1) Whiteline running a urethane bushing vs our xAxis, and the xAxis is generally a little heavier due to construction , 2) our weight includes the weight of the toe bushing we include in the kit and it doesn’t look like theirs comes with such a critter, and 3) our weight is a packaged weight and I don’t know that theirs is. And if you’re being SCCA Miata levels of pedantic ours have a black finish coat on them, but that’s a special kind of scale that’d even register that.
so yep we can confirm in nearly the same. Thereby I will go for the SPC due to the xAxis