Hardrace vs SDI adjustable control arms
 

You may have seen my other thread about silver project control arms.

As I'm having alignment issues, I'm thinking about ruling out issues with the adjustable control arms.
I have them due to a 1.5 inch lift kit from ecstunning.

I never had any experience with either, and would appreciate any input of you tried either, or maybe even both! Wonder if there's been any failures with either.
For silver project, I saw photos of them bending, but other people said they were fine.

https://streetdrivenindustries.com/search?q=e53

Vs

https://hardraceusa.com/collections/x5-e53-2000-2006

I had good experience with Goodspeed for E39, but they have nothing for E53

I guess there's also Megan racing, wonder how what compares as well

https://meganracing.com/suspension/t...ms/mrs-bm-0570

I've had silver design for almost 3yrs. First two with Bilstein B6 / H&R sport springs, last year with KW V3's. My ONLY complaint is rapid corrosion in a salt state (Nebraska). This allegedly could have been prevented with a waxoyl-type protectant, but I failed to anticipate this issue. I plan to replace with same silver arms, but with a good protectant barrier.


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I called the alignment shop back, after 2 alignments got knocked out.
They're saying it's the silver project control arms.
I gotta get under the vehicle and check those alignment marks again...

I have the SDI control arms on my E66 haven't used them since they were installed. But they are made in USA by one guy, with quality materials.

I used Megan Racing