SPB Rear Toe Control Arms
 

Installing Spec Boxster Bilstein PSS suspension and planning on doing rear toe control arms at same time. Question is TunerRS or Tarett? Other than $111.00 price difference, not seeing a difference. Please weigh in!

If you plan on running SPB, Tarett is the only aftermarket option allowed.

If you are comparing these two:

Porsche 996/997/986/987 Rear Toe Link Control Arms – TuneRS Motorsports

Porsche Rear Toe Control Arm Link, 996, 997, 986 & 987

I don't see any difference. The price difference isn't as much as your thread so I may be looking at the wrong ones. Some include bumpsteer adjustment and so at the outboard end they don't have the standard tie rod end ball joint and pin, like this, and these style are more expensive, and not allowed in Spec Boxster (disclaimer: I don't run SPB):


Toe Control Arm (ea), Motorsport Style

These are what I run, and they include the toe locking plate:
Rennline Rear Toe Control Arm W/Bump Steer Kit-Rennline, Inc.

Actually the rule says:

Rear toe links: stock or Tarett Engineering #996TLNKR, or any similar rear toe link as long as it does not alter suspension geometry beyond being longer and does not function differently than either of the other allowed toe links.

So either is legal, this is a quality vs cost question only.