I've solid endlinks at the moment, and they don't transmit anything. It's really a cumulative thing. One or two probably wont make a difference. The more you add, the worse it gets until driving it on crappy roads rattles your teeth out.

All I can say about SPL comes from my installer. He said he appreciated the quality, ease of adjustment, and the design of the camber arms. He was impressed by it. Bought the part new from Fontana Nissan when he had it on ebay LY (NissanRaceShop.com) for 229 and he threw in the toe bolts. Hit or miss in terms of availability. Good luck.

I run SPL arms in my daily driven 240sx (and will run these in my Z). Just the camber arms, like what he said, you won't feel much of a difference in terms of vibration, if any at all.

SPL is definitely higher quality...but the SPC kit gets the job done for a daily. Save the $100- and put it towards your allignment.

Save $100 now...but if an arm breaks while going over a pothole or manhole cover..while going through an intersection... The alignment slips and you plow into a school bus ..that $100 really was a big savings
Just sayin

Thank you!

I heard SPC = Eibach, can any one confirm?

Looks like it. Like 99% of everything, its all made in china so I'm sure they both buy from the same supplier but put their name on it.

Yes a vendor confirmed this for me when I ordered my SPC. Syno explained it pretty well that's what I would've guessed too.

The spl front is like $800 so just go with spc in front and spl in the rear?

Eibach, a German company biting a design off a chinese company. Awesome. Is it TUV approved? From what I've read and who I've talked to so far SPC is okay for street but the rear arms break under track use.

At low speeds I can hear the all metal bushings with my toe arms and camber arms. But once your at speed you can't hear them. I can say after my new suspension my wife does not like to drive or ride in our z because she says it feels so bumpy and loud. I just turn up the music. It is rough but not unbearable.

What about SPC front camber arm vs SPL?

I ran spc front and rear prior, rear arm snapped on the track at close to 80mph on compression and caused severe damage all rear arms and bushings. I emailed Spc with pictures and the failure and said they would send me a new one and never did. I will make a separate post about it in the track section. The front spc control arm will slip when driven hard unless you torque the **** out of them. Not worth saving and cheaping out. I could have easily have hit the track flag post but was lucky I didn't.

what martin said. for the front though you could also safety wire the big nut or do the mod someone did with a welded screw so the nut wouldnt slip. personally SPC and kinetix look fine for the front since they are just a huge peice of steel but the bushing would need to be replaced with the plastic stuff (delrin??) on both. the SPC would need locked some how (like i said) and the kinetix needs modded since it doesnt do that much camber. so for both after you spend time and money on them, might as well just get the SPL.

O and SPL does caster and is easy where SPC is a PITA and kinetix does none.