Monday, April 2, 2012

Powertrix Coilovers & Mazdaspeed Front Strut Bar

The end of 2011 I decided I was going to go a different route and do some changes to my setup.  A big one that I was super excited about what getting rid of the Tein S-Tech Lowering springs for a set of nice race coilovers.  Don't get me wrong I loved the S-Tech lowering springs, for the money they performed great even in autox.

For awhile I head my mind set to buy Stance GR+ Coilovers.  I've only heard great things about them and the price is very satisfying for a solid coilover.  After some random forum browsing I came across a group buy for a set of Powertrix Racing Coilovers.  Normal price of these falls right in the same place as the Stance at around $1,500 and the group rate was going to be $1,034 shipped, so naturally I became curious.  I started trying to find information about the brand and came to find they are a very reputable brand in the Nissan scene for the older Z's even to the new 350Z, 370Z and Infiniti G models.  The few RX-8 owners that did own them talked very highly of them and compared them with the Stance GRs for quality, fitment and performance. I decided to take a shot at them.

After about a month or so waiting for them (production wait) I finally got them and was insanely eager to put them on.  I got them on a Friday and installed them myself on Saturday.

QUALITY: First off the quality was amazing.  Both front and rears are a full assembly so you do not have to swap the rear top hats which is pretty common on most coilover sets for the RX-8.  The springs and collars are powdercoated in black, and the spring perches and top hats are powdercoated in a nice green similar to a Kawasaki green.

FITMENT/INSTALL: Fitment was also very nice.  I had 0 issues with any clearance or fitting.  The went right in as OEM would. Install took me around 4 hours including height adjustments to where I wanted being the first coilovers I have ever done I thought I did decent.

ISSUES:  The main thing I would like to be known, really isn't an issue at all.  The way the front coilovers are assembled, the adjustment knobs are extremely long.  They are to the point that if you are running the OEM Front strut bar it will not clear them.  Now the reason this isn't a huge issue is because the coilovers do come with spacers that you have to actually unbolt the top hats of the fronts and insert the spacers and reassemble, this will allow you to run the OEM Strut bar.  For me I decided to leave it the way they came because I knew it would force me to finally just go ahead and purchase the Mazdaspeed Strut bar.

THOUGHTS: Absolutely in love with these.  I have tried a bunch of settings.  For now I have been mostly cruising around in full soft which makes for a pretty comfortable daily commute.  For some fun I have experimented with some settings.  I did like 10 clicks up front and 7 clicks in rear.  The ride was super responsive and the body roll in the car was super minimum.  For now that is all I really can say.  Autocross is coming up in a couple of weeks and I will do a follow up on how they perform on the track.

As I mentioned, I did go ahead and purchased the Mazdaspeed Front Strut Bar.  I figured I would just go ahead and increase handling further and at the same time add some nice bling to the engine bay.
There isn't too much to really say about the MS bar.  Fitment is great, install is super simple (10 minutes) and it adds a lot of feedback to your steering wheel.  All extremely likable things.


  1. Thanks for the marvelous posting! I certainly enjoyed reading it, you can be a great author. i like Mazda car.

  2. thanks a lot for the support.

  3. This MS Shock Tower bar has been proven to do absolutely nothing for handling, or any shock tower bar for that matter. I say "shock tower" bar, because the RX8 doesn't have any struts. It does ad a brake brace, and open access to the tops of the shock towers. Any "feeling" of change in handling is simple a placebo. There are many that autocross without it, even some drifters, and see no difference. If you research the RX8 chassis design, you will soon realize this.

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