STILLEN 370Z Supercharger System - Announcement!!!

Originally Posted by WorldFamousZ

I've been reading up on these kits on this string of threads for a little while, thought I might post my past experience regarding my 350Z supercharger kit with Stillen...

First off allow me to say that I think Stillen always has the best intentions and truthfully some good products. some not so good. But that's with anyone.

When I supercharged my 350Z years ago, I was working for Performance Nissan and I was getting a lot of support on my kit since I was selling quite a few kits through the dealership for a few years. as time went on and I moved on from that dealership, my customer support started to drop off with my issues that came up regarding the blower. In the end when I was working for Riverside Infiniti, although we were stillen retailers, we were not big movers of the blowers and it seemed that my support had fallen off alot.

Now stillen's service dept has always been good to me when I had the car in, they always did very good quality work and didn't rush anything which is commendable.

But the problem that I have overall with the blower kit and how stillen markets it is this:
They release a kit that they say is turn key ready to go. But then issues such as belt squeal or tunes end up popping up with a bunch of end consumers. Stillen then re-designs certain things and updates them for sale in newer kits. But for those stuck with the original kits who have these issues, stillen CHARGES you for the upgrades and updates.

For me, I had constant belt squeal issues and went through belts a lot. Then Stillen released a new idler pulley design. I needed it to fix my issue and they charged me for it and the install. Then they came out with a 6-rib blower pulley and shaft upgrade to help with the upper belt wearing out prematurely, and that upgrade was a few hundred $$ for just the parts. I never did do that upgrade. Then they came out with a different fuel/timing controller instead of their old split second box, and when I was running into issues with my timing box, they charged me I think (I mayb e wrong )approx $900 installed.... All this just to keep their kit working correctly on my car. Albeit we did go to a custom stage 4 upgrade and the tune was custom, but anytime I needed to replace up update a faulty part on the kit, they never helped out.
IMO, if you make a faulty part, it's up to you to rectify the situation not charge more.
There's a difference between simply "upgrading" to a better design of something and needing to replace a bad part with an updated one. If I simply wanted to upgrade to a newer piece, I'll gladly pay for it, that's my choice. But if I'm constantly having issues etc I expect the company to fix it, not charge me...

This is the experience that I've heard from a LOT of consumers of the Stillen kits and products. Now, not speaking ill of the Stillen brand, that's not my intent, but just stating my experiences.

Originally Posted by ARFCOM

My overall impression of this debacle isn't good. I myself will never trust Stillen.

Remember how often they were posting at the beginning of this thread? Where are they now? Are they waiting for all of this to blow over and hoping everyone just forgets about it and moves on?

Has anyone taken any legal action in some way? Class action? Maybe a product recall?

I'm just glad I didn't fork out the money to puchase this kit from Stillen and install it on my three month old 2010 Z.

Originally Posted by Phimosis

Well, this debacle is still better than any other supercharger solution. My car had problems, but it's been fixed for months and runs perfect. Yeah, my car makes 16hp less than what they advertised in their press release, but the competition - only GTM at the moment - only has one running example of their kit on any of the forum member's cars, and it makes 62hp less than their press release advertised. Also they've had a problem with their intake pipe that's supposed to be resolved soon, but they're still months behind Stillen in having everything fixed.

Originally Posted by Phimosis

Well, this debacle is still better than any other supercharger solution. My car had problems, but it's been fixed for months and runs perfect. Yeah, my car makes 16hp less than what they advertised in their press release, but the competition - only GTM at the moment - only has one running example of their kit on any of the forum member's cars, and it makes 62hp less than their press release advertised. Also they've had a problem with their intake pipe that's supposed to be resolved soon, but they're still months behind Stillen in having everything fixed.

Originally Posted by shumby

LOL you need to read better. the kit with 62hp less is mine and i am also running only 6 psi pully. As well it is not 62hp but what ever. As for the intake it is a non issue it preformed as needed but when Sam saw the casting he knew he could make it better. So to recape. GTM kits are as advertized and no issues. Stillen less HP then advertized meny tune issues. 8+ revisions now. and so far one blowen SC. So tell me how GTM is month behind.?

Originally Posted by Phimosis

GTM is months behind because they only have one customer car
that works well enough that the person was willing to post his/her dyno sheet. Stillen had their first customer car done and dyno results posted in May. I would call that 5 months behind. If you go back and read all the GTM supercharger threads you see posts in august saying "dyno results next week". But, that next week hasn't come for 3 months.

As far as the 6 psi pulley goes, we've only
seen one person use it and it happens to be the only dyno result from an end user posted to this forum. Why would it be unfair to use it as a comparison to their press release, which adterised 452 whp with 8 psi boost. There's no one else to compare to. The people that have the 8 psi pulley can't develop 8 psi becasuse the supercharger unit can't keep up in the upper rev range. Still, if GTM wasn't months behind Stillen or they weren't haVing problems, you'd see dyno charts. So, the GTM kit only makes 390 whp until someone proves otherwise.

There's a saying in medicine we frequently use: if it's not documented, it didn't happen. And it's sound logic that holds up in the court of law. Using that logic, the most power you can get out of the GTM kit is 390 whp, which is 62 hp less than their press release. If gtm gets new pulleys out there, a new tune or improved charge pipe and starts getting customer into the 420 whp range where Stillen is, then it's still fair to say that GTM is months behind Stillen in that regard.