So what exactly is wrong with the Stillen SC kit?
 

So I have been reading on the supercharger threads and there seems to be a lot of bashing of the Stillen kit. I have not read any details, though, as to what the problems are with the Stillen kit. I've read about some really lame gains with the box tune, but that seems to be fixed with a proper tune. If anyone can tell me issues members have been having with the Stillen kit or direct em to some threads that explain the problems, that would be great. I am leaning towards a GTM stage 1.5 kit is I do it, but would like to do my full research since the Stillen one is CARB approved.

Thanks

The problem is stillen doesnt put enough sugar in their kool aid

if you can relate to this, this is spot on.

But tells you there is more than enough

tip. register your car in CA in a county that doesn't require smog. i have one of my cars still registered in the city of Bishop with a friend. it's carb, so you know its gonna be mild. carb = nazis. TRUST me i know.

stillen kit.. no real air to air FMIC. vortech s/c. canned tune. etc. if you really read and do your research, you'll see a GTM S/C kit is the way to go if thats the route you want to take. I'm going GTM 1.5. I've read for countless hours and went back and forth between turbo/s and superchargers. I originally wanted the stillen, because i'm a CA resident and i'll move back one day. but fact is, stillen is good if you want a CA legal alternative that will make a little bit of power. if you modify it, its not carb legal anymore anyway. when i move back to CA, i'll remove my kit, register the car in a county that doesn't require smog, and reinstall it. problem solved. and btw, I have read things about registering your car through a PO box in CA. do it in a county that doesn't require smog and i think you're home free. just travel to renew your tags once a year. :)

If u want power in carb state, stick to bolt ons.

This is interesting. So I should make a fiend in Bishop or look into P.O boxes...

the PO box thing is so people that live in RV's and travel / don't have a permanent address can get their registration. only a few states do it if i remember.

Wait, are you saying having a SC kit is a felony? The funny thing is I will probably be putting the stock cats back on if I do it.

Please don't feed and spread this BULLSHÍT. This is 100000000% wrong, you can get a ticket, that's about it.

But thank you for your service :usa:

youre welcome, DE. and i guess i read it wrong all that time ago. I used to drive a 96 GSX, big turbo, no cats, smokey. I had CHP pull me over, and refer me to some code where it listed it all out. maybe it was that if a shop removed stock cats it could be a felony? I forget. I was exhausted when i posted that and I appologize for the bad info

One of the things people dislike is even with a good tune the Stillen kit falls below the GTM kit in HP and TQ, mainly TQ.
Also, all who try to reach 500whp stop and switch kits, the stillen kit just seems limited in its expand ability.

I have known a few owners and they like it for what it is and the power it provides. With a good tune and supporting mods it can be a solid kit, just limited versus other options.

should offer the V7 JT or YSi as an upgrade

Would say anything is wrong , per say? True you will NOT see 500 WHP probably the only thing wrong. But is a very good kit . I had it modded something's (SC impeller, pump , injectors , heat exchanger, an MAF's) and was still under 500 WHP (457) but as a DD an have smog in MA Was nice to have a CARB kit.

Not saying the Stillen kit is great or anything since I don't have it, but when they say 500hp, they mean bhp so if you get 425whp, you are hitting their rating, though it seems like most don,t hit that either.