Lack of support could be a reason. I finally have up on rebuilding my GTS740L blower that ran dry and seized. Initially I ordered and paid for p/n 12002-AK001, realized it wasn't an L configuration. Sent request to TH Motorsports to cancel (within 2 business days). They kept leaving me on hold 15 minutes at a stretch until I called back blocki g my number. There never called or emailed several messages just to confirm right art number. They finally said my PayPal was credited back on Mon and I see it isn't!
Contacted another dealer showing a /n for the L type, double the price and includes the entire traction oil circuit replacement. He contacted HKS to confirm correct /n and request quickest turnaround under the circumstances, even if I have to pay extra, Rickspecd is the dealer. He's received no answers yet. It would be even better if they'd sell me the blower standalone.
It would be good if HKSUSA could intervene.

Please contact us directly at 855-800-7150. We want to help you get this taken care of.

I will first thing tomorrow morning. Fingers crossed.

Thank you guys for helping out. Seeing this get taken care of would ease my mind on the support and service issue.

Good luck and let me know how it turns out!

I will!

Update: I spoke with Josh at HKS USA today and explained my situation, which he had already been informed of. I explained that the component failure is in no way their fault and I do like their product. My reporting my situation on this forum is in no way intended to slander HKS or discourage people from buying their products. Since it is their system I have installed in my vehicle and in this case it would be considered a vital component since I had paid a mechanic to install it and a professional tuner as well, I had no intention to remove it. However I am relying on them to provide me a replacement of this currently sold product, at my expense. Josh indicated be will get authorization to split a kit so I can receive a replacement blower sooner than the anticipated time estimate if ordered from Japan.
I sent him my contact info and hopefully he will send me info shortly to facilitate the replacement purchase from a retailer.
Also, if HKS reads this, please note that I was in fact the person who started the HKS supercharger owners thread with the intention to exchange positive experiences and helpful information within the community and hopefully encourage others to join our ranks with this quality product.

My only regret at this point aside from accidentally reversing the oil lines is that I wish I hadn't sent the blower to a so called rebuilder in Montreal only to have him cause more damage, quote me more than 3x the maximum anticipated cost to fix, and then demand payment for services rendered to open it and determine it wasn't practical for him to fix it. Hopefully I will receive the paperweight back from him in a few days for the low low negotiated cost of $244 incl shipping.

Glad Josh is going to try to help you by splitting up the kit. Hopefully we can get that sorted out for you.

Sorry you had so much trouble getting things straightened out. Hopefully everything works out and we're happy to have your business. Just remember you can always give us a call for any questions regarding HKS and we'll do our best to help you out!

Hi! I did. There is no difference in installation apart from slightly different tubing on the back of the intake manifold (both options are described in the manual).

HKS "Fuel Upgrade Kit" are injectors which look 100% similar to the stock ones. The differences are 380cc (or 440cc depending on what pressure you are counting) capacity and green color of the plastic. Here is even a pic from the manual.

Awesome so the 6at and the 6mt kits are interchangeable with each other. No difference in parts? Just making sure that if I purchase one I wont need a specific version. ;)

Sorry Im a bit confused. So what cc injectors would I need to match the "Hks fuel upgrade kit"? Honestly does anyone know where to purchase this Hks fuel upgrade kit? I know it also comes with the 43mm restrictor so maybe i'll just stick with Hks upgrade it and be done with it.

Btw guys these might be useful:
http://www.motoiq.com/MagazineArticl...-Radiator.aspx

[ame="https://www.youtube.com/watch?v=0gwlNb2cSFc"]HKS GT Supercharger, CSF radiator - Scion Tuner Challenge 2014 Eps 4 - YouTube[/ame]

If anyone has the pdf install for the V2 GT Supercharger please post it.

Stock injectors still work with the larger 43mm restrictor that comes in the 'fuel-up' kit, so save your money and get the standard 39mm restrictor that comes in the kit opened up to 43mm.

@Lee @10Stars seems like people are saying that stock fueling is good until 300whp dont know if thats mustang or dynojet dyno but it seems like this kit wont come anywhere near that unless the restriction is not there anymore. That being said i would get injectors and maybe fuel pump to if i was near that number just to be safe feel free to correct me if i am wrong im just trying to help as best as i can.

The fuel pump will run out before the injectors, I wouldnt really want to go any larger on teh restrictor with the stock fueling set up.

I had my car tuned without any restrictor using stock fuel setup for 275 WHP at 7000 RPM with 93 octane. However my peak boost is showing 9 PSI and there is a possibility the peak boost was lower than normal as the unit I had might have been tampered with and the impeller looked like it had rubbed so a new unit might boost slightly higher with stock pulley.AFR still ran rich at the top end.

There is one kit which fits any transmission. Same for the oil cooler. Disregard the "not tested with AT" statement, it's just a disclaimer. There is simply "0" difference in the area where the cooler is installed.

"HKS fuel upgrade kit" = HKS Injectors + 43mm restrictor plate.

Nope. Fuel pump is fine for the HKS ones. And on stock injectors you won't reach the maximum of this SC even w/o a restrictor. Injectors upgrade (to HKS or any other larger injectors) is needed to do it. If you build the engine, use smaller pulley and planning to reach the 350 whp mark - you'd better get a new pump. For 300 whp the stock one is OK.