Hey all VXians. I love my 99VX Auto 3.1 Ltr

I'm thinking of buying a SA Alpine Supercharger kit. I've asked about it locally (Japan) although most mechanics aren't able to help. Does anyone have one installed? Does it make a significant difference in regards to off the mark acceleration and reasonable fuel efficiancy? Is there a cheaper option(maker) with same power increase? The alpine kits retail at around $3400.

I have limited experience with car mechanics but I've read it's possible to install the supercharger at home? Is it not too difficult?

Really looking forward to more responsive power and speed.
Any advice greatfully appreciated

Thanks heaps from Jetz in Japan