Hello,

I tried sending an inquiry to your email (info @ murf928.com) but it bounced back. I am interested in the Stage 1 supercharger kit. If you can share more details and pricing, Thank you.

I was recently researching supercharger kits for my 1987 928S4. I was trying to decide between your supercharger kit and the 928 motorsport kit.

Is there any differences between the 2 kits, I know 928 motorsport sells the stage 1 2 and 3 but you only sell 1 and 3. Any particular reason for that?

Also with the stage 3 kit does it require anything higher than pump 93 octane to run.
Does the kit coming with methanol injection? I assume i will be using the stock fuel pump?

The car right now sits on 109 thousand miles. Does the kit require the crank to be pinned to the pulley? Does the Vortech Supercharger require the oil to be changed or is it a self contained unit?
What are the prices of the kits as well? Have you ever taken any of your cars to the track? 0-60 times? I forgot to say this is also going on an automatic.

Do i get to keep the A.C? And does the kit come with detailed instructions?

what is the warranty as well?

Thanks for your time!