Jerry,
I don't have any info regarding which would be better for towing. From what I've seen on-line they both claim to produce the same amount of power. I was set on going with Wipple but I had a couple of negative conversations with them on the phone regarding warranty work if it were to come up, and there idea of an intercooler is spraying liquid gas before it gets atomized threw the supercharger. This is a corrosive issue and may explain why they will only warranty the unit for 12 months. Another secondary issue is that they piggyback a computer control unit to your factory one. According to the techs I have spoken to at GM, Ford, & Chevy this can cause problems and is one of the biggest reasons the major manufactures do not choose to deal with Wipple. The biggest reason for me and why I went with the Magna is that there isn't anyone in this god forsaken town (las vegas) that is capable of installing the Wipple unit. I would have had to driven to either Sparks NV, Phoenix, or Whitter Ca just outside La in order to have the product installed. (and yes I called Wipple to ask where the nearest authorized place to me might be). So after speaking with the local H2 dealer and getting it in writing that they will repair under warranty for (4yrs) ANYTHING that might go wrong with the Magna Charger be it equipment failure or some other type of failure due to the installation or caused by the installation of this product. I decided to go with the Magna Charger, it is being installed now I should have it back by Friday. I am planning on taking it to a dyno shop to find out what the numbers are and I will share the info when I get it.
If you have someone you trust in your town who can install the unit and will stand behind that installation then by all means go with the Wipple. A lot of people I spoke with unfortunately from other parts of the country are very, very happy with there Wipple’s. I am not putting down the product. Just trying to justify my decision in my own mind and sharing some of what I just went through.
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