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  1. 1JZ VVTI OR NON VVTI

    Go Fast Stuff
    Hey everyone. I’ve got a 03 is300 that I’ve been pondering at boosting/ swapping. Obviously it’s got the stock 2jz Ge and I’m thinking of swapping in a 1jz I just can’t decide non vvti or vvti. I’m trying to do it with the least amount of headaches as possible/ most cost effective. Right now...
  2. Turbo PSI dropped after exhaust change

    Basic Help & Repair
    Hey Guys. Really need some help. My Aristo Swap 2jz gte twin turbo IS300 had 3 inch straight pipe with catback at 14.5 PSI. Unfortunately, I had to change my exhaust to 2.5 inch with filters due to law issues and I saw the PSI drop to 7 PSI and I have lost significant power. Is there anyway to...
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