I am new to the forum and new to owning a lexus. I currently have a 2004 gs300 with 101k on it. I am swappng out the stock engine for a aristo 2jzgte and pulling off the twin turbo and installing a single turbo. gan anyone give me any advice on the most essential upgrades to go with this turbo. I am on a linited budget. The engine,the new turbo kit, intercooler and piping installed will run me 5k. I have approx $3500.00 left after that. any advice, suggestions etc. would be greatly appreciated. Thank you so so much!