I recently purchased a losi eight 2.0 buggy and put in a .21 GX-5R turbo engine. I love the engine and car but have a few questions.

1. I left the stock losi pipe on, anyone tried, recommend, or not recommend this pipe for this engine?

2. What's the best turbo plug for this 5 port turbo Go engine in high heat and relatively high humidity? "South Texas"

3. Any idea what could cause this engine to not idle by itself? If I don't gas it every second or 2 it dies. I have tried increasing idle, and leaning both high and low end needles as it also dies when gassed hard from idle. I'm pretty sure the needles are where they need to be because when it's running it's great as long as I don't stop.

thanks in advance