"You ask for help but you appear to reject all suggestions "
My thoughts exactly.
Seems like he has already decided what he wants to do and is asking for affirmation rather than ideas.
Oh to be young again and have all the answers...
I took my family out for a nice meal, dozed off, and woke up with this puzzle stuck in my head. Thanks a lot!!!
The LG6 is pretty anemic!
http://www.automobile-catalog.com/auta_details1.php
I'll follow up after a good night's rest, and ask more questions that deal with your perceptions and desired outcomes.
Part of the issue could also be that not many of us are real familiar with the rodeo. I can tell you that for my 4.0 there is just not much you can do unless you go to the extreme. It's far cheaper and easier for me to do a 5.0 swap (currently in the works) and then far more high performance parts become an option. You'll want to be careful going to more HP though, the drive train is engineered for the power the stock motor puts out and sending more power through it will wear things out faster so you'll see more money going to repairs also. If you're not already involved with others in the Isuzu world, I'm sure there is probably a forum out there where you can learn anything you want to know about your rodeo and what kind of mods are possible. That's exactly how I learned about the Explorers, how I met Explorer Tom, who is the one that told me about this awesome group!!
Looking forward to seeing a cammed Rodeo.
Don't waist time on an anemic motor with no aftermarket support. 900 bucks for an exhaust is,money u could use to swap in another Motor. Shoot, u can get 5.7 tbi motors cheap. Make a plan, save up, get all the parts ready, all questions answered then swap it in. Things go faster that way and then your not burning up 300 to 1500 trying to get 15hp.