My Delima

Here is my question. If I take off everything from the headers back and replace it. What would I need to Pass Emissions or am I NOT able to pass due to having Long Tubes?
I keep getting myself more and more confused on what to do. Do I just replace Y-pipe with cats already in? Due I change the Exhaust setup completely? Replace Cats then get a tune to eliminate codes and give me a few extra ponies from the tune.
I wonder why those Simulators keep failing. Oh well, what are some of your thoughts or ideas that I could do with my car? Whats the most Logical thing to do? Oh yeah, by the way I only have about $600.00 to spend.
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I'd just replace the cats and have bungs welded in behind the cats for rear O2 sensors.
If you go that route I've got a set of low millage rear O2 sensors I'd sell ya for cheap, shoot me a PM.
Re'
shoukld I expect a great increase in HP after the Tune? I have a M6 and Mods are listed below. I have only bolt ons and thought that I might recieve a extra 15-20 HP with the tune is the acurate at all? or am I totally misinformed about whats going to take place.
If you have used (RPM) Ryans Performance Machines chime in and tell me what they have done for you and how you liked your tune. Thanks.


