NO NO NO -don't get the Thrasher CAI -I had it and it is absolutely worthless as far as shielding heat from the filter -which is why I sold the box for $10. I switched to the 3.5" Intense FWI and I found better throttle response, and more power, plus a more notable SC whine at high rpms.
Where in South Dakota are you located? I have a few mods here from demodding my 99 SSEi like:
*Intense FWI ($100)
*Ceramic coated ported front exhaust manifold ($75 installed -I can also get you a ceramic coated rear PEM for another $75)
* ZZP PCM $65 and your PCM (you'll need a CASE Learn with this)
*ZZP Underdrive water pump pulley ($40 -requires a little grinding of the passenger side motor mount)
*Ported M90 supercharger with a modular pulley setup (3.4" and 3.3" pulleys) for $300,
*3 inch exhaust system - TRUE 3" mandrel bent DP, no cat, 3" HF resonator, 3" piping back to where the exhaust goes between the back wheels -stock 2.5" from there to the IMCO HF muffler with Magnalow stainless steel dual walled and resonated rolled lip exhaust tips similar to stock look, but MUCH nicer (I suggest a Magnaflow high flow cat from ebay or www.justmagnaflow.com
) -$100 and your stock exhaust system (this exhaust cost me all of $350+ so far).
I will give you a package deal for $700 (+ $75 if you want the rear PEM also) and your stock parts in return (delivered) if you aren't more than 200 miles from Sauk Centre, MN (zip 5637
and will deliver and help install all parts except the WP Pulley.