For an easy interior mod, you could get Indiglo gauges - they slide over your needles and stick over existing gauges and glow like the indiglo watches, or with reverse indiglos only the numbers glow. I'm not sure what you consider cheap >
> but these are around $US80.00. There's a number of companies out there selling them, a quick google search should reveal many of them - I got mine from Speed Hut (
www.speedhut.com), which allowed me to customise the font, colours, logos etc. The service and time of delivery was excellent - especially since there is a large ocean between me (in NZ) and them (in the US).
I'm not sure about the US spec engines, but a popular starter mod on the 3SGE engine is to remove the airfilter box and add a pod filter (usually a cone shaped filter) to the pipe instead (allowing better air intake). This is quite an affordable mod here, so in the US where many pod filters are made, I'm guessing it'll be even cheaper.
Along with the pod filter mod is the very affordable cool air intake system, which is simply a length of 4 inch wide flexible PVC tubing (or similar) - which is then attached with ziplock ties in the engine bay with one end pointing towards the pod filter and the other end located down in an opening in the lower part of the front bumper, allowing colder air to be directed at the filter (colder air = denser air = more air = more power {insert Tim the Toolman grunt} ).
Hope this is helpful in some way >
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