Best performance mods for a '91, cheapest 1st!?
I am trying to get some more zip from my '91.
So far I am getting the Squadra chip,
I read/heard that the stock headers are good as is and better than aftermarket,
I read/heard that an electric fan will save some HP,
My mechanic told me a bigger MAF will give HP/power(?? from where-what car, store?)
Muffler-where, which one, how much, about?
What are the best performance mods I can make/get, from SIMPLE & chespest first?