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you don't need to spend anymore than $30 for an intake. the 1.8 repsinds very well to intake modifications. i just have a cone filter on the MAF and viola! worth every penny. i saw a dyno of a before and after doing that and that particular car gained around 7/10 ft/lbs of torque and like 7 hp. his HP/trq numbers were almost the same. not sure of exhaust stuff. i've seen no hard evidence yet
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