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Give me your opinion on the best value, most efficient bolt-on air filter for 2004 C5. Blackwing or Halltech or Granatelli or other? I've seen the Halltech Stinger on e-bay w/ airbridge. Do the others require an aftermarket airbridge to be most efficient and add most HP? Is the single element like the Blackwing and Halltech better than the dual cone type filters?
From: In a parallel universe. Currently own 2014 Stingray Coupe.
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You're going to get a lot of opinions on this one. I have the Blackwing and like it, but the Halltech Stinger is a good choice too. A more expensive option is to go with the Vararam - requires more install time, but provides a nice gain.