Tech's opinion of cold air intake kit

[Tom Meyer]

On are 2004 cavalier dirt track car on a wheel dyno. We started with a cold air intake that picked up air at the stock location with a K&N stile filter. We would gain 5 HP by taking it off at the TB, to make a long story short we ended up with a straight pipe that was a foot long with a air filter from a 97 chevy PU that lost 4/10th of a hp. this is on a 150 hp 4 cly motor. Tom