just curious, looking thru ebay for a cold air intake for my '00 323ci e46 and noticed big price differences, from $19-$399. anyone purchase the cheap intakes($19) and will it make a big difference in my performance, compared to the $399 ones. they all state 5-10hp increase. don't really want to spend all that $$$ if i can get away with it. thanks.
								 
				 
 
		 
 
		 
 
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