I am a new Kia owner, having purchased the 2006.5 Optima last weekend.
It's the LX V6 model, and so far I love it, but have a couple of
questions for "those in the know". First - I've been reading about
cold-air intakes and chips that can bump the MPG from it's current 28
hwy to over 30, and I was wondering if anyone here has had good/bad/
indifferent luck with them and which ones to look into/avoid. Second -
on a related line, I've also been told that chips can void a warranty
(I still have nearly 50,000 miles left on the 60,000 mile warranty, so
I'd rather not do that).
Thanks in advance!
Matt
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