Originally Posted by Motor City Madman
I can get the AR 103s from Advance Auto Parts online for about $9 with a 20% discount coupon and pick them up at my local store and they are in stock. Bottom line, can you actually feel this 4-5 hp increase? I have a stock '09 with only 11k miles on it. If there is a somewhat noticable difference, then I'd do it. What do you think?
Is that $9 for all 4? I show them on Advance.com for $3.49 each...
"A country boy can survive"
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'11 Mazda 3