Rep Power: 0

I have a 2006 Civic EX and i got a cold air intake in it and the tube itself is a 3 inch to a 2 1/2 to the throttle body. After i put it on it had a high tendancy to stall out when i was slowing down or coming to a complete stop. I ended up getting rid of the old iridium plugs and put in double platnium plugs. The old ones had a gapping ranging from 0.23-0.44. i gapped the new ones at 0.44 and it has helped some but it still wants to stall out if i am slowing down and down shifiting. Any one got any ideas as to how to fix this

 
Rep Power: 811

i think the intake pipe is too large, which causes the air to flow more slowly. the 2006 uses a MAF sensor and it may not be reading enough air at idle. are there any air leaks from the intake?

 
Rep Power: 0

their are none its a solid 3 inch to 2 1/2 inch polished tube