Any recommendations on a cold air intake, for a stock 2014 convertible mustang V6? with out needing a tune. shorty headers might come later.
I'd say go with all the same brand to get the most possible gains. Since the BBK headers are the most common and you said you will get headers later I'd use BBK Cai. American muscle has their Cai labeled as to whether a tune is required for that specific part or not. Honestly I'd start with getting a tuner from American muscle simply for the free tunes for life. That way every time you add something else you can get a tune revision to get you the most possible gains from that specific add on. I however went with what got me the most bang for the buck and parts that complimented or helped all the other parts. What I did was get it all at once and put it all in at the same time. I went with many different companies, brands etc getting the cheapest price for each part, but still being the same part American muscle sells. My add-ons are these: SCT X4 tuner, BBK larger throttle body, Roush Cai, Accel ignition coils, the most expensive plugs I could find, a cooler thermostat, an extra cooling fan. Those are the only engine upgrades I've done and did all the work myself, spent less than 2000 and gained about 60hp.
You can install it without a tune yes, but there's also American muscle website that specifies what items do or do not need a tune. Just look at their website, they have lots of info on most of their stock. Pick any that you want as long as it specifically states " no tune needed "
I have read anywhere from 4-7 hp added with a no tune cai. I've read everywhere from 17 to 22 extra hp with a tune. All I know is when I added a no tune required cai (C&L) with a 93 octane tune from Evolution Performance (Jon Lund) back in August 2010 on my 2011 v6 with 3.31 gears and an automatic, my 0 to 60 times went from a 6.1-6.2 seconds down to 5.6-5.7 seconds. Looks like a good 20 wheel horsepower to me :) Once you buy a SCT hand held tuner you can buy tunes from Bama or MPT and several other places. I'm running MPT tunes now and they cost $100 each :)