Niether, buy a throttle pipe from Densecharger and use your air box as a heat shield then drop a K&N all together it'll cost you about $100
Steeda CAI $200
Mac CAI $179
Just buy the the Densecharget CAI TB to fenderwell its like $200 if that and it will give you the best performance gains, both the MAC and Steeda are chrome and will heat up faster than the plastic Densecharger.
i had the mac( old one) the type that was like the dence charger. fender well type. it was terrible! made the car hesitate a bit in every gear. once the car got going it seemed to be a small pick up over stock. however it had the 90% bend that the d/c also has and i hear that some people have lost power because of that.
i got the steeda one and it looks awsome compaired to the other.
i would say i got a decent gain over stock and a small gain over the mac. cant really tell but the car runs smoother now and has no more hesitation.
i think it was because of the bend in the old pipe, car wasnt breathing right.
I like my Mac Straight Shot.
Guess it all comes down to what you want your engine bay to look like.
HP improvements....well, I felt a nice SOTP improvement with my Straight Shot, no dyno #s though.
Engine bay bling factor is really nice though. Looks great for shows and gets a lot of compliments