If you have the I4, don't bother if you're looking for performance. There are several available. Check out the below link. You may consider getting the P2R downpipe and the Greddy exhaust? Would be a slight improvement, and look great.
Performance chips are scams...very rarely have I ever read of one actually increasing performance. Most do nothing, while others can even hurt your car. If you want real performance upgrades start looking at exhaust modifications. A good exhaust not only sounds good, but can give you a little more umph. Double bonus.