What is the difference between a stage 3 intake and a regular intake?? and what the hell is stage 4??

this is confusing?? which one is a better deal...based off doctorspeed website...i heard that stage 3 is better in cold but is this same for summer too??

HELP!

stage 2 is a short ram: you'll see the filter when you pop the hood.

stage 3 is a cold air intake: the filter goes down behind the headlight.

stage 4 replaces the entire intake tubing from the throttle to the MAF.

No intake is going to be "good" in the summer... you'll still notice a difference but the air outside is hot. Stage 3 however will definatly help and IMHO is the better deal!