Sorry if repost,..... What is the best cai?

Originally Posted by XwChriswX

To OP: The term 'Best' when it comes to the intakes that get represented here is subjective.

Each of them have their pros/cons and several members have stepped up to give their reviews of the respective Intakes they have purchased. The other sub-folder in this section "Intakes/Exhausts" is where most of those will be found.

For a basic break down:

Stillen (Gen III's):
Pros: Good gains, Air from outside the engine bay
Cons: Removing front bumper for install/maintenance, cost, some cutting req

Injen:
Pros: Moderate gains, moderate price, one piece tubing
Cons: Modding of Washer Fluid tank, Air from inside engine bay, (some members) have experienced hydrolocking

AEM:
Pros: One piece tubing, large diameter tubing
Cons: Air from inside engine bay, ECU tricking harness

JWT Pop Chargers:
Pros: Increased flow, easy to access/clean filters
Cons: Takes air from inside engine bay, only replaces stock filters, not stock filter plastic pipes

Top Secret Intake:
Pros: Increased flow, Easy to access/clean filters
Cons: Expensive, lower gains that long tube intakes

Those are the most commonly discussed intakes on here, there are others out there, and you can always just do K&N Drop Ins and those will give you slight gains for low costs. Whatever works best for you is based on what your looking for vs cost. Hope this helps with your search and if not, the search button is your friend!