air intake

Hi everyone. I'm New to this forum. Today I built a DIY smoke machine to find the air leak on my 2008 VW Jetta 2.0. I was successful in finding a leak but dont know what part this is or how to go about fixing it. I'm guessing it's an "o" ring or something like that under the circular cap in...

As the title says I am looking for a heat shield new or used for a 2001 jetta. I cant seem to find any website selling just the heat shield.

I just bought a 2011 SEL and am looking for a cold air intake but can not find any online that fit. Does anyone know of a brand that makes one or have any other ideas for inexpensive mods to boost horsepower?

Quick question before I invest in a cold air or short ram. Can the weather ever be too cold for a cold air intake? I live in Alaska and in the winter it gets under 30 below zero. Is that too cold for a cold air intake? I was also wondering if anyone has ever heard of or used Weapon R's Secret...

I'm debating among these 3, let me know what you think? I have a jetta 2008 2.5I S. BSH Cold Air Intake http://www.namotorsports.net/detail.cfm/part_cd/BHBSH-MKV-25l Neuspeed P-Flo Air Intake kit http://www.namotorsports.net/detail.cfm/part_cd/NS65.10.99 APR Rabbit/Jetta (MKV) 2.5 Carbon...