How can we be sure our
order will be filled accurately with the right
part for the vehicle?
Our web site was designed to allow you
select the correct application for your vehicle.
To help us out,
please always include a note with your PayPal payment telling us
what year, vehicle make & model, and which
engine you have. That way we
can then contact you if we have any questions.
Why is no air filter included with your performance
Air Doc Intakes is not an air filter manufacturer, and this allows you, the
consumer to select which performance air filter you would prefer to use with
your system by purchasing it from your own most convenient source. This takes us
out of the oiled gauze vs foam vs synthetic debate, and lets you decide which filter is best
for you. If you already have replacement high flow replacement filter, you can
add our system without spending money on a second (included) filter you would not need.
Why not replace the factory air filter box with something else, or get rid of
it, like other CAI brands do?
Our systems use a "closed" system design. In use with trucks that see exposure
to extreme conditions including deep water, mud, and powder snow, the air filter
element is enclosed in the factory box and not exposed to moisture that can clog
the intake flow. Unlike an "open" design, the air is brought in from through the
inner fender inlet snorkel from outside the under-hood heated environment. The
large diameter Air Doc Intake pipe maintains maximum smooth flow of the intake
charge by replacing the stock throttle body resonator box and the accordion
style stock connecter hoses drawing in outside air. Often times calling an open
system a cold air intake is entirely inaccurate by their very nature. It is
possible in specific applications to increase the initial intake volume by
simply having the filter on the end of a tube.
However, you must consider the source of the air being drawn in. Sticking a
filter on the end of a pipe in the engine compartment results in drawing in air
that has been heated by the engine, exhaust manifold, post radiator air, and
other hot objects under the hood. More warm air does not make power, a quick
moving volume of cool air does. This is why many competitors build contraptions
of all sorts to attempt to barricade the filter from the engine heat, but note that
they cannot make a tight seal under any circumstance.
Do the Air Doc Intake systems retain all
factory emission connections?
Yes, all of our intake systems retain all
connections for all vehicles covered by our
Are Air Doc Intake systems easy to
Absolutely! Every kit comes with detailed
installation instructions with photographs to
make it possible for a smooth and simple
install, require only minimal basic tools, and
are designed so that any enthusiast, novice to
the experienced veteran, can install one on
their vehicle with no problems. Most will find
the install takes less than 30 minutes.
have any questions after receiving your Air Doc
Intake and reviewing the instructions, contact
and we will be glad to assist you.
What if I cannot seem to get the T Bolt Clamp
in place/nut started?
Use a channel lock pliers an to carefully apply
closing pressure on the T bolt and barrel (the
tube shaped barrel that the bolt pokes through)
and then pinch the clamp tighter/firmer than
your fingers can do alone, and then start the nut.
Does installing an Air Doc Intake require any
permanent modification to my vehicle that should
be a concern at the end of a lease or trade in?
No. (The only permanent modification with the
H367 system for 2005/07 models is drilling one
1/8" hole in the plastic flange of the air
filter box where the new Air Doc inlet snorkel
is anchored by a single #6 screw. When the screw
is removed, and the stock snorkel is
re-installed this hole is not easily visible,
and has no impact on the function of the stock
The H308, H3A, H2, and GM02 models require
absolutely no irreversible modifications.
Will the Air Doc Intake work with a throttle
body spacer installed?
Our official answer is: NO. Even that
small spacer from various manufacturers changes
the angel of relationship between the throttle
body inlet and the air filter box outlet and/or
results in the Air Doc pipe being too long, and
many times will prevent our systems from being
properly installed. We have had two customers
try this without success, I have not personally
attempted to do this myself, but feel
comfortable with the information these customers
relayed to me. They BOTH removed the TB spacer
and reported seeing more improvement running the
Air Doc Intake.
However, there are at least two customers that
are running the Airaid TB spacer on their 2007
H3s, and a different brand spacer on a 2008 H3,
and have reported no difficulty with the
installation of the Air Doc Intake.
Why a steel pipe and not plastic, polished
stainless or aluminum?
The material used has very little effect upon
intake performance itself, but air flow is
critical to increased performance.
We have extensive years of experience with steel
in all facets of applications, automotive,
motorcycle, industrial, and commercial and
simply find it the best material for strength
and durability, when done correctly. Below is our
analysis regarding truck intakes.
Plastic. Cons: Can break, and even melt very
easily. Certain intake makers using plastic
extensively have had recalls on their products
because of cracks or small pieces breaking off
and getting sucked into the TB. This is from our
competitorsí own information. Plus we think that
plastic looks cheap, looks even worse over time,
and definitely has mass production written all
over it. Pros: Plastic has a slightly better
thermal properties and to a small degree better
reduces heat absorption. No corrosion and has
unlimited shaping properties/can be molded.
Aluminum: Cons: Expensive when polished, not as
strong or damage resistant as steel, increased
thermal absorption, and can corrode over
extended time. More difficult to paint or finish
than steel. Pros: Requires no finish, and is
significantly lighter than steel as well as
easier to tool/machine. Stronger and more
durable than most plastic.
Stainless. Cons: Very expensive material, cost
have increased dramatically this year alone. In
this application can discolor over time with
minimal heat. Some heat absorption. Pros:
Insignificant corrosion, can be easily painted
and is very strong placing the only possible
failure on clamps or couplers.
Steel. Cons: Needs sealing/painting to avoid
corrosion/rust, and finish could potentially
peal or flake with same heat absorption as
stainless. Pros: Less expensive, equally durable
and as strong a material as stainless, cheaper
to tool and weld as polishing is removed from
the equation. When properly finished corrosion
is completely controlled and less expensive than
polishing other metals. Can easily be repainted.
What can I expect if I add an Air Doc Intake
to my vehicle?
You will not transform an I5 into a V8. Our
system can and will do everything and more than
our competitor systems, while screaming overkill
all the while. We know what dyno results are in
RWD Canyons, our systems work. We have no AWD
dyno data as the last AWD dyno shop in the
Detroit area went out of business long ago, but
we expect 7-12 HP and similar torque at the
wheels by adding an Air Doc Intake with high
flow after market filter. You can increase this
performance improvement by adding a CAT back
exhaust system, and getting your PCM tuned.
With the new Alpha/LH8 V8, H2, and GM full sized truck
models now available you can expect a bit more
as all 8 cylinders are breathing more
efficiently and all making more power. With a V8
it is reasonable to expect 10-16 HP and similar
torque. We have made every effort to have our
systems make much of their power starting in the
mid range where it can be used.
You should also be able to measure a slight
increase in fuel economy with normal driving.
Does an Air Doc Intake system increase noise
There is definitely a change in intake sound
when under throttle, but in our opinion, the
enthusiasts that are interested in this product
will not find it objectionable or offensive.
When driving normally it is nearly identical in
sound to a stock system. When at wide open
throttle, you will hear it. It is much quieter
than an open system, but gets the job done
You may also notice a different sounding exhaust
note with our intakes installed. More air in
means more air out.
If I contact you at your web site or make
This one is simple. We do not share your
information with anyone. Your email, payment and
contact information stays only with us and will
not be sold or given away ever!
How do you ship an order?
We ship every morning Mon. - Sat. by U.S.
Postal Service, insured. We do not use
tracking numbers as a loss would be covered
by the insurance, and we will help you with your
loss claim, should there ever be one. If you are
outside the U.S., please contact us for a
shipping quote as our regular posted rates on
our web site are not for international shipping
Is PayPal the only payment option to make a
While PayPal is our preferred method of
payment, we will accept U.S. Post Office or a
major U.S. Bank money orders, and can even do a
credit card by phone if you just have to.
Contact us through our web site with your