Has anyone tried the basic power upgrades for 2006 1500 4x4 Suburbans?
I'm thinking about looking into options like an aftermarket air filter,
chip, synthetic oil, cat-back, etc. Fuel economy improvemets (if any)
and towing a trailer (~3500-4000 lbs.) with the truck loaded are the
If you have have tried some of these, have they been worth it? Did
they make a difference? Did you have any problems.
This will likely lanuch a firery debate but a aftermartket air filter
and cat back will not help your towing power the way you want. (a cat
back will actually hurt lower RPM power and MPG in town). Air FIlters
are more a state of mind than anything because if they really worked
that good, they would come that way from factory as they search for HP
and MPG. Your Burb likely has a 3.42 axle and on a loaded burb with a
4 k trailer on a hot day with A/C runningit is going to suck towing at
times and no exhaust, chip or filter is going to fix that regardless
of what anyone tries to tell you. That year had a optional 4.10 axle
for towing and switch to that and you will see a big difference in
perfomance and towing power and towing MPG as well. (you will think
you had a engine transplant) City MPG will likely improve and solo
highway MPG will stay about the same or may increase. OD is ,70 so a
4.10 looks like about a 2.8 axle in OD which is pretty tall for that
combo (weight, tire and engine size). If you follow GM tow ratings
with a 3.42 axle blindly you will be disapointed. A Burb is a heavy
vehicle when loaded and add a trailer with 3.42 gears and it will be a
slug at times. Also, 4.10 gears will greatly improve OD performance
which is pretty sad at times with 3.42 gears. GM uses a higher stall
converter with 5.3 and a deeper first gear in the 4L60 to make it feel
stronger on takeoff at times than it really is. THis effect is lost
once you get up to speed and in drive and a deeper rear axle helps it
I have used the K&N air filter and synthetic oil, gear lube, and
transmission fluid and have had noticably better mileage and power from all
of them on every vehicle I have had for the last 15 years. The tranny fluid
also eliminated the slow shift in the winter. I actually would like to get
a chip to soften the cold weather shift! Can't comment on the chip or
cat-back. I did a cat-back on only one vehicle and it helped in performance
and gas mileage. I haven't blown any other mufflers out so that was the
The syn oil can help MPG some but the K&N is a waste of money and it
can shorten your engine service life in dusty climates because it does
filter less. Check out lnk below.
Then why is it so popular in the dusty, silty Baja race? Why don't they
worry about blown engines and loosing the race due to all that
engine-destroyign silt entering the engine? Why have I experienced a
noticable increase in both mileage and power as soon as I changed over to
the K&N on EVERY vehicle I have owned? Why is my Toyota still going strong
after 170,000 miles, of which about 140,000 miles were on the K&N?
For one SPONSORSHIP duh..... It has been well proven by several other
independant ISO tests that they do indeed filter less. The only test
that ever show or claims them to filter as well or better is one by
K&N and I never take a manuafactures word over independant labs. You
can believe what you want but there is on one real truth and that is
they get a very marginal increase in airflow by reduced filtration but
people such as yourself want yo beilve in magic bullets and buy the BS
it hook line and sinker.
Repeatable increases and noticable/measureable increases in mileage and
power is not BS. Your blind condemnation of a proven product is. In case
you haven't figured it out yet, many racers in the Baja race are
self-supporting. They still run the K&N filter. I found your Bob site
quite interesting in it's contradiction. First it said there is not a great
reduction in air flow with paper filters and then running 2 filters for the
filtration test tremendously reduced performance. So which is it? The
filters do not have much restriction or they do.
you are wasting your breath trying to show them that all the expensive
addons are not always effective except in making the supplier richer.
their eagerness to feel more power overshadows the facts.
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