air intake

On my 2002 1500 5.3 I installed an AFE air filter and removed the MAF screen. Why does the air intake hose have that big section down underneth,looks like a walrus snout? could I tape off that hole or shouldI buy a Airaid tube? I see you were talking about a silincer but mine is not something you can take off and plug up.

go to www.sshotrods.com/performance/gmtruck/
if you want to modify your factory air intake

If you want to modify your air intake, I suggest that you look into K&N FIPK. They come with everything you need, eliminates ALL the guess work.

I agree with gtmud. I put an K&N FIPK on my 01 with the 5.3 and noticed immediate gain in hp at the wheels and combinded with removing the MAF screen, about 2 mpg better than stock.

I got one at Auto Zone today! It was cheaper than I thought, 189.99 and they gave me a 10% military discount on top of that! I was so excited that I made an appointment to have a Flowmaster 52 installed Friday. I guess I should start thinking about a 160deg thermostat and a Hypertech!!! How hard is the thermostat to change? ANy advice? Do you have to buy that Dexcool stuff from the delaer?

Any place sells dex cool

yeah, but its pricey...like 7-10 $ a gallon

Even though its expensive, you want to put the Dexicool, back into your system. Dexicool has a differant chemical make up than the standard Prestone anti-freeze. If your just changing your T-stat, than you should need only a gallon, don't need to drain your entire Radiator, just below your top radiator hose. Look into the JET Chips too, I've heard good things.

I installed my K&N FIPK gen II yesterday and drove it for the first full day (80+ miles) today. I definitely sense an increase in throttle response and it seems to run high speeds (70 @ 2000rpm) at lower rpms. I now understand why the stock/factory box has the "muffler" on it. This thing really ROARS when you step on the gas peddle... it is so loud I though maybe I had a leak but can not find one anywhere. Is this common for the rest of you K&N folks out there?

Any real advantage to removing the MAF screen? Does it void any factory warranty (not that I have much left)?

Tommorow I have my Flowmaster 50 installed. Can't wait to hear the new sound!

LEts, hear about how the Flow master works with the K&N. I have a 91 4.3ltr and was thinking of getting a Flowmaster muffler on it. Oh, the "ROAR" is a standard thing, I have the GEN II on my 00'XJ and I hear that "ROAR" everytime I get into it. PErsonally, I like it, and the wife doesn't seem to mind it.POWER!!!!!!!!

All I did for my air intake (I have a 1997 K1500 Z71 with the 5.7 liter) was put on a replacement K&N airfilter and took the top off the airbox. And I also just put on a Flowmaster 40 Delta flow, this truck has soooooo much more power with this combo. Does anybody have any suggestions on how I can get more power out of my engine without spending to much money?? It is a Vortec 5.7.