My K&N cold air intake is now installed.Took it out for a test run and I really like the results.I was afraid it would make too much noise,but with normal around town driving it sounds great ,not loud at all.When you step on it the sound is very acceptable and you can feel the extra power.I have a couple questions for anyone that can help me .Is there a special way of readjusting the computer now that has been installed or will the computer just readjust by itself and when I took it out, the traction control light came on,so I stopped and turned of the engine for a couple for minutes and restarted and the light went out,will this leave a code in the computer,please help me on this ,I can use all the help I can get ,thanks.

 

pics pics . as for computer, try to disconnect the battery for about 1-2 hours and then reconnect and run your HHR i think this was the computer will see the more airflow coming in just my

 

Check your manual. Just pull the fuse on your ECM (#41 on 2007).
Then plug it back in and start driving. I did the K&N, and the Magnaflow Exhuast, and I see about 3 MPG more with city driving.
The combination of the two have a great sound too. I have pictures in Gallery posted on my mods.

 

Hey I thought someone out there could help me with these problems,I can`t figure why the traction contol light comes on since I installed the Cold Air.Another observation ,when I installed the K&N there is a gap where the tube enters the box,I find this to be counter-productive because the intake will suck in hot air from the engine,so I sealed around the tube I hope this helps others with this system,and if you think it`s a mistake let me know .I would post a picture if someone could tell me how to add pictures to my post(I`m not a computer whiz as you can see)

 

HHRyup...
When you install the tube and filter, there is a gap all around the tube.
I can't address its value, but I have no complaints with mine.
I would think there is a good balance of cold as well as warm going into the box. Maybe they should have made a big rubber gasket to go around the tube during assembly to seal that off.

I don't have the Traction Control issue you described.
Maybe you unplugged something by accident during the install?

I also reset my ECM by pulling the fuse and re-inserting.

Let us know what you find out.
Keith

 

I don't know about the gap... I would probably close it off with some sort of gasket, though. The more cold air, the better!

 

any REAL numbers on any gains with this K&N mod?

 

You don't need to reset the computer unless you have a light on. The PCM will "learn" the new airflow and make the adjustments with a few miles.

Resetting does that, resets to factory specs. Drive and have fun.

 

9.33 HP @ 5325 RPM according to K&N. I don't think anyone has every dyno'd one for personal use.

http://www.kandn.com/dynocharts/63-3056.pdf

 

So less than half that to the wheels.

GM truck guys have seen 4.5 RWHP on a dyno with the K&N FIPK system installed over the OEM unit. K&N Claims 15 - at the motor I assume.