I am new to this car, having owned mine for only a few weeks, but if I understand this right the stock computer program will learn performance mods and bring it back to factory? So does the 9hp claim by K&N only hold true if you have the Stage 1 or aftermarket tune?

 

Never take the claim of a company as word. every vehicle is going to be different. I don't really look to K&N as more hp rather than having 1 filter for the life of the car which in AZ it's the best investment. K&N filter made no difference on my 1998 Z28 on the dyno. Even after the mods it mad no difference.

However, I did notice a difference on the HHR with just the filter but the stock one was dirty and with 16000+ miles probably was just bad anyways. So it gave back what I was losing, but like I said, here in AZ, it is just wise to have these filters on our cars.

 

Thanks for all the recent orders...

 

I talked to a tech at K&N. He said he was not familiar with the GM upgrade. The K&N kit was designed for a stock HHR SS. He told me that it might actually rob some power and throw codes. I was wondering if anyone else has heard this; or is anyone currently running one now with the GM upgrade and could shed a little light on this? I would like to run the K&N, but I also don't want any problems or loss of power. Thanks.

 

I'm running the K&N filter without there piping and cover with 3" Turbo back exhaust with no problems what so ever.

 

We have more in stock, remember if you find it lower somewhere else just PM us...

 

I don't see the need for a 250+ dollar kit when the replacement filter is less then 50. Its not going to be that much better, and if you have a vehicle under warrenty all the dealer will do is use it as an excuse if somthing goes wrong with it. (I can't say I blame them either)

Also, don't worry Aaron Im getting that sway bar from you next!