63-3515 is for a Honda Ridgeline per the K&N book. Do not order this number!

2009 HHR's
If you want a 2.4 liter the K&N number is 63-3056 Pending TBA
If you want a 2.0 Liter the K&N number is 63-3069 Pending TBA

2007-06 2.4 HHR RPM is 5325!
57-3056 Available and it may be the same kit just with the 50 state legal requirements. They change the first numbers to show they are good for California.

As for why they make the power at or near the redline, that is where it is at on this engine.

More air more fuel more RPM = more power. The power band will vary a little with the engine that is tested. The Eco make more power high up in the range.

By the way the HHR system is tested at 5325 RPM. Not the number questioned.

The bottom line is the intake on a 2.4 is not a bad system. They can gain a little with extra flow but not as much as they can with some really poor intakes on some cars.

Anytime you can bolt on real HP it is a good deal. K&N numbers are legit vs many others in the industry that make claims they make X amount of power. I can tell you many claims are very liberal at best.

Most K&N numbers are taken on a dyno and the RPM's will be between 4,500 for some American V8's to over 7,000 RPM on a Honda.

 

I just did a quick search. Thanks for clearing that up.

I am going to edit my thread because you know there will be someone that orders it.

You search the p/n k&n 63-3069 on Yahoo and the Amazon link came up. Total BS and I never gave it a second glance.

BTW my SS is at the dealer right now getting the brak Vac pump installed. Two weeks to get the parts.

 

Not a problem I just hated to see someone get the wrong part.

Wow two weeks to get parts!!!

I was expecting that when I took mine in to get it and they had it in stock.

Once I get the word if the kit is avaialble I will add it to the Summit web site when I able.

 

I was told the same when the stg kit was installed. The dealer told me I would get a letter when it arrives and can schedule the install. (3 hrs plus) He said he would put me in a loaner and I could come back the next day. That's why they have my trust and service.

 

Mine would have been a one day deal if they did not have a problem with the connetecter plug in the junction box under the hood. It too them over a week to get a part that had no part number.

But even with the delay the dealer did a good job as it was not their fault GM did not sell this connecter seperatly. They gave me a rental and I drove it nearly two weeks while my car sat inside during two of the worst snowy weeks of the winter.

Now that they installed my Stage kit and kept to the agreed 1.2 hours [it took longer] I will keep my business there.

If you find a good dealer hang on to them. There are not many left.

 

I got one! PM me if you want one made

 

that is why i hate & boycott k&n !!!!

 

I thought hahn said they would be out from them NLT MARCH???? WTF?

 

There really is not room to add a decent sized air filter in the inner fender area, so the only real approach so far that would make any sense is to retain the airbox location and make it larger, but still use cold air intake from the fender well area. The folks that think an open element hot-air intake in any location under the hood makes more power under most conditions are, "ill-informed" to put it kindly. There are some minor mods you can make to the inlet to the box to smooth out the airflow, but doubt that you would see a measurable difference on the dyno.

 

I like that air intake system and other mods.