​​​​​​​You mean computer tuning right? Ive got a 2.4 and didnt think there was anything available for that engine.

 

https://www.chevyhhr.net/forums/2-4l...bstitue-60474/

 

The promo sounds promising but I assume it would work just as well on a car with the stock air intake/filter system so that would mean that the custom intake systems are for the looks and the sound not that theres anything wrong with that.

 

If that's what you believe...

 

I do have an open mind, if there are non biased before and after dyno results from someone not selling a cai system or filter that show a torque and hp increase after installing the cai system on an hhr.

 

Sorry... I'm not wealthy enough for dyno sessions.

 

Me either 😄 im also not prepared to spend $250 for someone to adjust my ecm. Its all good. We all like what we like. I think your the ine with the GM performance intake right? I do love the way that looks and if I saw one for sale at a price within reason Id be tempted

 

19159206 is the part number, still available

https://www.wholesalegmpartsonline.c.../19159206.html

 

Yikes thats pricey!

 

So is the K&N FIPK

https://offroadwarehouse.com/i-10154...r-l4-2-4l.html