I have a 2006 cobalt ss sc and I'm having a boost issue. I replaced fuel filter and plugs . I'm only pushing 9-10 lbs wot. The car feels sluggish wot until I reach around 4k rpm. Can you guys help figure it out . Thank

 

any codes and what mileage?

 

Nope no codes and 120000 miles thanks for the replay

 

you replaced the plugs and fuel filter after you realized the boost was a little lower than normal or it started happening after you did plugs and filter?

 

Before , thats why I thougth it needed to be replaced. Any ideas ?

 

Not trying to sound like a dick, but you used the correct heat range plug and gapped them correctly?

 

It's all good man but yes and I gapped them at .35

 

Make sure you don't have a plugged air filter or a leak at the IM gasket or the blower to IM

 

Good stuff Thanks , I just replaced cai .is there any sort of leak test I can perform

 

this^^^. Make sure the air filter is in the correct way also.

 

What CAI did you install?