Urgent! Help
 

So, my car has a complete exhaust system & air intake. For some reason now I don't get that horse power I used to get. I can feel it in my car nor does it make that smooth exhaust sound. I don't know what wrong can anybody help! I'm assuming the filter of the air intake! :icon43::confused2:

Check for vacuum leaks / hoses that didn't get put back in correctly (especially if you added a plenum spacer and/or MREV2) and check for exhaust leaks. Do the ECU reset and TB re-learn (search, Motordyne's MREV2 install guide has the procedure for the resets).

It probably also needs a tune but you shouldn't have obviously lost power so start with the above first. If all else fails post a video so we can see what sounds you're getting, that would help us help.

Assuming isn't a word that belongs in the English language nor should it be used! :OHBOY: If you're not throwing error codes then recheck the install of your intake. What type intake did you install, z-tube or pop up charger? Are you aware that a metal intake will cause you loss of whp in hot weather? A little more information would be helpful....Gary