So i recently bought a vr4 galant after selling my nissan 240sx I like the car a lot, but after driving it for a couple days and then noticed that i could hear an odd sound like i had a hole in my exhaust system. I looked under the car and other a small dent in my downpipe there was nothing. I went for a drive to try and figure it out and when i reached boost i noticed I was only at 9 lbs when I'm supposed to be running at 15? could it be that something came loose and thats why the car sounds and runs like crap?
any help would be great
any help would be great