Louder injectors after chip

[MXR597]

So I ordered my chip from tbichips and since then I can hear my injectors (I think) when i'm just barely on the throttle. I say I think because around the same time I also installed a louder turndown exhaust but didn't notice it till I installed the chip. The truck drives great and it doesn't seem to be a problem it just seems louder than before. Any ideas?

1993 5.0L TBI
Open Element Air Cleaner
12 inch glasspack turndown after cab