Mac Prochamber: Whining high pitch after 2 weeks?

[2002BLKGT]

I noticed a higher pitched exhaust note while driving home last night. The prochamber was installed last Saturday. How can I tell if I have an exhaust leak? It may be that the sound was always there, but I think I would not have noticed it so quickly last night. Anyone?

 

[2002BLKGT]

bump

I noticed a higher pitched exhaust note while driving home last night. The prochamber was installed last Saturday. How can I tell if I have an exhaust leak? It may be that the sound was always there, but I think I would not have noticed it so quickly last night. Anyone?

ttt