I finally got my FI catback exhaust and lower downpipe installed yesterday (loving it so far!). However, I've noticed when going over certain bumps there seems to be some rattling going on in the back. Has anyone else experienced this or know what might be causing it? I tried googling it some...
Question for everyone running lower downpipes. Have you seen any horsepower gains. If you had your car tuned what was the base hp and torque before tune.
Let’s get into specifics!
I just installed lower downpipes and My 0-60 hasn’t changed.
2.5 inch exhaust all the way through.