Bolt on tuning parts for 997 turbo

[steffg60]

Hi,

I've had an exhaust bypass fitted this week which is a big improvement to my 997 turbo s making the car sound much sportier .
However it's also now making me think of tuning the car further.
I'm planning on adding sports cats next month but wondering what other bolt on options are avaible?
My warranty is due later this year and I'll will look to renew therefore put the car back to standard for that hence wondering what bolt options are available
Obviously a remap would be the best option but I really don't want to void my warranty.