Pros & cons of a stage 1 remap 2014 A3 1.4

Hi all

First post on here! Just bought a 1.4 2014 A3 with 29k miles on the clock. All my previous cars have been 1.7-2.0 TDi’s (160BHP+). 
 

My previous car was a 1.7CDTi astra. Had that mapped at around 95k miles and it highlighted a very week clutch and resulted in a new one and a new flywheel. Instantly regretted the stage 1 map....

Has anyone mapped their 1.4? Is there anything I need to worry about? It’s only on 29k miles with full Audi dealership service history and I got another 2 years Audi dealership service history with the purchase. I can’t imagine the clutch going but it will probably go to around 160BHP from its current 123BHP. 
 

any advise/recommendations? Not sure if I would need to change the glow plugs to cooler ones as there will be more heat from a mapped engine. 
 

any other ways to improve the power as well? This is my first petrol but I’ve heard about cone  filters ?