Technical How can i upgrade my gearbox 1.6 mJTD punto evo

[Bouff]

so i found out i have either a c635 gearbox or a c630 gearbox either way ones limited to 350nm and the other 320nm considering my car came stock with 320nm that is not ideal lol.
I have a 2011 Fiat punto evo sporting 1.6 diesel

2V-1.6TD -120CV-E5-SPORT -3P.GD.6M-RU/I

19943F351870

This is a rare variant of the punto evo as far as im aware but i was wondering if there was anyway that i would be able to upgrade my gearbox to be able to handle more?

if anyone has owned or owns one of these variants please let me know did you guys mod it keep it as is what did you do?

is there anything i can do to any of this car to make it handle more power or am i bottlenecked by various componants?

Thanks for the help in advance!

 

[Bigsy88888]

so i found out i have either a c635 gearbox or a c630 gearbox either way ones limited to 350nm and the other 320nm considering my car came stock with 320nm that is not ideal lol.
I have a 2011 Fiat punto evo sporting 1.6 diesel

2V-1.6TD -120CV-E5-SPORT -3P.GD.6M-RU/I

19943F351870

This is a rare variant of the punto evo as far as im aware but i was wondering if there was anyway that i would be able to upgrade my gearbox to be able to handle more?

if anyone has owned or owns one of these variants please let me know did you guys mod it keep it as is what did you do?

is there anything i can do to any of this car to make it handle more power or am i bottlenecked by various componants?

Thanks for the help in advance!

I've put a bigger intercooler on mine, dpf
delete, egr delete and quantum map with stance coilovers pulls like a train. Had issues along the way but back up and running. Must admit gearbox not the best but I'm no mechanic

 

[Bigsy88888]

I've put a bigger intercooler on mine, dpf
delete, egr delete and quantum map with stance coilovers pulls like a train. Had issues along the way but back up and running. Must admit gearbox not the best but I'm no mechanic

 

[Bigsy88888]

Cold air induction too