Had the car retuned today and it's 337rwkw at 15 psi :-) gotta say I'm more then happy with it comes on boost like a dirty whore haha :-) thanks all for your advice and help!!

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Nice work. A turbo mod must be next on the shopping list for sure. Or at least a boost guage.

Congrats on your power.

I wouldnt be bumping it up to 16psi on a stock bottom end.. sorry *Beep*..

I think 14psi would be a safe option in winter as a street tune as you are going to run around 1psi more in this colder weather now on the street.

a 16psi tune for dyno days and drags is ok, but I wouldnt risk it on the streets everyday.

your gearbox will give up the ghost in a hurry. if you can pay for that and a rebuild... go nuts!!!!

im on my 6th 4speed!

I would also be getting turbo modified to control boost unless you have done that already...

I would be expecting around 330rwkw tops.

6th 4 Spd? when are you going to bite the bullet and go for something stronger?

I made 309.8rwkw with pretty much the same mods... less cat Fair well cat tomorrow and retune straight after