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why not just buy one ?

and what turbo do you have that is so cheap it needs the outlet machined?

It's Garrett Im not going to try explain why I just need a place to get a gasket cut out and need the rear housing machined

pretty much any decent machine shop and many workshops can mill the surface flat.

For gasket I would always buy one....surely there is something available somewhere for the turbo outlet you have.

If it fits, the Nissan factory ones are excellent quality

It's Garrett Im not going to try explain why I just need a place to get a gasket cut out and need the rear housing machined

rear housing machined out?

If so i hope you understand what this will do to the turbo's...

rear housing machined out?

If so i hope you understand what this will do to the turbo's...

Yer what's wrong with that?

I have to get a gasket cut becuase Im running twin screamers of the back of the turbos and for them to seal right I need gaskets cut

The Garrett -5's are designed and made as they are.

Increasing the rear housing will just increase lag for no extra power.

The -5s are do not suffer from any restriction in the rear housing and will do 380rwkw in a blink of an eye.

I guess the next questions are

1. Who's told you that machining the rear is required?

2. And why?

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