This stealthy 2008 midnight blue 997TT might look stock on the outside but on the inside she now packs quite a punch. She originally came in for a Stage 1 performance boost and whilst a significant increase it was just a taste of what was to come about 3 weeks later: a full-on EVT700 conversion.

Up on the lift she goes and off comes the rear appron:


Off come the stock intercoolers and fender liners:


Speaking of intercoolers here is the EVOMS unit by comparison with improved flow due to the end tanks and more efficient cores:


A close-up of the enlarged and improved flowing end tanks:


And now mounted into the factory "cages":


Back to the car and it's time to remove the lines and turbos:


Draining the coolant out:


Out come the factory plugs:


We also install EVOMS' recommended spark plugs:


And then the EVT700 turbos go on:


And then the EVOMS Clubsport headers:


The intercoolers now on the car and with the upgraded hose kit:


Factory-like fitment:


With the Tubi Street exhaust installed:


Time to replace the stock pulley:


Off it comes:


On goes the EVOMS unit:


It's lighter as well:


With the increased torque from the EVT700, the stock clutch isn't going to last so it's time for our Stage II upgrade. Out comes the transmission:


And back to the car:


The new clutch is going to feel just like a GT3 factory version thanks to the installation of the EVO GT2 Slave conversion kit. As on the 996TT's of old the 997TT's hydraulic clutch assist is prone to failure and issues. A first clue is always the reservoir which leaks:


Now all back together again and you wouldn't even know...


Just your classic "stock" looking 997TT ready to go home but with a little extra under her rear end:



So if you see a stock-looking 997TT in the Bay Area don't mess with her!

 

Nice and stealthy!!!

 

the owner must drive have the most devilish grin when driving that thing...nice work guys

 

what a sleeper!!!

 

That owners gonna have a lot of fun! Ask me how I know

 

congrats on the build Seattlebum, excellent setup

-quick question for the sharkwerks guys, how long is it approx. to do a clutch upgrade? Im gonna do mine in the near future and was just wondering what to expect, thanks in advance.

 

Good built!

 

Nice!

What does EVOMS' recommended for plugs? Is it for the 700 kit or just a general recommendation when changing plugs?

 

Very nice work Sharkwerks. Looks like some of the same upgrades you will be performing on my 997 turbo once I get my butt in gear and get you the car

 

Awesome - so rare to see a stock-style TT that's undergone such a transformation!
I love it!!!

 

I think he was pretty stoked judging by the grin he had when we went for a test drive
He's going to remove the turbo badge too... Quite a little sleeper!
Yup.. I'm liking this idea
Hehe no kidding!
Thanks and it's a good day to do the clutch. Plus a few more hours to do the GT2 slave conversion. The transmission comes out.
Thank you!
Denso units but you can still use stock too.
It is these days eh? I kind of like the whole under-cover 700 routine