Porsche 996 and 997 Turbo GT2 Slave conversion Kit
What is a GT2 Slave conversion kit?
The GT2 Slave conversion kit is:
- GT2 Master Cylinder (oem)
- GT2 Slave Cylinder (oem)
- GT2 clutch hose (oem) from body to slave cylinder
- GT2 clutch hose Union (oem) to properly couple the hose to chassis line
- GT2 Throw out fork
When your factory power assist clutch is failing, or you simply want a better pedal feel, the 996 and 997 Turbo GT2 Slave conversion Kit is a great way to fix both issues at once!
Why not use aftermarket kits?
There’s quite a few reasons to use all oem parts here. Reliability is definitely up there on the list. There are aftermarket kits partially changing parts out where some require DOT4 fluid and others Pentosin causing premature failure in some of these parts. Other kits are using non oem sizing on the pistons for the slave which can cause over extension on the throw of the pressure plate, or lack of throw and a clutch that’s not releasing properly. Too large of a slave and your pedal is very stiff as well. Although the aftermarket kits may be simple to install and don’t require transmisssion removal, they lack in the finesse that the factory parts offer when installed correctly.  After all, you purchased a Porsche and would like it to drive and feel like a Porsche, right?
What clutch fluid will I run in the GT2 Slave Conversion Kit?
This conversion requires a complete swap from Pentosin over to DOT4. The same fluid that the oem 996 GT2, 997 GT2 and others that used these parts. The DOT4 fluid is chemically compatible with all of the parts you’ll be replacing as well as the remaining parts in the chassis that you are not. The clutch reservoir and chassis lines are common between the GT2 parts and 996/997 Turbo parts. So no worries about existing parts failing due to a fluid change.
Is the GT2 Slave Conversion Kit a bolt-in or does it require machining?
Although the bell housing is the same casting on both the 996 Turbo, 997 Turbo and GT2, they have been machined for a different location for the slave cylinder.  So the casting bosses are there, the flat surface is there, it merely requires the housing to be drilled and tapped for the 8×1.25mm studs and a clearance hole for the slave piston to travel through. It’s a relatively simple machining job and can be done with hand tools and DIYers. I see California Motorsports.net offers this service on their website here.
Will the GT2 Slave conversion kit work with the Protomotive Dual Disc clutch?
Absolutely!  And it probably feels the best of any of the master/slave conversions out there. It provides the proper amount of travel and the best pedal feel for a factory like high horsepower clutch setup.
Are there any other modifications required to install the 996 and 997 Turbo GT2 Slave conversion Kit?
The factory hydraulic hoses from the clutch / power steering reservoir are no longer required and can be removed and plugged. The reservoir and pump can also be upgraded or changed out to a GT2 or tiptronic unit as they’re the same.  You can also pull the oem clutch assist / power steering pump apart and remove the splined coupler so the clutch assist pump is no longer pumping fluid. along with this the pressure and return holes can simply be plugged.
| Weight | 8 lbs |
|---|---|
| Dimensions | 12 × 10 × 6 in |
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Trevor Morris2024-04-22Todd is the ultimate godfather of Porcshe! His knowledge and informative videos have been invaluable to me as a Porsche enthusiast. I'm incredibly grateful for his expertise and guidance. I had an intermittent problem with my 996tt that has plagued the car for 6 years, no shops were able to figure out the problem. I emailed Todd and he narrowed it down within a couple emails, and sure enough he guided me to the problem and it was a simple fix in the end. Not to mention Todd's tuning skills are off the charts, as the car also traps 144mph in the 1/4 mile. Keep up the fantastic work, Todd!
Chris Roundtree2024-02-19I wanted to thank Todd at Protomotive Motorsports for going above and beyond when he helped me sort out a problem with a product that I had purchased from another vendor. Todd seems to always have the knowledge to put together the best combination of parts to make any model Porsche not only go fast or handle better, but do it reliably. He always answers the phone. In the rare event he doesn’t pick up he gets back to you within twenty four hours. Emails get responded to just as quick. I really appreciate having some like Todd available when working on any Porsche as you know he has a proven setup to satisfy any goal. Thx Chris
Antreas Smilas2024-01-22Super in every way..2 years now in ecu and tcu perfect power delivery ,reliable,and fast as mr Todd promise in number...i can say even i draggy was the same numbers as promise to achieve with this set up.
Taylor Berg-Kirkpatrick2024-01-04Todd has got to be the world's expert in forced induction Mezger Porsche engines. I've worked with a bunch of mechanics, tuners, engine builders across multiple Porsches over multiple decades... and Todd has been the most helpful and knowledgeable of the bunch. And this has even been true while working with him remotely! (I'm in CA and he's in AR.) Just by looking at my logs and hearing about my engine rebuild, he's been able to diagnose stuff that in-person mechanics have not been able to. For example, Todd was the only person looking at my car to suggest a problem with a BRV could explain some of the weird behavior... following his advice, I dug in myself... lo and behold, torn BRV diaphragm on bank 1! Wow! Further, Todd has the most experience tuning these cars of any tuner I've worked with. Tune is absolutely solid and safe. Very very confident in his work!!! Absolute strongest possible recommendation!!
N K2024-01-04Todd and his team are true professionals and they always provide excellent customer service, quality parts they sell and very reliable engine builds. This is very rare in our industry today. Great job Protomotive!
raphael wirth2023-05-29Todd est l homme de la situation…. Des difficultés ou des problèmes pour régler le problème? Todd trouve la solution malgré la distance ( je suis français) Merci à lui et son équipe pour leurs conseils … Maintenant mon 997 turbo fonctionne à merveille et est un véritable avion de chasse! Je recommande a 1000% !!! À bientôt pour d autres évolutions !!!
Adam McGregor2023-04-05I don’t think there is a better shop to shop entrust your Porsche to then Protomotive and the Knighton’s. Just search there name with 993 and you can start to get an idea of their storied history of building monster but reliable 911 Turbos! I have over 12 years and 30k miles (street, autox & track) on the Protomotive set up on my 997tt and it has never skipped a beat!
Piotr L. Pawlak2023-04-05Unfortunately they could not resolve my issue, but Todd tried very hard to find some other resolutions. He was very helpful and responsive.
B W2023-03-23Todd is by far the most professional and knowledgeable Porsche person I have ever worked with in my life and I have had many cars and have been doing this for over 20 years. He not only knows how to overcome every single problem, but also knows how to explain exactly what he is doing and brings the car to a point where it feels like stock even though it has double or triple the power. If you go anywhere else you would be making a mistake
Alex May2023-02-20The engineers at Protomotive are absolutely the best. They performed extensive work on my Porsche GT2 and I literally could not be happier. Their work, attention to detail, problem solving and communication with me were all next level. Customer service is remarkable. I had a question while at the track, on a Saturday, and Todd immediately responded to my questions. Class act.
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