Category
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- 911 Carrera / 930 Turbo (1978-1989)
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- 993 Turbo 993 Carrera (1994-1998)
- 996 Turbo / GT2 / GT3-1 / 996 Carrera / 986 Boxster
- 997 Turbo / GT2 / GT2RS / GT3-2 / 997 Carrera / 987 Boxster
- 991 Turbo / GT2RS / GT3-3 / Carrera / Cayman / GT4 / 718 / 981 Boxster
- 992 Turbo Carrera GT3 GT4
- Panamera (970/971)
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This is the transcript from our YOUTUBE video: POV: The Ultimate Porsche 911 Carrera Turbosystem Upgrade: Protomotive Stage 4
Welcome to our latest project at Products Inc., where we are putting the finishing touches on an extraordinary Twin Turbo System for Porsche cars. In this blog post, we will delve into the details of this custom fabbed exhaust, designed specifically for a Carson Coffee style car.
Custom Fabbed Twin Turbo System
The centerpiece of this Twin Turbo System is the unique center-out TT3 exit, specially crafted for the Carson Coffee car. Usually, our systems feature x-pipes or mufflers, like the Protomotive X-Pipe, which is popular among 993, 996, 997, and 991 Turbo street cars. However, for the Cars and Coffee and RWB wide-body cars that want to showcase their vehicles, the center-out TT3 exit delivers an extraordinary look and sound.
GT3 Sound – The Choice for Power and Performance
One of the most intriguing questions we often receive is about the sound of the Twin Turbo System. The positioning of the twin centers close to each other ensures a captivating GT3 sound combined with the thrilling RSF open wastegate sound when on Boost.
Fueling and ECU
To optimize fuel delivery, this Twin Turbo System incorporates a pressure sensing system or speed density. We’ve converted the standard Carrera 3.2 DME to our pressure sensing system by installing a map sensor and a TPS, allowing for precise fuel management and maximum performance.
Powerful GT2860RS Turbos
At the core of this Twin Turbo System are the GT2860RS turbos, boasting 35-pound compressors each. With these high-performance turbos, the system has a staggering 700 horsepower potential, offering unmatched power and acceleration. The fitment of Garrett turbos is incredibly flexible, accommodating various setups, making this system highly versatile.
Engine Performance and Reinforcement
The engine setup varies depending on the desired performance level. Stage one setups are typically bolt-on, while stage two setups require a top end rebuild with lowered compression. Stage three setups often involve using C2 turbo head gaskets for higher boost levels and additional reinforcement.
Thermally Efficient Protomotive Intercooler
Our Twin Turbo System features the renowned Protomotive intercooler, offering an impressive thermal efficiency of up to 86%. This ensures your Porsche remains cool even during intense performance sessions. We offer various finish options for the intercooler, allowing you to customize it to your liking.
Exhaust and Sound Options
For exhaust and sound customization, we have a range of options available. Whether you prefer a GT3 race sound, an RSR-inspired roar, or a quieter street-friendly tone, we can tailor the system to suit your preferences. For street use, we can also incorporate catalytic converters where necessary.
Bottom Side Details
On the underside of the engine, our Twin Turbo System features Eagle links headers with a carefully designed primary equal length and proper merge collector. The 38-millimeter gates are skillfully positioned for optimal performance and gravity drainage.
Closing Remarks
We hope you enjoyed this insight into our Twin Turbo System for Porsche cars. If you have any questions or would like to know more about our upgrade options, feel free to leave a comment below. Don’t forget to like, subscribe, and stay tuned for more exciting updates and sneak peeks of our high-performance enhancements. Thank you for joining us today!

Written by Protomotive
Posted on Damien Desormeaux Drove a stock 996TT and wasnt sold. Ended up buying a 996TT with a Protomotive Tune, turbos, fender mount intakes, etc... and I am impressed every time I drive the car. As the boost builds it pulls you deep into the seats, and at normal throttle it is very tame and drives as though its a stock car. Can not recommend them enough.Posted on Paul Todd’s consulting services helped me with a difficult and expensive desision. His honesty and valued expertise game me the insite I needed. Extreamy greatfull. Paul (07 997.1 Florida)Posted on Boxstclever I just wanted to drop you a line to say a massive thankyou from England!! I posted a comment asking a question (as Boxtclever) on your video "How to Diagnose 996 and 997tt Variable Lifter Issues" last week, and you kindly responded almost immediately. I have a slow burner project 996 Turbo that some time ago I removed the engine due to a knocking noise which would come and go at idle, and disappear once some revs were applied. I didn't have the confidence to tear it apart and rebuild the engine at the time so gave it to a friend who builds race engines for a living, and has a lot of experience building 911 Cup car engines. The knocking sound was believed to be due to a slightly stretched timing chain and worn chain guides. Once back in the car and running, I had the issue you describe perfectly in the video in that when driving, it wouldn't rev past 3k and record multiple misfires. I spent hours searching for the issue before someone on the 911uk forum suggested your video. After posting my comment, I have managed to see that the gasket on Bank 1 (our passenger side) did in fact have the stamped letters and numbers facing outwards, but showing for cylinders 4-6!! With the engine still in the car, I just can't get to see the gasket orientation for Bank 2 (not that it really matters now), so I removed the intercooler, lowered the engine and removed the actuator, and it's pretty clear that I can see the gasket rather than the end of the oil gallery. It seems that supplying the builder with just the block meant he went into GT3 mode, as those gaskets are not handed. Anyway, I just wanted to express my huge gratitude, as without your video, I would have been chasing the issue round and potentially ending up spending a lot of money on diagnostics trying to locate the issue. So, engine out, and back to the builder to rectify. Thanks again,Posted on Nick Kalashnik Great people! They really know their stuff.Posted on Dmitriy Todd tuned my 2007 911 Turbo (997.1 Mezger) with a focus on safety—minimizing knock and being gentle on the stock rods. Power gains were secondary, but the results exceeded expectations. Knock is virtually eliminated compared to the OEM tune, making it significantly safer, and the car feels like a rocket. Amazing work.Posted on Valenchino L I've been with Protomotive (Todd) for over 17 year, he has tuned a few of my 911 turbos and helped me along the way. i cant say enought good things about him, LETS JUST SAY HE'S ONE OF THE BEST AMONG A FEW . Richard LimPosted on Greg Mullins Todd and the Protomotive team are simply the best. In 2009 we installed K24/18G turbos, injectors and tune on my 996T. 16 years and 65K miles since upgrades and the car is still running strong at 137K total mileage on the original engine. This past week I was fortunate to visit Protomotive to pick up my welded coolant pipes. The welds are incredible. Todd was very gracious with his time and provided a full shop tour including in house CNC machine shop, hub chassis dyno and engine dyno cell. His knowledge of modifying and tuning Porsche turbo cars is unparalleled and the quality of Protomotive custom parts is simply incredible. Whether you want a "mild" 575-600 hp car like mine or a 1500 WHP monster, Protomotive is the place.Posted on Scott Studer Working with Todd / Protomotive has been a spectacular experience!! We recently purchased a 2001 911 Turbo that My Wife and I would like to drive on track. Our goal was to have "two maps" so that both a New / more experienced driver can share the same car. We were able to get on track last weekend and it was All SMILES. Todd's level of expertise / willingness to help is unparalleled. Thanks TODD!!Posted on AJ Konkol I can't say enough great things about Todd and Protomotive! Being a shop owner myself it's very hard to trust anyone to touch my personal stuff and when I got my 2007 911 I undertook some major maintenance items.....I sent me cams and turbos into Todd and he had incredible communication and advice.....answered all of my questions VERY thoroughly and helped me every step of the way....I will definitely be back in the future for more things and have no hesitation to refer people to him for anything they may need. It's refreshing to find great and knowledgable shops like this.Posted on Jeremy Wu I had no idea what I was going to get when I was recommended Todd, but after every speed shop I spoke to in the PNW said this was the only guy for the job, I figured it was probably my best bet. I work with one of the largest independent Porsche dealers in the United States, and even with our resources, I was unable to find a willing, able, and qualified technician for my specific issue. I have been fighting diagnosing regarding drivability/tuning on my 4.0L 996.2 Carrera, and I needed to bring in the big guns to figure out my problem. Todd is the big guns. He knows the ins and outs of air and water cooled Porsches like the back of his hand, and I have 100% confidence in recommending him to anyone for any work they need done on these cars. He has done remote datalogging/analysis and side by side diagnosis with the technicians on my end, and has helped us through every step of the process. Todd and his team are A1, top notch, best of the best.Load more

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