Here are some pics of the plenum and exhaust installs:
Plenum
The plenum is the piece that goes between the Cayman throttle body and the intake runners. The factory piece is a long black plastic tube with a divider down the middle. There are aftermarket replacements which are designed to allow the air to flow easier/faster into the engine and increase horsepower and torque.
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Best Regards,
Stephen Klitzsch
GMP Inc.
Re: Cayman S with speedART front lip/sideskirts, ipd Plenum, and B&B exhaust
I don’t mean to rain on the parade here but… why would you free the volumetric intake with a new plenum and BB exhaust and not take advantage of 35-40 horsepower you would have gained if you would have upgraded the ECU (next cost less the cost of the Sprint or $500)? Personally, I have done the same upgrades and realized no meaningful power until I upgraded the ECU.
Otherwise, that car is a real class act!
- Stevie
Plenum
The plenum is the piece that goes between the Cayman throttle body and the intake runners. The factory piece is a long black plastic tube with a divider down the middle. There are aftermarket replacements which are designed to allow the air to flow easier/faster into the engine and increase horsepower and torque.
Billy Boat Exhaust
Since 1989 Billy Boat Performance Exhaust has designed, tested, and manufactured the highest quality stainless steel exhaust systems available. Originally specializing in Porsche 911 performance exhaust systems, oil coolers, and intercoolers, B&B introduced the Tri-Flo line named after its unique 3-into-1 Porsche header. Today in its state-of-the-art facility, Billy Boat continues to develop the highest performing exhaust systems for most sports cars, trucks, and SUVs. With an in-house dyno facility and R&D staff, we stay on top of current vehicle trends and deliver products that fit and perform to an unsurpassed level of standards.
Re: Cayman S with speedART front lip/sideskirts, ipd Plenum, and B&B exhaust
Originally Posted by Stevie
I don’t mean to rain on the parade here but… why would you free the volumetric intake with a new plenum and BB exhaust and not take advantage of 35-40 horsepower you would have gained if you would have upgraded the ECU (next cost less the cost of the Sprint or $500)? Personally, I have done the same upgrades and realized no meaningful power until I upgraded the ECU.
Otherwise, that car is a real class act!
- Stevie
Working on getting an answer for you.
In the meantime, here's video of the exhaust in action:
Plenum
The plenum is the piece that goes between the Cayman throttle body and the intake runners. The factory piece is a long black plastic tube with a divider down the middle. There are aftermarket replacements which are designed to allow the air to flow easier/faster into the engine and increase horsepower and torque.
Billy Boat Exhaust
Since 1989 Billy Boat Performance Exhaust has designed, tested, and manufactured the highest quality stainless steel exhaust systems available. Originally specializing in Porsche 911 performance exhaust systems, oil coolers, and intercoolers, B&B introduced the Tri-Flo line named after its unique 3-into-1 Porsche header. Today in its state-of-the-art facility, Billy Boat continues to develop the highest performing exhaust systems for most sports cars, trucks, and SUVs. With an in-house dyno facility and R&D staff, we stay on top of current vehicle trends and deliver products that fit and perform to an unsurpassed level of standards.
Re: Cayman S with speedART front lip/sideskirts, ipd Plenum, and B&B exhaust
ECU has been flash but was not listed because we didn't flash it. The owner had it done prior to moving to the east coast where we are located. I drove the car 4 hours to deliver it to the customer and the car was very strong and very responsive to my right foot The car really responds so much better with the sprint booster in there and with the plenum and exhaust it peformed well and sounded great.
Plenum
The plenum is the piece that goes between the Cayman throttle body and the intake runners. The factory piece is a long black plastic tube with a divider down the middle. There are aftermarket replacements which are designed to allow the air to flow easier/faster into the engine and increase horsepower and torque.
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Let me know if I can help you with anything else.
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The car really responds so much better with the sprint booster in there and with the 
Linear Mode
