D3+ Power Package for 991.2 GT3

This is the most complete, well-rounded power package around for the 991.2 GT3 4.0L. With careful consideration and many design, engineering and tuning hours, we have extracted impressive power, torque and drive-ability out of the 991.2 GT3 4.0L engine. The best part: no compromises. 

All dyno figures are from a 2018 GT3 manual running 92 Octane pump fuel.

(bottom lines stock, middle line D3 package no tune, top line D3 with Dundon Pro Tune)

You are reading that correctly! MAX gains of 65whp and 64lb-ft of torque!

PEAK output OVER 502 horsepower at the wheels!!!

By reducing the pressure losses in the intake and allowing a more "free flow" into the engine the engine makes power two ways: First, less engine power is used to overcome the parasitic losses of the stock intake tract. Second, we're able to get more high pressure air to the intake valve (to cram in more air into the cylinder). Both of these translate into more power. On a car that uses "Ram-Air" to it's advantage (scoops on the decklid), the gains are more than can be measured on a static dyno. Finally, we utilize Cobb's Accessport to free up the remaining power that the ECU has been holding back. The result? The car drives like an absolute rocket!!  Kit Includes:

• Dundon Dual Reverse Cone Airbox
• Dundon Center Plenum with 93mm Throttle Body
• Complete Dundon Exhaust

• Street Headers
• High Flow Cats
• Valves
• Choice of Muffler: 

• Stainless Steel with either Black or Titanium tips (Classic Dundon sound, minimal drone and quite usable)
• Titanium Ultralight with Loud Inserts (Quieter at low RPM, Zero drone, High-pitch scream at full throttle)
• Inconel Megaphone Mini Crack Pipe (Full Race car most of the time, valves do a little to take the edge off)

• Cobb Accessport v3 with Dundon ProTune