The Street Power Package is for street driven GT4's and Spyders and includes 200 CPSI Cats and retains exhaust valves. You can choose to purchase a 997/991 GT3 muffler on your own, or purchase a lifetime muffler in Loud or Quiet with PVD Black...

The Dundon D4 Package is the culmination of our work on perfecting and guiding the pressure waves into and out of the 3.4L Engine resulting in 40lbft max gains over stock and 62whp at 7000rpm. The Street Power Package is for street driven Boxsters...

The Dundon D4 GT4 Clubsport Package is the culmination of our work on perfecting and guiding the pressure waves into and out of the 3.8L Engine. The D4 Clubsport package is all business, no cats, no valves, light and simply powerful!For those looking to...

Add Power and great sound and experience your Porsche's true capabilities with the Dundon Power Package. Intentionally designed to bring big power with and distinct sound we all love, this kit is perfectly tailored to add more muscle, better sound, and increased performance to...

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. ...

Add Power and great sound and experience your Porsche’s true capabilities with the Dundon Power Package. Intentionally designed to bring big power with and distinct sound we all love, this kit is perfectly tailored to add more muscle, better sound, and increased performance to...

40lbft and 40whp gainsThe Dundon Power Package for 991.1 911R Includes:Dundon 321Stainless Long Tube Street Headers93mm Center Plenum and 93mm Throttle Body Kit991.2 GT3 Touring AirboxOptional Lifetime Muffler with PVD Black or Ti Tips, in Loud or Quiet configurationsWe work on helping the naturally...

53lbft and 31whp gains. The Dundon Power Package for 991.2 GT3 Touring includes: Dundon 321Stainless Long Tube Street Headers, 93mm Center Plenum and 93mm, Throttle Body Kit, and optional Lifetime Muffler.We work on helping the naturally aspirated GT cars find power. The Touring was...

Add 40whp+ to your 991.2 Cup or Cup MR, without the need for tuning! Orbit racing just confirmed 468whp stock and now 515whp at an 8200RPM rev limit. She was still climbing! Getting the dynos will post!Package includes: 321 Stainless Steel Race Headers Inconel...

Our Most Popular Package. Street Headers and Lifetime Muffler!Dundon Street (Catted) tuned length headers and valved side delete exhaust system for the 991.2 GT3RS! We were able to keep all of the things that people love about our race headers: less weight more power,...

Add Power and great sound and experience your Porsche's true capabilities with the Dundon Power Package. Intentionally designed to bring big power with and distinct sound we all love, this kit is perfectly tailored to add more muscle, better sound, and increased performance to...

Dundon Street (Catted) tuned length headers and valved side delete exhaust system for the 991.2 GT3! We were able to keep all of the things that people love about our race headers: less weight more power, great sound, quiet when you want it to...

Package Includes: Street Headers Lifetime Muffler (Quiet or Loud w/ PVD Black or Titanium Tips) Dundon Street (Catted) tuned length headers and valved side delete exhaust system for the 991.1 GT3! We were able to keep all of the things that people love about...

Our Most Popular Package. Street Headers and Lifetime Muffler! Dundon Street (Catted) tuned length headers and valved side delete exhaust system for the 991.1 GT3! We were able to keep all of the things that people love about our race headers: less weight more...

Gain 25+ whp on your 991.1 Mezger Powered Cup CarPackage includes: 321 Stainless Steel Race Headers 321 Stainless Steel Lifetime Muffler

Add Power and great sound and experience your Porsche's true capabilities with the Dundon Power Package. Intentionally designed to bring big power with and distinct sound we all love, this kit is perfectly tailored to add more muscle, better sound, and increased performance to...

Add Power and great sound and experience your Porsche’s true capabilities with the Dundon Power Package. Intentionally designed to bring big power with and distinct sound we all love, this kit is perfectly tailored to add more muscle, better sound, and increased performance to...

Gain a much needed 25+whp in your 2012 to 2016 991.1 Mezger powered Cup Car. Package includes: 321 Stainless Steel Race Headers no valves Inconel Megaphone Center Exhaust "Crack Pipe" Make your Cup sound like an RSR! View this post on Instagram A post...

Package Includes: Race Headers, No Valves Megaphone Inconel Crack Pipe The ultimate package for your cup car! The header muffler combo is the package you need if you’re wanting to hold nothing back on the track, it is the most aggressive package we’ve engineered...

Package Includes: Race Headers, No Valves Megaphone Inconel Crack Pipe The ultimate package for your cup car! The header muffler combo is the package you need if you’re wanting to hold nothing back on the track, it is the most aggressive package we’ve engineered...