Q. Will the vortex fit all cars?
A. In nearly every case the Vortex™ exhaust Resonator is smaller than the main muffler it replaces so there is no problem fitting.

Q. Do all cars of the same make and model have the same gain in power and torque?
A. No, some cars do better than others. This will depend on the condition of your engine and the version of Engine management System (EMS). EMS is a field of continual development and manufacturers often modify EMS systems several times during the production life of a car. So two cars from the same year won’t necessarily have the same performance.

Q. Should I upgrade the size of my exhaust when fitting a vortex?
A. Only if the pipe has a diameter less than 2” to begin with. Bigger is not necessarily better! Sometimes it can reduce your low down performance if you go for a bigger pipe size. The front pipe must not be bigger in diameter than the Vortex™ exhaust Resonator inlet diameter and the diameter of the part of the exhaust system and tail pipe.

Q. Will a Vortex™ exhaust Resonator work on an exhaust system that is bigger than 3” on high performance cars?
A. Yes, but you need a specially constructed Vortex™ Sport Exhaust?.

Q. If I have a v-engine and two independent exhaust pipes do I need two vortex mufflers?
A. Not necessarily. You could branch into a y-piece. Alternatively you can fit two mufflers in parallel.

Q. Will it work on a rotary engine?
A. Yes, with results as good as other engines, if not better, because you may have very high backpressure initially.

Q. Will I get a fuel saving on a very high performance car?
A. Yes, however, if you have an engine management system that does not change fuelling because it is not self-learning you will need to get the software remapped to save fuel, and have the engine running at its best.

Q. What if I have other modifications such as upgraded air filter, intercooler, new chip, new headers, or an enhanced turbo?
A. The vortex muffler will complement and increase your performance further as these modifications will do nothing to alleviate backpressure.
General questions

Q. What happens if I fit a Vortex™ exhaust to a vehicle with a turbocharged engine?
A. You will get a lower boost threshold and the turbo vanes it will accelerate faster. That will give much more boost and a smooth acceleration to you engine. You will know immediately that a major change has occurred.

Q. What happens if there is an Exhaust Gas Return valve fitted to the exhaust?
A. This will not affect the function or any of the benefits of the Vortex™ exhaust