🚀The catalytic converter in the Miata restricts exhaust flow and horsepower.
⚙️Replacing the catalytic converter with a straight pipe can increase horsepower.
🛠️Creating a custom test pipe to replace the catalytic converter is an affordable option.
🔥Welding the test pipe requires basic welding skills and a MIG welder.
📈Testing on a dyno reveals an increase in horsepower and torque with the test pipe.
Why is the catalytic converter a restriction?
—The catalytic converter is designed to reduce emissions by chemically reacting with pollutants, but it also restricts exhaust flow, limiting horsepower.
Can I replace the catalytic converter myself?
—Yes, replacing the catalytic converter with a test pipe is a relatively simple DIY project if you have welding skills and the necessary tools.
Will removing the catalytic converter make my car louder?
—Yes, removing the catalytic converter will increase the volume and sound of your car's exhaust.
Is removing the catalytic converter legal?
—Removing the catalytic converter is illegal in many regions as it increases emissions, violates environmental laws, and can result in fines.
Will removing the catalytic converter void my car's warranty?
—Removing the catalytic converter can void your car's warranty as it is considered a modification that alters the original equipment.
00:00The catalytic converter in the Miata restricts exhaust flow and horsepower.
04:35Creating a custom test pipe using a band saw and welding tools.
07:38Tacking the test pipe onto the car and preparing for welding.
08:27Demonstration of MIG welding the test pipe.
10:06Dyno testing with the stock catalyst and the test pipe.
