Keep Your Dirty Secret Under Your Car

This is the thing you open to kick some a...

Absolutely will increase your HP gain. Instantly move from silence to thunder.

944 above did not need exhaust cut out. He just did not have exhaust system like muffler and catalytic converter to worry about. He did not have to worry passing state emission every year or street noise control regulation.

Now you can have both!

 This is a cheap way out from spending a fortune on custom headers, performance muffler and free-flow cat. converter. Just remember, you have to install this bypass after the oxygen sensor.

CAST-IRON EXHAUST CUTOUT 

Dash control increases power, adjusts tone while you drive. Your two exhaust systems in one: 

(1) CLOSED QUIET EXHAUST for city and restricted areas; 

(2) WIDE-OPEN EXHAUST system for the open road and country driving when you want more speed, more power and gas economy. 

Made of cast iron. Requires welding. Mounts behind catalytic converter where applicable. With 5-ft. dash-control cable? Fits pipe 1-3/4" to 2-1/4" Note: Check local emission laws before ordering. 

P.S. If you like to know where this beautiful 944 racer is hiding- Imperial Palace Automotive Museum in LasVegas. It is for sale, for the astonishing amount of money.