Racing-type INOX exhaust muffler with dual center pipe, 911 (65-73)

Our Racing type steel exhaust muffler with two centrally located exhaust tips for your Porsche 911 is suitable for the following vehicles:  

Porsche 911 2.0 L (1965-1968)              

Porsche 911 S 2.0 L (1967-1969)  

Porsche 911 T 2.0 L (1968-1969)

Porsche 911 TU 2.0 L (1968)

Porsche 911 L 2.0 L (1968-1969)            

Porsche 911 E 2.0 L (1969)          

Porsche 911 T 2.2 L (1970-1971)  

Porsche 911 E 2.2 L (1970-1971)            

Porsche 911 E 2.4 L (1972-1973)            

Porsche 911 S 2.2 L (1970-1971)

Porsche 911 S 2.4 L (1972-1973)           

Porsche 911 TV 2.4 L (1972-1973)          

Porsche 911 TE 2.4 L (1972-1973)                             

Porsche 911 TK 2.4 L (USA-CAN) (1973)                              

Porsche 911 Carrera 2.7 L (1973)

This Sport exhaust muffler can also be installed on all 911 models equipped with dual exhaust ports.

Inner diameter of exhaust muffler intake pipes: 45 mm.

Inner diameter of muffler exhaust pipes: 46 mm.

Outer diameter of muffler exhaust pipes: 50 mm.

Our Racing exhaust muffler featuring dual intake and outflow pipes substantially increases the flow of exhaust gases out from the engine, reducing engine back pressure and substantially increasing performance.  A sporty exhaust tune is another trademark feature of our Racing exhaust muffler.  Your Classic 911 will have a distinctive, sporty growl. 

To be fitted with our dual exhaust Racing muffler, we recommend that you install the SSI stainless steel heat exchangers, our Spaghetti-type exhaust headers, or any other performance exhaust system equipped with dual outflow pipes.

In order to fit the dual pipe rear exhaust muffler, you will need to modify the rear fender lower valance for proper fitment.

This Racing muffler is a performance-increasing lightweight replacement for your Porsche’s original exhaust muffler; it is specifically recommended for track use.

Note: this part is sold separately.

When installing your Racing exhaust muffler, we recommend the following components to attain the highest level performance: 

911.010450S: Stainless steel left-side heat exchanger, 911 (69-73) + 911 Carrera 2.7 (73-76) vehicles with MFI 

911.010450S1: Stainless steel left-side heat exchanger, 911 T (65-73)

911.010452S: Stainless steel right-side heat exchanger, 911 (65-74) + 911 Carrera 2.7 L (73-76)

911.010482: Exhaust muffler gasket, 911 (65-75) + 914-6 (70-72) (2)

911.010471B: Exhaust muffler hex head bolt, M10 x 32 mm. 911 (65-74) + 914-6 (70-72)

911.010471C: Hex head exhaust copper nut, M10, 911 (65-74) + 356 Carrera (59-63) + 914-6 (70-72)