Exhaust System

Overview and tightening sequence for exhaust system: 

Fig 1: Exhaust System Components Location With Torque Specification

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

1. Rear muffler, bank 4-6
2. Clamp - replace  > Tightening torque 15 Nm (11.1 ftlb.) 
3. Rear muffler, bank 1-3
4. Clamp > Tightening torque 23 Nm (17 ftlb.) 
5. Tailpipe trim for 2.5 litre engine > Tightening torque 55 Nm (40.6 ftlb.) 
6. Tailpipe trim for 2.0 litre engine > Tightening torque 55 Nm (40.6 ftlb.) 
7. Holder for rear muffler on Porsche Doppelkupplung (double-clutch transmission PDK)
8. Screws, M10 x 25 > Tightening torque 44 Nm (32.5 ftlb.) 
9. Holder for rear muffler on manual transmission
10. Screw, M8 x 20 > Tightening torque 23 Nm (17 ftlb.) 
11. Collar nut, M8 - replace  > Tightening torque 23 Nm (17 ftlb.) 

Location	Description	Type	Basic value	Tolerance
Shield to catalytic converter holder	Screw, M6 x 12	Tightening torque	10 Nm (7.4 ftlb.)
Exhaust flap control box to holder	Lock nut, M5	Tightening torque	6 Nm (4.4 ftlb.)
Control box holder mounting	M6 screw - grease with high-temperature paste	Tightening torque	10 Nm (7.4 ftlb.)
Shield to cylinder head cover, cylinder bank 1-2	External Torx screw, M6 x 12	Tightening torque	10 Nm (7.4 ftlb.)
Holder for loudspeakers for exterior acoustics to rear wall		Tightening torque	7.5 Nm (5.5 ftlb.)
Courtesy of PORSCHE CARS NORTH AMERICA, INC. Loudspeakers for exterior acoustics
Cover for loudspeakers for exterior acoustics to loudspeakers for exterior acoustics housing		Tightening torque	4 Nm (3 ftlb.)
Courtesy of PORSCHE CARS NORTH AMERICA, INC. Screws on cover for loudspeakers for exterior acoustics
Loudspeakers for exterior acoustics to rear wall cover	Collar nut, M6	Tightening torque	5 Nm (3.7 ftlb.)

Tightening sequence for exhaust system components: 

Fig 2: Exploded View Of Exhaust System

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

1-6  Tightening sequence for exhaust system