Removal of stock system, Installation of mbrp inc. performance exhaust – MBRP S6128 User Manual
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S6128 © 04/09
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Removal of Stock System
 
1. Apply a penetrating lubricant liberally to all exhaust fasteners, hangers and 
rubber insulators. 
 
2. Remove the exhaust system from the rubber insulators and remove all of the 
clamps from the system. 
 
 
3. Separate the slip joint behind the muffler and remove the tail pipe. Then 
separate the slip joint located behind the catalytic converter and remove the 
muffler and extension pipe. Remove the catalytic converter by separating the 
slip joint located between the down pipe and the catalytic converter. Finally 
loosen the band clamp connecting the down pipe to the turbo and remove the 
down pipe. Do not discard the band clamp as it is required for the 
installation. Refer to Figure 1. 
 
 
4. Remove the OEM down pipe hanger bracket from the bell-housing. Do not 
discard this part and hardware as they are required for the installation. 
5. Remove the spare tire. You may not be able to reinstall your spare tire after 
the installation of this exhaust system. 
Installation of MBRP Inc. Performance Exhaust
 
1. Slide the OEM down pipe hanger bracket onto the Down Pipe hanger. 
Install the Down Pipe in the same position as the stock down pipe by 
reattaching the hanger bracket to the bell-housing and then attaching the flared 
end to the turbo using the stock band clamp. Do not fully tighten until all 
components are in place. Refer to Figure 2. 
 
2. Install the 23” Extension Pipe onto the Down Pipe and then the 44” 
Extension Pipe onto the 23” Extension Pipe The combination of the Mid 
Pipe and Extension Pipe provides the required length to fit a Quad Cab Long 
Bed truck or Mega Cab. The 23” Extension Pipe can be left out on some of 
the shorter wheel based vehicles. 
Installation Tip: Temporarily install the Muffler and Tail Pipe using the 
factory rubber insulators and the Hanger Clamp. Measure from the Muffler 
to the rear most Extension Pipe to determine the length required. Cut that pipe 
to the required length. Refer to Figure 3. 
 
 
 
 
 
 
 
Figure 1
Figure 2
Figure 3
OEM 
Hanger 
