MBRP S6234 - Manual (Page 2)

Removal of stock system:
1. Loosen the nut on the band clamp located behind the catalytic converter using a 15mm wrench or
socket.
2. Remove the muffler and tail pipe from the OEM rubber hangers. On 03-04 trucks remove bottom
shock bolt of the passenger side shock to remove the system in one piece. This is not required on
05 and newer models. Separate the stock exhaust at the slip joint located behind the catalytic
converter and remove the muffler and tail pipe from under the truck. Re-install the bottom shock
bolt.
3. Remove the catalytic converter by removing the two nuts holding the inlet flange together using a
15mm wrench or socket. Retain the nuts for the re-installation of the catalytic converter.
4. Using a 15mm wrench or socket, remove the catalytic converter by removing the two nuts holding the
inlet flange together.
5. Remove the down pipe from the turbo by removing the band clamp using an 11mm socket. Retain the
band clamp for the installation of the new down pipe. Cut the down pipe in front of the transmission
cross member to remove. (Note: The stock down pipe can be removed in one piece by removing the
transmission cross member. It is recommended that this only be done by qualified, trained
professionals using tools and equipment designed to safely carry out this procedure.)
6. 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.
Install the Down Pipe in the same position as the stock down pipe and attach the flared end to the
turbo using the stock band clamp. Do not fully tighten until all components are in place.
2.
Attach the Mid Pipe to the Down Pipe using the 3.5" Clamp to secure the slip joint.
3.
Attach the factory catalytic converter to the Mid Pipe by placing the gasket supplied between the
flanges and installing the two nuts that were removed previously.
4. Install the 3.5" to 5” Extension Pipe over the OEM pipe behind the Catalytic Converter. The
Extension Pipe is pre-cut to fit a crew cab long bed truck. For extended cab long bed trucks the
Extension Pipe needs to be cut to a length of 26.5”. For crew cab short bed trucks the Extension
Pipe needs to be cut to a length of 24.5”. For extended cab short bed trucks the Extension Pipe
needs to be cut to a length of 11.25”.
5.
Install the Hanger Clamp into the OEM rubber hanger located on the frame beside the inlet of the
Muffler.
6. Install the Muffler over the Extension Pipe so that the exhaust will flow
smoothly over the louvers. Refer to the illustration on the left.
7.
Install the Hanger Clamp into the two OEM rubber hangers located
above the outlet of the Muffler.
S6234 © 01/9 Page 2 of 3