Talk to a Silverado 1500 Sales Tech
1-888-706-1096
M-F 8:30A-11P, Sat-Sun 8:30A-9P
$20K Sweeps! 10 Chances to Win! Enter Daily >

Best Sellers

How to Install SLP 3 in. Cat-Back Exhaust - Single Side Exit on your Silverado

Installation Time

2 hours

Tools Required
  • 3/8" Drive Ratchet
  • 3/8" Drive Extension 3"
  • 13 mm and 15 mm Sockets
  • Spray Lubricant (Soapy Water/Glass Cleaner)
  • Reciprocating Saw (“Sawzall”) or Equivalent Cutting Tool
  • Tape Measure
  • Marker Pen

Application: 2014 Chevrolet Silverado/GMC Sierra equipped with the 4.3L/5.3L/6.2L

Important Note:

Before installing your SLP exhaust, please read through the entire installation procedure and check to make sure all items are present. Contact SLP Customer Service at 1-855-SLP-PERF, 9:00 AM to 5:00 PM EST weekdays, for any questions regarding fi t or instructions that are unclear to you.

ORIGINAL EXHAUST SYSTEM REMOVAL

1. Disconnect the ball fl ange clamp on the factory exhaust that connects the exhaust system to the catalyst pipe.



2. Remove the factory exhaust by disconnecting each exhaust hanger from the exhaust system.

NOTE: The system can be removed as one (1) piece by removing it rearward over the rear axle. However, it may be easier to cut the system into two (2) pieces by cutting behind the muffler.

WARNING: Use extreme caution during installation. Torque all fasteners according to manufacturer’s torque values and tightening sequence. DO NOT use air impact tools to tighten fasteners on SLP Exhaust Systems. Use of such tools may result in bent fl anges or gasket contact areas leading to exhaust leaks.

SLP EXHAUST SYSTEM INSTALLATION

1. Install the over-axle pipe (P/N: 5-48) by inserting it into the three (3) factory rubber hanger mounts.



NOTE: Remove all of the protective plastic fi lm from the muffl er (P/N: 1115-5230) before installing.


2. Place one (1) 3" clamp (P/N: 10-0439) onto the inlet side of the over-axle pipe. Install the muffl er (P/N: 1115-5230) on the inlet side of the over-axle pipe until it completely bottoms out. Position the clamp on the joint and tighten to 30 Nm.


3. There are two (2) pipes provided in the kit to account for the four (4) different wheel base confi gurations. Trimming of this inlet pipe will be required for each specifi c vehicle. To mark the cut point on the inlet pipe, the muffl er and over- axle pipe should be in position (rubber hangers are positioned vertically). Using the correct inlet pipe (P/N: 5-46, 119" and 133" WB, 4.3L/5.3L), (P/N: 5-47, 143.5" and 153.5" WB, 4.3L/5.3L), (P/N: 5-68, 119" and 133" WB, 6.2L) or (P/N: 5-69, 143.5" and 153.5" WB, 6.2L) for the vehicle wheel base, temporarily install the ball fl are end of the inlet pipe against the catalyst fl ange and mark the inlet pipe, accounting for the 2-1/2" engagement into the muffl er inlet for a proper seal. Remove the inlet pipe and cut it with a suitable cutting tool.


4. Place one (1) 3" clamp (P/N: 10-0439) onto the end of the trimmed inlet pipe and insert it into the muffl er inlet. Loosely connect the ball fl ange to the catalyst fl ange using the ball fl ange clamp provided (P/N: 93-0088, 4.3L/5.3L) or (P/N: 05958081075, 6.2L). Insert the hanger into the factory rubber hanger mount. On 119" and 133" wheel base confi gurations, there will be an additional hanger located in front of the muffl er. Use the correct hanger for use on the vehicle. Install the hanger clamp (P/N: 6-1, 119" WB) or (P/N: 6-2, 133" WB) on the pipe in position to support the exhaust. Position the clamps on the joint and tighten to 30 Nm.



5. Install one (1) 3" clamp (P/N: 10-0439) over the outlet of the over-axle pipe and install the tip (P/N: 310305787) onto the outlet end of the overaxle pipe. Position and orient the tip to the desired location. Position the clamp on the joint and tighten to 30 Nm.


Before starting the vehicle, make sure to check all wires, hoses, brake lines, body parts, tires and any other components for safe clearance from the exhaust system.

Start the vehicle and check for any exhaust leaks. If any leaks are found, determine the cause (such as insuffi cient pipe engagement, loose or incorrectly positioned clamp) and repair as necessary.

Congratulations!!! You have completed the installation of your SLP cat back exhaust kit. It is recommended that you save all parts removed from the vehicle during the installation of this kit.

Best Sellers