FLOWMASTER 817961 Performance Exhaust System Instruction Manual
- June 13, 2024
- FLOWMASTER
Table of Contents
FLOWMASTER 817961 Performance Exhaust System
Product Information
- Product: Flowmaster Performance Exhaust System
- Model: 817961
- Compatibility: 2010-22 Toyota 4Runner with 4.0L Engine
- Manufacturer: Flowmaster
- Website: www.flowmastermufflers.com
- Technical Support: 866-464-6553
Product Usage Instructions
Installation Instructions
- Take a moment to read and understand these instructions before installing your Flowmaster performance system.
- Please inventory all parts now before continuing and if necessary, report any missing items to our tech line. This will avoid potentially stranding your vehicle until any missing replacement parts arrive.
Remove the Stock Exhaust System
-
Raise the vehicle up on a hoist or rack to a working height.
-
Remove bolts from the flange between the tailpipe and muffler.
Disassemble hanger wires from isolators and remove the tailpipe section from the vehicle. -
Support the muffler and disassemble wire hangers from isolators.
Remove and retain (x2 ea.) fasteners from the flange connecting the muffler to the inlet, then remove the muffler section from the vehicle.
Install Flowmaster Exhaust System
- Remove nuts from stock and Flowmaster clamps, apply anti-seize compound to bolts, and re-install nuts.
- Your muffler connection must seat 2 deep. Mark it accordingly so your Flowmaster exhaust system fits properly onto the vehicle.
- Insert inlet pipe wire hanger into the isolator, then connect flanges with fasteners (removed in step 4).
- Place clamp onto muffler, then connect it to the inlet pipe. Tighten the clamp just enough to allow for adjustment.
- Adjust exhaust components for fit, maintaining 1/2 clearance and compensating for suspension, travel, and vibration, then tighten the clamp completely.
- Recommended: Secure slip-fit connections with a 1-inch tack weld, then spray high-temp paint over each weld to prevent rust and premature corrosion.
Congratulations, the installation of your FLOWMASTER performance exhaust system is now complete!
OVERVIEW
Take a moment to read and understand these instructions before installing your Flowmaster performance system.
NOTE: Please inventory all parts now before continuing and if necessary, report any missing items to our tech line. This will avoid potentially stranding your vehicle until any missing replacement parts arrive.
| ITM # | PART # | DESCRIPTION | QTY. |
|---|---|---|---|
| 1 | 935TBS | Inlet Pipe | 1 |
| 2 | 815430-574 | Muffler Assembly | 1 |
| N/A | PK1059 | Hardware Package includes: | 1 |
| 3 | MC300BS | 3″ Stainless Band Clamp | 1 |
REMOVE STOCK EXHAUST SYSTEM
Raise vehicle up on a hoist or rack to working height. If you don’t have access to a hoist or rack, support the vehicle with jack stands.
WARNING: Avoid serious burns! Allow your vehicle time to cool completely before touching any factory engine components.
To ease the preparation and installation of your new kit:
-
Apply penetrating lubricant to mounts, bolts, and clamps before you remove them.
-
Use stands as necessary to support parts as you detach them from your vehicle and again as you install new parts.
-
Remove bolts from the flange between the tailpipe and the muffler. Disassemble hanger wires from isolators and remove the tailpipe section from the vehicle.
-
Support the muffler and disassemble wire hangers from isolators. Remove and retain (x2 ea.) fasteners from the flange connecting the muffler to the inlet then remove the muffler section from the vehicle.
INSTALL FLOWMASTER EXHAUST SYSTEM
- Remove nuts from stock and Flowmaster clamps, apply anti-seize compound to bolts, and re-install nuts.
- NOTE: The image in this step is intended for illustrative purposes only and may or may not accurately reflect the components included in your kit.
- Your muffler connection must seat 2″ deep. Mark it accordingly so your Flowmaster exhaust system fits properly onto the vehicle.
- Insert inlet pipe (1) wire hanger into isolator then connect flanges with fasteners (removed step 4).
- Place clamp (3) onto muffler (2) then connect it to inlet pipe. Tighten the clamp just enough to allow for adjustment.
- Adjust exhaust components for fit; maintaining 1/2″ clearance and compensating for suspension, travel, and vibration, then tighten the clamp completely.
- Recommended: Secure slip-fit connections with a 1-inch tack weld then spray high-temp paint over each weld to prevent rust and premature corrosion.
Congratulations, the installation of your FLOWMASTER performance exhaust system is now complete!
Installation Diagram
817961 2010-22 TOYOTA 4RUNNER 4.0L ENGINE
CONTACT
- www.flowmastermufflers.com.
- Technical Support 866-464-6553