Installation Guides » FLOWMASTER

FLOWMASTER Installation Guides

Professional installation resources for FLOWMASTER performance parts. General installation information below.

Official FLOWMASTER Installation Instructions

Access the manufacturer's official installation guides, technical documentation, and support resources directly from FLOWMASTER.

View Official Instructions

General FLOWMASTER Installation Tips

Recommendation
Professional Installation
Workspace
Clean, well-lit garage
Documentation
Refer to included manual
  • Standard metric and SAE socket set
  • Torque wrench (ft-lbs and in-lbs)
  • Jack and jack stands (for suspension/exhaust work)
  • Thread locker (blue Loctite) as specified
  • Anti-seize compound for exhaust fasteners
  • Safety glasses and gloves

Important Safety Information

Always disconnect the battery before working on electrical components. Use proper jack stands when working under the vehicle. Allow the engine and exhaust to cool before beginning work. Follow all manufacturer torque specifications. If unsure about any step, consult a professional mechanic.

FLOWMASTER Products We Carry

Browse our FLOWMASTER catalog. Click any part to see specific installation info.

Part Number Product Name
12012409 FLO Super HP-2 Series Muffler
12014310 FLO dBX Series Muffler
12018409 FLO Super HP-2 Series Muffler
12412409 FLO Super HP-2 Series Muffler
12418409 FLO Super HP-2 Series Muffler
12512304 FLO Super HP-2 Series Muffler
12512304 FLO Super HP-2 Series Muffler
12512409 FLO Super HP-2 Series Muffler
12514310 FLO dBX Series Muffler
12518304 FLO Super HP-2 Series Muffler
12518304 FLO Super HP-2 Series Muffler
12518409 FLO Super HP-2 Series Muffler
12518409 FLO Super HP-2 Series Muffler
13012100 FLO PRO Series Muffler
13014310 FLO dBX Series Muffler
13016100 FLO PRO Series Muffler
13516101 Hushpower Pro Muffler - 3.50 In/Out Aluminized
14020100 FLO PRO Series Muffler
14020100 FLO PRO Series Muffler
15110 FLO Universal Resonator
15307 FLO Exhaust Tips
15316 FLO Exhaust Tips
15354 FLO Exhaust Tips
15356 FLO Exhaust Tips
15361 FLO Exhaust Tips
15361 FLO Exhaust Tips
15362 FLO Exhaust Tips
15362 FLO Exhaust Tips
15363 FLO Exhaust Tips
15363 FLO Exhaust Tips
15365 FLO Exhaust Tips
15365 FLO Exhaust Tips
15366 S/S Exhaust Tip - 4in Dia.- 3.5in Pipe
15369 FLO Exhaust Tips
15371 FLO Exhaust Tips
15377 FLO Exhaust Tips
15377 FLO Exhaust Tips
15385 FLO Exhaust Tips
15385 FLO Exhaust Tips
15389 FLO Exhaust Tips
15389 FLO Exhaust Tips
15390 FLO Exhaust Tips
15390 FLO Exhaust Tips
15391 FLO Exhaust Tips
15393 FLO Exhaust Tips
15397 FLO Exhaust Tips
15398 FLO Exhaust Tips
15400 FLO Exhaust Tips
15401 FLO Exhaust Tips
15402 FLO Exhaust Tips
15404B SS Exhaust Tip Black
15405B SS Exhaust Tip Black
15406B SS Exhaust Tip Black
15407B SS Exhaust Tip Black
15801 FLO Tail Pipes
15801 FLO Tail Pipes
15802 FLO Tail Pipes
15802 FLO Tail Pipes
15803 FLO Tail Pipes
15804 FLO Tail Pipes
15804 FLO Tail Pipes
15805 FLO Tail Pipes
15806 FLO Tail Pipes
15806 FLO Tail Pipes
15807 FLO Tail Pipes
15807 FLO Tail Pipes
15811 FLO Tail Pipes
15816 FLO Tail Pipes
15816 FLO Tail Pipes
15817 FLO Tail Pipes
15817 FLO Tail Pipes
15818 FLO Tail Pipes
15818 FLO Tail Pipes
15819 FLO Tail Pipes
15819 FLO Tail Pipes
15820 FLO Tail Pipes
15822 FLO Tail Pipes
15822 FLO Tail Pipes
15823 FLO Tail Pipes
15826 FLO Tail Pipes
15828 FLO Tail Pipes
15902 FLO Tail Pipes
15902 FLO Tail Pipes
15903 FLO Tail Pipes
15920 Balance Pipe Kit- 2.50in Dia.
15923 FLO Collector Ball Flange Kit
15925 FLO Collector Ball Flange Kit
15925 FLO Collector Ball Flange Kit
15926 FLO Universal S-Bend Kit
15927 FLO Universal S-Bend Kit
15927 FLO Universal S-Bend Kit
15927 FLO Universal S-Bend Kit
15929 FLO Tail Pipes
15930 Ball Flange Header Collector Kit 3.0 to 3.0
15935 FLO Universal Fit Dual Exhaust Kit
15936 FLO Universal Fit Dual Exhaust Kit
15936 FLO Universal Fit Dual Exhaust Kit
15937 FLO Universal Fit Dual Exhaust Kit
15937 FLO Universal Fit Dual Exhaust Kit
15938 FLO Collector Ball Flange Kit
17104 FLO American Thunder Crossmember-Back Exhaust Systems
17104 FLO American Thunder Crossmember-Back Exhaust Systems
17106 FLO Force II Cat-Back Exhaust Systems
17106 FLO Force II Cat-Back Exhaust Systems
17107 Cat-Back Exhaust Kit - 64-77 GM A-Body
17112 FLO American Thunder Cat-Back Exhaust Systems
17112 FLO American Thunder Cat-Back Exhaust Systems
17113 FLO American Thunder Cat-Back Exhaust Systems
17116 FLO American Thunder Cat-Back Exhaust Systems
17116 FLO American Thunder Cat-Back Exhaust Systems
17116 FLO American Thunder Cat-Back Exhaust Systems
17119 FLO American Thunder Crossmember-Back Exhaust Systems
17119 FLO American Thunder Crossmember-Back Exhaust Systems
17120 FLO American Thunder Crossmember-Back Exhaust Systems
17120 FLO American Thunder Crossmember-Back Exhaust Systems
17125 FLO Force II Cat-Back Exhaust Systems
17126 FLO Force II Cat-Back Exhaust Systems
17126 FLO Force II Cat-Back Exhaust Systems
17129 FLO American Thunder Crossmember-Back Exhaust Systems
17129 FLO American Thunder Crossmember-Back Exhaust Systems
17132 FLO Force II Cat-Back Exhaust Systems
17133 FLO American Thunder Cat-Back Exhaust Systems
17133 FLO American Thunder Cat-Back Exhaust Systems
17135 FLO Force II Cat-Back Exhaust Systems
17135 FLO Force II Cat-Back Exhaust Systems
17139 FLO American Thunder Crossmember-Back Exhaust Systems
17139 FLO American Thunder Crossmember-Back Exhaust Systems
17139 FLO American Thunder Crossmember-Back Exhaust Systems
17143 FLO American Thunder Cat-Back Exhaust Systems
17143 FLO American Thunder Cat-Back Exhaust Systems
17147 FLO Force II Cat-Back Exhaust Systems
17147 FLO Force II Cat-Back Exhaust Systems
17149 FLO American Thunder Crossmember-Back Exhaust Systems
17149 FLO American Thunder Crossmember-Back Exhaust Systems
17153 FLO Force II Cat-Back Exhaust Systems
17153 FLO Force II Cat-Back Exhaust Systems
17162 FLO American Thunder Cat-Back Exhaust Systems
17162 FLO American Thunder Cat-Back Exhaust Systems
17165 FLO Force II Cat-Back Exhaust Systems
17166 FLO Force II Cat-Back Exhaust Systems
17166 FLO Force II Cat-Back Exhaust Systems
17166 FLO Force II Cat-Back Exhaust Systems
17171 FLO American Thunder Cat-Back Exhaust Systems
17178 FLO Force II Cat-Back Exhaust Systems
17178 FLO Force II Cat-Back Exhaust Systems
17198 FLO Force II Cat-Back Exhaust Systems
17199 FLO American Thunder Cat-Back Exhaust Systems
17199 FLO American Thunder Cat-Back Exhaust Systems
17200 FLO American Thunder Crossmember-Back Exhaust Systems
17200 FLO American Thunder Crossmember-Back Exhaust Systems
17201 FLO American Thunder Crossmember-Back Exhaust Systems
17201 FLO American Thunder Crossmember-Back Exhaust Systems
17202 FLO American Thunder Crossmember-Back Exhaust Systems
17202 FLO American Thunder Crossmember-Back Exhaust Systems
17203 FLO Force II Cat-Back Exhaust Systems
17208 FLO Force II Cat-Back Exhaust Systems
17211 FLO Force II Cat-Back Exhaust Systems
17211 FLO Force II Cat-Back Exhaust Systems
17212 FLO American Thunder Cat-Back Exhaust Systems
17212 FLO American Thunder Cat-Back Exhaust Systems
17213 FLO American Thunder Cat-Back Exhaust Systems
17213 FLO American Thunder Cat-Back Exhaust Systems
17215 FLO American Thunder Cat-Back Exhaust Systems
17215 FLO American Thunder Cat-Back Exhaust Systems
17220 95-98 GM P/U 6.5L Diesel Down Pipe Kit
17224 FLO American Thunder Cat-Back Exhaust Systems
17229 FLO Force II Cat-Back Exhaust Systems
17233 FLO American Thunder Cat-Back Exhaust Systems
17233 FLO American Thunder Cat-Back Exhaust Systems
17234 FLO American Thunder Cat-Back Exhaust Systems
17234 FLO American Thunder Cat-Back Exhaust Systems
17248 FLO American Thunder Cat-Back Exhaust Systems
17248 FLO American Thunder Cat-Back Exhaust Systems
17272 FLO Force II Cat-Back Exhaust Systems
17273 FLO American Thunder Crossmember-Back Exhaust Systems
17273 FLO American Thunder Crossmember-Back Exhaust Systems
17275 FLO Force II Cat-Back Exhaust Systems
17275 FLO Force II Cat-Back Exhaust Systems
17278 FLO Force II Cat-Back Exhaust Systems
17281 FLO American Thunder Crossmember-Back Exhaust Systems
17282 FLO American Thunder Crossmember-Back Exhaust Systems
17282 FLO American Thunder Crossmember-Back Exhaust Systems
17287 FLO American Thunder Cat-Back Exhaust Systems
17287 FLO American Thunder Cat-Back Exhaust Systems
17289 FLO American Thunder Crossmember-Back Exhaust Systems
17312 FLO American Thunder Cat-Back Exhaust Systems
17312 FLO American Thunder Cat-Back Exhaust Systems
17325 FLO American Thunder Cat-Back Exhaust Systems
17328 FLO American Thunder Cat-Back Exhaust Systems
17328 FLO American Thunder Cat-Back Exhaust Systems
17342 FLO American Thunder Cat-Back Exhaust Systems
17342 FLO American Thunder Cat-Back Exhaust Systems
17344 FLO Force II Cat-Back Exhaust Systems
17344 FLO Force II Cat-Back Exhaust Systems
17350 FLO American Thunder Cat-Back Exhaust Systems
17358 FLO American Thunder Cat-Back Exhaust Systems
17358 FLO American Thunder Cat-Back Exhaust Systems
17360 FLO Force II Cat-Back Exhaust Systems
17360 FLO Force II Cat-Back Exhaust Systems
17361 FLO Force II Cat-Back Exhaust Systems

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