Flowmaster® proudly introduces our newest cat-back exhaust system for 2011-2012 Mustang GT with the 5.0L engine. Designed for the hard core enthusiast, the Outlaw Series mufflers deliver a very aggressive exterior tone, along with an aggressive interior sound as well. The system features dual 3.00-inch mandrel-bent stainless steel tubing, our exclusive Scavenger Series® X-pipe for maximum power and a unique deep tone and includes a pair of our race-proven Outlaw® mufflers. The large 3.00-inch mandrel-bent tailpipes use the factory hanger locations are finished off with 4.00-inch polished 304 stainless steel tips. Includes all necessary parts, hardware and detailed instructions for an easy installation you can do at home. Covered by our Lifetime Limited Warranty. Note: Does Not Fit GT500.
| Brand |
Flowmaster |
| California Proposition 65 |
Yes |
| California Proposition 65 Chemical Name |
Nickel (Metallic) |
| California Proposition 65 Chemical Name |
Chromium (hexavalent compounds) |
| CARB (California) Compliant |
Yes |
| Catalytic Converter Included |
No |
| 2874 |
0 |
| Category |
Exhaust |
| 3728 |
Flat Band |
| 1882 |
Yes |
| Emission Code |
5 |
| Exhaust Series |
Outlaw |
| 11205 |
Silver |
| 9874 |
Welded |
| 9876 |
Angled |
| 1162 |
4.00 |
| 9877 |
Rolled Edge Angle Cut |
| 1163 |
Polished |
| 9881 |
No |
| 10104 |
5.25 |
| 1164 |
304 Stainless Steel |
| 1161 |
2 |
| 9878 |
No |
| 10980 |
Round |
| 9875 |
Single Wall |
| 9870 |
Dual Out Rear |
| 200 |
Natural |
| 353 |
No |
| 3390 |
Performance |
| 4364 |
Yes |
| Heat Shield Included |
No |
| Inlet Diameter |
3.00 |
| 596 |
Clamp-On |
| 9871 |
3.00 |
| 92 |
No |
| 11021 |
4.00 |
| 11022 |
10.50 |
| 11023 |
4.00 |
| 11064 |
Chambered |
| 11048 |
4.00 |
| 11049 |
10.50 |
| 11050 |
4.00 |
| 11073 |
Chambered |
| 4371 |
4.00 |
| 9884 |
4.00 |
| 1892 |
10.50 |
| 4372 |
409 Stainless Steel |
| 4373 |
Round |
| 9882 |
Black High-Temperature Paint Finish |
| 4367 |
No |
| 4368 |
No |
| Muffler Included |
Yes |
| 9962 |
Slip-Fit |
| 4365 |
3.00 |
| 4375 |
1 |
| Muffler Part Number |
Kit Only |
| 4374 |
2 |
| Muffler Series |
Outlaw |
| 1174 |
Chambered |
| part type |
Exhaust System |
| 3530 |
409 Stainless Steel |
| Product Type |
Exhaust System |
| Sound Level |
Aggressive |
| 4377 |
No |
| Sub Category |
Exhaust and Tail Pipes |
| 4369 |
3.00 |
| 4376 |
2 |
| Tail Pipe Quantity |
Dual |
| 4370 |
No |
| 26 |
Cat-Back |
| 6014 |
No |
| 2126 |
Not Applicable |
| Warning |
California Proposition 65 |
| Pipe Color |
Black |
| Pipe Color |
Silver |
| Drive |
2WD |
| 9885 |
4.00 |
| Brand |
Flowmaster |
| California Proposition 65 |
Yes |
| California Proposition 65 Chemical Name |
Nickel (Metallic) |
| California Proposition 65 Chemical Name |
Chromium (hexavalent compounds) |
| CARB (California) Compliant |
Yes |
| Catalytic Converter Included |
No |
| 2874 |
0 |
| Category |
Exhaust |
| 3728 |
Flat Band |
| 1882 |
Yes |
| Emission Code |
5 |
| Exhaust Series |
Outlaw |
| 11205 |
Silver |
| 9874 |
Welded |
| 9876 |
Angled |
| 1162 |
4.00 |
| 9877 |
Rolled Edge Angle Cut |
| 1163 |
Polished |
| 9881 |
No |
| 10104 |
5.25 |
| 1164 |
304 Stainless Steel |
| 1161 |
2 |
| 9878 |
No |
| 10980 |
Round |
| 9875 |
Single Wall |
| 9870 |
Dual Out Rear |
| 200 |
Natural |
| 353 |
No |
| 3390 |
Performance |
| 4364 |
Yes |
| Heat Shield Included |
No |
| Inlet Diameter |
3.00 |
| 596 |
Clamp-On |
| 9871 |
3.00 |
| 92 |
No |
| 11021 |
4.00 |
| 11022 |
10.50 |
| 11023 |
4.00 |
| 11064 |
Chambered |
| 11048 |
4.00 |
| 11049 |
10.50 |
| 11050 |
4.00 |
| 11073 |
Chambered |
| 4371 |
4.00 |
| 9884 |
4.00 |
| 1892 |
10.50 |
| 4372 |
409 Stainless Steel |
| 4373 |
Round |
| 9882 |
Black High-Temperature Paint Finish |
| 4367 |
No |
| 4368 |
No |
| Muffler Included |
Yes |
| 9962 |
Slip-Fit |
| 4365 |
3.00 |
| 4375 |
1 |
| Muffler Part Number |
Kit Only |
| 4374 |
2 |
| Muffler Series |
Outlaw |
| 1174 |
Chambered |
| part type |
Exhaust System |
| 3530 |
409 Stainless Steel |
| Product Type |
Exhaust System |
| Sound Level |
Aggressive |
| 4377 |
No |
| Sub Category |
Exhaust and Tail Pipes |
| 4369 |
3.00 |
| 4376 |
2 |
| Tail Pipe Quantity |
Dual |
| 4370 |
No |
| 26 |
Cat-Back |
| 6014 |
No |
| 2126 |
Not Applicable |
| Warning |
California Proposition 65 |
| Pipe Color |
Black |
| Pipe Color |
Silver |
| Drive |
2WD |
| 9885 |
4.00 |
| Description_ABR |
SYS 11-12 MU |
| Description_SHO |
SYS 11-12 MUSTANG GT |
| Description_INV |
11-12 MUSTANG GT CAT-BACK OTL 409S |
| Description_ASC |
Fits 2011-2012 Ford Mustang GT 5.0L Coupes & Convertibles. Does Not Fit GT500. |
| Description_DES |
Flowmaster Outlaw Cat-back Exhaust System |
| Description_EXT |
2011-2012 Ford Mustang GT 5.0L Coupes & Convertibles. Does Not Fit GT500. - Aggressive sound |
| Description_MKT |
Flowmaster® proudly introduces our newest cat-back exhaust system for 2011-2012 Mustang GT with the 5.0L engine. Designed for the hard core enthusiast, the Outlaw Series mufflers deliver a very aggressive exterior tone, along with an aggressive interior sound as well. The system features dual 3.00-inch mandrel-bent stainless steel tubing, our exclusive Scavenger Series® X-pipe for maximum power and a unique deep tone and includes a pair of our race-proven Outlaw® mufflers. The large 3.00-inch mandrel-bent tailpipes use the factory hanger locations are finished off with 4.00-inch polished 304 stainless steel tips. Includes all necessary parts, hardware and detailed instructions for an easy installation you can do at home. Covered by our Lifetime Limited Warranty. Note: Does Not Fit GT500. |
| Description_FAB |
Large 3.00-inch Mandrel-bent Tubing |
| Description_FAB |
Uses the Factory Hanger Locations |
| Description_FAB |
Dyno Proven Performance Gains |
| Description_FAB |
Race-proven Outlaw Mufflers |
| Description_FAB |
Stainless Steel Construction |
| Description_FAB |
Lifetime Limited Warranty |
| Description_FAB |
Super Aggressive Sound |
| Description_ABR |
SYS 11-12 MU |
| Description_SHO |
SYS 11-12 MUSTANG GT |
| Description_INV |
11-12 MUSTANG GT CAT-BACK OTL 409S |
| Description_ASC |
Fits 2011-2012 Ford Mustang GT 5.0L Coupes & Convertibles. Does Not Fit GT500. |
| Description_DES |
Flowmaster Outlaw Cat-back Exhaust System |
| Description_EXT |
2011-2012 Ford Mustang GT 5.0L Coupes & Convertibles. Does Not Fit GT500. - Aggressive sound |
| Description_MKT |
Flowmaster® proudly introduces our newest cat-back exhaust system for 2011-2012 Mustang GT with the 5.0L engine. Designed for the hard core enthusiast, the Outlaw Series mufflers deliver a very aggressive exterior tone, along with an aggressive interior sound as well. The system features dual 3.00-inch mandrel-bent stainless steel tubing, our exclusive Scavenger Series® X-pipe for maximum power and a unique deep tone and includes a pair of our race-proven Outlaw® mufflers. The large 3.00-inch mandrel-bent tailpipes use the factory hanger locations are finished off with 4.00-inch polished 304 stainless steel tips. Includes all necessary parts, hardware and detailed instructions for an easy installation you can do at home. Covered by our Lifetime Limited Warranty. Note: Does Not Fit GT500. |
| Description_FAB |
Large 3.00-inch Mandrel-bent Tubing |
| Description_FAB |
Uses the Factory Hanger Locations |
| Description_FAB |
Dyno Proven Performance Gains |
| Description_FAB |
Race-proven Outlaw Mufflers |
| Description_FAB |
Stainless Steel Construction |
| Description_FAB |
Lifetime Limited Warranty |
| Description_FAB |
Super Aggressive Sound |
