18+ Rear Bumper on 15-17

[rubens_5.0]

Wait so you dont have to buy the 18-20 impact absorber

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[RileyZ]

You only need to purchase the parts that I have listed as "required". The other guys question was regarding a part that can be reused.

The absorber (which you need) is a different part from the crash bar.

 

[rubens_5.0]

You only need to purchase the parts that I have listed as "required". The other guys question was regarding a part that can be reused.

Awe ok gotcha thought they were the same parts

 

[hamzah596]

Well a reputable shop looked at the pics and said that they can have it race red for 400-450 and the bumper was 400 shipped the eBay seller agreed with me to ship it and he sold it to someone else while I messaged him for payment adjustment (due to extra 100 for shipping) that was a stupid move but oh well.

 

[S550Goon]

Just finished up swapping a 18+ Rear Bumper on my 2017 Gt so I figured I would gather up all the information needed incase someone else would like to do so. Originally I had just cut my stock diffuser to fit my Roush active exhaust but I was never fond of how it looked nor did I like the look of any of the aftermarket quad tip valances.

This swap is compatible with any 15-17 Mustang. Keep in mind you will be required to run a quad tip exhaust with this diffuser.

Note there is one modification that needs to be made to the 18+ rear bumper. Ford changed the style of mounting tab by the outer side of the taillights. On the 18+ rear bumper grind down the ridges on the tab and cut a slit to match the tab on the 15-17 rear bumper.

Known Exhausts that will fit with no modification needed are the following:
15-17 Roush active exhaust
Any 15-17 Corsa exhaust with Corsa quad tips
Any 18+ Mustang gt exhaust

From the 15-17 Rear Bumper you will be able to reuse the following:

License Plate Lights
Trunk Release Button
Reverse Sensors
Wiring Harness
Side Marker Lights



Parts needed to put 18+ Rear Bumper on 15-17 Mustang (I purchased my parts from @LevittownFordParts )

Rear Bumper Cover
JR3Z-17K835-AAPTM (With Sensors)
JR3Z-17K835-APTM (Without Sensors)

Rear Valance
JR3Z-17F828-AA (Quad Tip)

Reflectors
JR3Z-15A448-A
JR3Z-15A449-A

Reverse Light
JR3Z-15500-A

Absorber
JR3Z-17E855-B

Inner Support
JR3Z-17754-A


Before: 15-17 Rear Bumper with Roush active exhuast with cut diffuser

After: 18+ Rear Bumper with Roush active exhaust (Note the new reflectors are not installed in the valance because I am still waiting for them to arrive)

*Update with the reflectors

Hey, thanks for posting this! Without your instructions I would never have finished. Got it done in about 5 Hours!

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