- Stepped headers merge into a true reverse-cone megaphone muffler
- 1-3/4" headpipe steps up to 1-7/8" into the collector to increase flow and improve performance
- 4" muffler body with billet end cap
- Removable spiral-core louvered baffle included
- includes mounting hardware
- Includes O2 sensor port plugs
- Heat shields included
- Made in the U.S.A.
- Includes O2 sensor plugs for pre-'07 models.
|Part Image||Product / Part Number|
EXHAUST RR HS 86-11ST CHR
18001151 / 12111J
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