Exhaust› Mufflers and Resonators
Roush
SLP LoudMouth Resonator 3 Bullet-Type (ea.)
SKU: R00I 31066
Beginner — under 30 min
Description
MIA's Description
This resonator provides a versatile solution for switching between muffled and wide-open exhaust configurations. It features a 3-inch inner and outer diameter, a 4-inch body diameter, and an overall length of 18 1/4 inches.
Fitment
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Available on iOS & Android
Specifications
| Brand | Roush |
| Part Number | R00I 31066 |
Videos
1979-2004 Mustang SLP Loudmouth Center/Center Shotgun Style Resonator Pair - 2.5" Review
SLP Loudmouth Resonators on Mustang GT
2012 M56s Before/After with SLP Loudmouth resonators installed
Installing SLP exhaust on 1LE Z28, If you want loud this is the exhaust for your 4th gen.
2013 Gmc sierra with SLP loudmouth 2
SLP by LoudMouth LM2 Exhaust System Installation for 2015+ Mustangs
SLP Loudmouth Resonators vs. Flowmaster 40 Series Delta Flows on a 2004 Mustang GT
2014 Mustang GT 5.0 SLP Loudmouth 1
Tbss new exhaust SLP LOUDMOUTH
SN95 Mustang Install | SLP Loud Mouth Cat-Back Exhaust System
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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