Roush 421985 Side-Exit Cat-Back Exhaust for 2015-20 Ford F-150 5.0L/3.5L/2.7L

Vehicle Fitment

• 2015-2020 Ford F-150 (XLT, Lariat, King Ranch, Platinum, Limited) with 5.0L V8, 3.5L EcoBoost, or 2.7L EcoBoost (all cab/bed configs); excludes Raptor

Features

• Dual black-tip or polished 304 stainless steel exhaust tips with Roush logo
• Mandrel-bent 3" tubing for optimized flow and power
• Side-exit design retains OEM look with aggressive tone
• Straight-through muffler minimizes cabin drone
• Pre-cut mid-pipe options for proper wheelbase fit
• Utilizes factory hanger locations - no cutting/welding required
• Resistant to corrosion with durable powder/chrome finish
• Backed by Roush 3-Year Limited Warranty

Specifications

• Tubing diameter: 3.0" mandrel-bent stainless steel (304 SS)
• Tip size: dual 4" outer diameter, black or polished finish
• Exit: passenger-side rear behind tire
• Compatible with all cab lengths - mid-pipe cut to fit 145-165" wheelbases
• Weight & flow improvements over stock: +X lb, +Y cfm (per Roush spec)

Included Components

• 1x Front inlet pipe
• 1x Rear straight-through muffler section
• 1x Over-axle tailpipe
• 1x Y-pipe with dual 4" tips
• 1x Mid-pipe (pre-cut for wheelbase)
• 1x Clamp/hardware kit
• 1x Installation guide

Product Description

The Roush 421985 Side-Exit Cat-Back Exhaust transforms your 2015-2020 Ford F-150 into a more assertive, performance-oriented machine. Constructed from durable 304 stainless steel with mandrel-bent 3" tubing and dual branded tips, this bolt-on system delivers a deep, aggressive Roush tone while preserving a near-OEM appearance. Side-exit design maintains factory look yet adds distinctive attitude behind the rear passenger tire.

This cat-back is engineered for trucks equipped with the 5.0L Coyote V8 or 3.5L/2.7L EcoBoost engines, compatible with all cab and bed configurations - excluding Raptor models. Pre-cut mid-pipe ensures fit across various wheelbases, and installation uses existing hanger locations without welding. Enjoy gains in airflow, throttle response, and towing performance, all backed by Roush's 3-Year Limited Warranty.