Borla 11881 ATAK Axle-Back Exhaust for 14-19 Chevy Corvette C7 w/o AFM w/o NPP

Vehicle Fitment

• 2014-2019 Chevrolet Corvette (C7; Stingray / GT / Z06 / ZR1 variants) with 6.2L V8
• Excludes models with AFM / NPP factory valves unless disabled or removed

Fitment Notes

• This is an **axle-back** system (rear exhaust section only, from behind the mufflers to tips).
• Intended for vehicles **without** AFM (Active Fuel Management) or NPP (dual mode) exhaust systems, or where those systems are disabled.
• If your Corvette has factory AFM/NPP, a Check Engine Light may occur unless valves are removed or disabled.
• Not compatible with Grand Sport models using manual transmission which retain AFM/NPP functionality.
• Requires cutting of OEM rear section for installation; uses factory hangers and mounts.

Features

• ATAK (Aggressive sound) tuning with deep, commanding tone without interior drone
• Mandrel-bent 2.75" stainless steel tubing for maximum exhaust flow
• Patented straight-through muffler / multi-core design for optimal balance of sound and performance
• Polished 4.25" rolled angle-cut quad center tips in T-304 stainless steel
• Constructed entirely from T-304 stainless for durability and corrosion resistance
• Makes full use of CNC precision and robot welding for consistent fitment
• Easy bolt-on installation using provided bracketry (no welding of tips required)
• Covered under Borla's million-mile structural warranty (excluding moving parts such as valves when included)

Specifications

• Part Number: 11881
• System Type: ATAK Axle-Back (rear exhaust replacement)
• Inlet Pipe Diameter: 2.75 in (≈ 69.8 mm)
• Main Tubing: CNC mandrel-bent 2.75 in
• Tip Size: 4.25 in polished stainless (x4, quad center exit)
• Material: T-304 stainless steel (complete system)
• Exit Orientation: Center quad exit under rear bumper
• Tip Finish: Polished, rolled edge, angle-cut
• Warranty: Million-mile structural (valve hardware subject to 3-year coverage if applicable)

Included Components

• Axle-back exhaust assembly (left and right rear sections)
• Quadrant center exit tips (4x 4.25" polished stainless)
• Mounting bracket hardware and clamps
• Installation instructions and template

Product Description

The **Borla 11881 ATAK Axle-Back Exhaust** is designed for **2014-2019 Corvette C7 models** equipped with the 6.2L V8 engine. This rear section upgrade delivers an aggressive, deep exhaust note while maintaining daily driveability and minimal cabin drone. With a straight-through, multi-core muffler design and mandrel-bent 2.75" tubing, it offers improved flow and performance gains.

Constructed from full T-304 stainless steel and outfitted with quad 4.25" polished tips, the 11881 replaces only the rear exhaust segment. It does *not* include AFM or NPP valves; vehicles with factory active valve systems should disable or remove them to avoid check engine lights. Installation reuses factory mounts and requires cutting of the OEM rear exhaust section. Backed by Borla's million-mile structural warranty, this axle-back system offers a high-end upgrade with impressive sound and durability.