# Borla 2019 Chevrolet Silverado/Sierra 1500 6.2L Atak 3.5in Diameter Polyphonic Harmonizer

Replace the small muffler behind the primary muffler in the BORLA® S-Type system with Polyphonic Harmonizer 60680 to attain the ATAK® sound level (louder than S-Type). BORLA®'S Polyphonic Harmonizer Technology utilizes patented units that contain pipes of different diameters and lengths to create multiple exhaust notes that harmonize to deliver a clean, rich, full-bodied sound to the BORLA® mufflers. The mufflers then enhance this sound to the character and volume appropriate for our Touring, S-Type and ATAK® systems. Built from premium T-304 stainless steel, superior to T-400 series (such as 409), to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer numerical control (CNC) manufacturing ensures an accurate fit. Best of all, BORLA® stands behind every Polyphonic Harmonizer with a Million-Mile Warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.

-   Can be used in select Borla(r) GM truck S-Type sound level systems to attain the ATAK(r) sound level
-   Features Polyphonic Harmonizer technology

This Part Fits:

Year

Make

Model

Submodel

2020-2021

Chevrolet

Silverado 1500

Custom Trail Boss

2019-2026

Chevrolet

Silverado 1500

High Country

2020-2026

Chevrolet

Silverado 1500

LT Trail Boss

2019-2026

Chevrolet

Silverado 1500

LTZ

2020-2026

Chevrolet

Silverado 1500

RST

2022-2026

Chevrolet

Silverado 1500

ZR2

2019-2026

GMC

Sierra 1500

AT4

2022-2026

GMC

Sierra 1500

AT4X

2019-2026

GMC

Sierra 1500

Denali

2022-2026

GMC

Sierra 1500

Denali Ultimate

2019-2026

GMC

Sierra 1500

SLT

## Details

- **Price:** 325.81 CAD
- **Vendor:** Borla
- **Type:** Clamps
- **Tags:** ClearanceItem:N, Core:N, CorePrice:0, EPA:N/A, Fabrication>Clamps, fits_2020-2021`Chevrolet`Silverado 1500`Custom Trail Boss~2019-2026`Chevrolet`Silverado 1500`High Country~2020-2026`Chevrolet`Silverado 1500`LT Trail Boss~2019-2026`Chevrolet`Silverado 1500`LTZ~2020-2026`Chevrolet`Silverado 1500`RST, fits_2022-2026`Chevrolet`Silverado 1500`ZR2~2019-2026`GMC`Sierra 1500`AT4~2022-2026`GMC`Sierra 1500`AT4X~2019-2026`GMC`Sierra 1500`Denali~2022-2026`GMC`Sierra 1500`Denali Ultimate~2019-2026`GMC`Sierra 1500`SLT, LTL:N, MPN:60680, Non-CARB:N, Prop65:Y, SpecialOrder:N, TURN14_ID:314823

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 325.81 CAD | In stock |

## Images

- Photo - Primary
- User 9

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/borla-2019-chevrolet-silverado-sierra-1500-6-2l-atak-3-5in-diameter-polyphonic-harmonizer)
> Updated: 2026-07-16