Description
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.
Installation Instructions
This Part Fits:
Installation Instructions
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2019-2023 | Chevrolet | Silverado 1500 | Custom |
| 2019-2023 | Chevrolet | Silverado 1500 | Custom Trail Boss |
| 2019-2024 | Chevrolet | Silverado 1500 | High Country |
| 2019-2023 | Chevrolet | Silverado 1500 | LT |
| 2019-2024 | Chevrolet | Silverado 1500 | LT Trail Boss |
| 2019-2024 | Chevrolet | Silverado 1500 | LTZ |
| 2023 | Chevrolet | Silverado 1500 | PPV |
| 2019-2024 | Chevrolet | Silverado 1500 | RST |
| 2019-2021 | Chevrolet | Silverado 1500 | SSV |
| 2019-2023 | Chevrolet | Silverado 1500 | WT |
| 2022-2024 | Chevrolet | Silverado 1500 | ZR2 |
| 2022 | Chevrolet | Silverado 1500 LTD | Custom |
| 2022 | Chevrolet | Silverado 1500 LTD | Custom Trail Boss |
| 2022 | Chevrolet | Silverado 1500 LTD | High Country |
| 2022 | Chevrolet | Silverado 1500 LTD | LT |
| 2022 | Chevrolet | Silverado 1500 LTD | LT Trail Boss |
| 2022 | Chevrolet | Silverado 1500 LTD | LTZ |
| 2022 | Chevrolet | Silverado 1500 LTD | RST |
| 2022 | Chevrolet | Silverado 1500 LTD | SSV |
| 2022 | Chevrolet | Silverado 1500 LTD | WT |
| 2019-2025 | GMC | Sierra 1500 | AT4 |
| 2022-2024 | GMC | Sierra 1500 | AT4X |
| 2019-2021 | GMC | Sierra 1500 | Base |
| 2019-2024 | GMC | Sierra 1500 | Denali |
| 2022-2024 | GMC | Sierra 1500 | Denali Ultimate |
| 2019-2023 | GMC | Sierra 1500 | Elevation |
| 2022-2023 | GMC | Sierra 1500 | Pro |
| 2019-2023 | GMC | Sierra 1500 | SLE |
| 2019-2024 | GMC | Sierra 1500 | SLT |
| 2022 | GMC | Sierra 1500 Limited | AT4 |
| 2022 | GMC | Sierra 1500 Limited | Denali |
| 2022 | GMC | Sierra 1500 Limited | Elevation |
| 2022 | GMC | Sierra 1500 Limited | Pro |
| 2022 | GMC | Sierra 1500 Limited | SLE |
| 2022 | GMC | Sierra 1500 Limited | SLT |
Customer reviews
D. Olthof
Verified
Verified
Excellent service
Called for a part that was not in the assortment, but was available from one of their partners. Product could be ordered without difficulty and was delivered quickly. Very nice communication, thank you!
Feb 25, 2024
Edo N.
Verified
Verified
Has things that normally have to go through import
Had the parts that I could really only find elsewhere on the internet via an awkward import promotion from either the UK or the US. Tuningsupply had them on the website, at a good price and they were also delivered quickly. So good service!
Aug 21, 2024
Peter B
Verified
Verified
So cheap! It was really a gamble at first....
So cheap!!! At first it was really a gamble for me to order my rims from Tuningsupply because they were so very much cheaper than elsewhere. And sure enough, on the ninth day DPD arrived at the door with my rims. Really a total of 360 euros cheaper!!!! For me a very big applause for this company.
May 7, 2024
