As popular as the LS swap has become over the last twenty years, one of the biggest gripes about such placement has been the aesthetic — especially when it pertain with doing so in a more vintage vehicle. To some, the modern engine’s look doesn’t nice too well with the more timeless styling of an olde car. So, Holley has cured that little issue with this new RetroFilter kit.
It combines the functionality of a modern LS intake manifold, complete with a drive-by-wire throttle body, but also lends a more traditional look to the engine compartment. Offered in two different sizes and finishes, you can spec a Holley RetroFilter kit out to fit your personal taste and needs.
Official Release:
RetroFilter air cleaners cleverly hide an LS drive-by-wire throttle body inside to maintain a low height and classic looks. Utilizing a hidden opening in the base to hide unsightly wiring from the throttle body, this trick air cleaner allows you to experience all the benefits of modern technology and keep the vintage look you want. Pair with any Holley intake manifold with a 4150/4160 square bore flange for maximum aesthetics and performance.
The opening is 92mm but any 4-bolt pattern LS throttle body will physically fit. We recommend the LS2/LS3/LS7 style but the L33, L76, and L92 should also fit. *Requires adapter to connect to 4150/4160 square bore flange style manifold – Holley EFI part # 17-93 is recommended. All part numbers in this series: 120-500 – 16-Inch DBW Air Cleaner – Chrome 120-501 – 16-Inch DBW Air Cleaner – Black 120-520 – 14-Inch Dual Snorkel DBW Air Cleaner – Chrome 120-521 – 14-Inch Dual Snorkel DBW Air Cleaner – Black
Features:
- Allows full EFI functionality stealthily hidden within a traditional looking air cleaner package
- Each kit includes a 3-inch tall, pre-oiled, washable and reusable premium cotton gauze filter element
- Available in Black and Chrome finishes
- Adapts to LS style drive-by-wire throttle bodies found on the LS2, LS3, LS7, etc.
- Can be installed on any vehicle running a top mounted 4150/4BBL EFI capable intake manifold with LS3 DBW wiring components
- Stamped aluminum lid and base for optimal durability and light weight
Rick Seitz is the owner and founder of GMEFI Magazine, and has a true love and passion for all vehicles. When he isn’t tuning, testing, or competing with the brand’s current crop of project vehicles, he’s busy tinkering and planning the next modifications for his own cars.
