Tesla Model Y Ascension Rear Carbon Fiber Diffuser With Hitch Cover & Tow Hook Cover

There is a 5-year structural warranty on fitment and functionality for the original owner. Cosmetic outcomes are excluded on unprotected parts, which matters here because the rear fascia lives in a rock-chip zone. The base coat is provided as-is so you can clear coat or wrap it. We recommend paint protection film before installation specifically because of where this part sits on the car.

It installs in the factory location as a replacement fascia rather than requiring holes cut into the body, but it is still a full lower-fascia swap that we recommend a professional handle. The complexity is in removing the OEM fascia and transferring your reflectors, not in modifying the car permanently. If you want a purely bolt-on reversible rear piece instead, the trunk spoiler is the simpler route.

It is a full replacement rear diffuser, not a stick-on cover. It swaps out the OEM lower rear fascia entirely and includes carbon hitch and tow hook covers so you keep towing and track functionality. That is a meaningful difference from cosmetic diffuser wraps: this piece replaces the factory part and carries the design into a more aggressive, track-focused shape while keeping the Model Y’s rear lines. It is also one of the three pieces in the 2020-2025 carbon aero package if you want the matched front-to-rear set.

It replaces three factory pieces: the rear fascia lower (1494006-00-B), the tow hitch cover (1494009-00-A), and the tow hitch cover (1494009-00-B). It reuses your original rear reflectors, which are not included, since most owners still have theirs on the car. If yours are damaged, buy replacement reflectors before you start so the install goes cleanly in one pass.

Honestly, at a normal Model Y ride height the aero gain is limited. The car sits tall enough that ground effects are largely negated, so if pure efficiency is your goal you may not see significant numbers. This piece is primarily a visual and construction upgrade that carries the Ascension design language to the rear. Lowering the car is what unlocks more from any underbody aero.

It is built for the 2020 to 2025 first-generation Model Y rear fascia, matching the factory diffuser line that dips in the center around the tow hitch cover. It is not shaped for the 2026+ Juniper. Confirm your generation before ordering, because the mounting and surfaces are specific to the earlier car’s rear bodywork and the Tesla part numbers it replaces.

Professional installation is highly recommended. This is a full rear fascia replacement rather than a bolt-on trim piece, so it involves more than snapping something into place. Our Hawthorne team can handle it and quote you an appointment if you are in the Los Angeles area. Getting the panel gaps and reflector reuse right is where a professional earns their keep on this one.

The diffuser, tow hook cover, and hitch cover are all prepreg carbon fiber, built in an autoclave with our dry-carbon-kevlar backing and integrated resin for strong strength-to-weight. That said, carbon is more susceptible to surface damage than the factory plastic, and this sits low where rocks hit. The aero effectiveness is not degraded by chips, but PPF before install protects the finish.

You choose gloss or satin at checkout. Gloss shows a deep, high-shine weave; satin is more matte and understated. Both are base coats displaying the carbon, and both benefit from clear coat or paint protection film given how low the diffuser sits. If you plan to protect one finish more aggressively, gloss shows chips more readily, so many owners add PPF to a gloss diffuser.

Yes. It was designed to pair with the Model Y front fascia and the high-efficiency trunk spoiler to build a coordinated aero look, the same direction we took on the car we campaigned as the world’s fastest SUV. Running the rear diffuser alongside a matched front piece keeps the styling balanced rather than aggressive only at one end.

Unplugged Performance offers a comprehensive warranty on all parts and installations performed by our certified technicians. Warranty coverage applies to defects in materials and workmanship on items including lowering springs, coilovers, big brake kits, brake pads, stainless steel brake lines, shocks, and more. Should any covered part fail under normal use or display premature wear, we will repair or replace it at no additional cost—assuming the component was installed by us or at one of our authorized partners.

This warranty is valid for 2 years or 24,000 miles, whichever comes first, excluding consumable products like brake pads, rotors, and tires, starting from the installation date. Coverage extends to labor for warranty repairs when performed by Unplugged Performance or an authorized installer. It does not cover damage resulting from misuse, accidents, off‑road use, improper installation not done by us, or modifications that aren’t factory-approved.

To file a warranty claim, simply contact our service team. We’ll guide you through inspection, shipping (if needed), and repair or replacement logistics. transparencia and top-tier support are what you can expect from Unplugged.

Installing aftermarket parts does not automatically void your Tesla warranty. Under the Magnusson-Moss Warranty Act (www.sema.org/sema-enews/2011/01/ftc-validates-right-to-install-aftermarket-parts), a manufacturer cannot void your warranty simply because you installed aftermarket parts. Tesla must prove that the aftermarket part caused the specific failure in question to deny a warranty claim. UP recommends retaining all factory parts to allow reverting to stock if needed. 

Unplugged Performance processes orders quickly, typically within 1–2 business days after placement. For U.S. customers, orders under $50 usually ship via FedEx SmartPost with an estimated delivery time of 2–7 business days. Larger items like body kits or bumpers may ship via freight carriers with curbside delivery; customers will be contacted to schedule a delivery window. International shipping is available to most countries, with shipping costs calculated at checkout. Delivery times abroad vary, generally ranging from 5 to 16 business days depending on destination. Import duties or taxes are the customer’s responsibility. To ensure a smooth shipping experience, provide accurate contact information during checkout. For specific questions or shipping quotes, Unplugged Performance’s support team is available to assist.