Alfa Romeo Giulia 2016-2018 rear diffuser: the sporty finish the standard sedan lacks
This rear diffuser transforms the plain bumper of the Alfa Romeo Giulia sedan in the Standard version, model years 2016 to 2018, into a ribbed sport-style assembly. It adopts the design of the higher trims: vertical fins, exhaust outlet surrounds, and chrome tips. Six configurations are available, from the diffuser only to the complete kit, so you only buy what your car needs.
Why a rear diffuser on a Giulia
- Six configurations to choose from: diffuser only, tips only, strips only, or combinations of two and the complete kit.
- Molded vertical fins: they give the bumper the depth that is missing from the entry-level versions.
- Chrome stainless steel tips: two round outlets that clamp onto the existing exhaust line.
- Red reflective strips: two decorative inserts that dress the ends of the bumper.
- Flexible polypropylene: PP absorbs a parking bump without cracking cleanly like rigid fiber.
- Matte black ready to install: no paint required, the color is built-in.
How to choose your configuration
If your bumper is bare, take the complete kit: you get the diffuser, the tips, and the strips all at once. If you already have an exhaust line with nice outlets, choose diffuser and strips without tips. If your original reflectors suit you, take diffuser and tips without strips. And if you are replacing a damaged part, the diffuser only, tips only, and strips only versions prevent you from having to buy the whole set again. This flexibility is rare for this type of part.
Technical specifications
Diffuser material: injected polypropylene PP, matte black finish. Tips: chrome stainless steel, two round outlets on a bracket. Strips: red reflective inserts, decorative. Stated compatibility: Alfa Romeo Giulia sedan Standard version 2016-2018, to be checked according to model and trim before installation. The Veloce and Quadrifoglio versions have a different bumper. Mounting: screws and double-sided adhesive depending on the parts. Condition: 100% new.
Installation, safety, and regulations
Allow 1 to 2 hours. The diffuser sits under the rear bumper, is located using masking tape, and is then fixed with screws in the low points and with adhesive on the flat areas. The tips slide over the exhaust outlets and are tightened with side screws: let the exhaust cool before working. Two important points. First, the red strips provided are decorative: they are not approved reflectors, and no approval marking appears on the manufacturer's visuals. The vehicle's original reflectors must remain in place and remain visible: they are mandatory and inspected. Next, a diffuser sits lower than the bumper: approach parking ramps at an angle.
Frequently asked questions
Is it made of carbon fiber?
No. The diffuser is made of matte black polypropylene. The original visuals feature a watermark mentioning carbon, but the material stated for this reference is indeed PP.
Do the red strips replace the reflectors?
No, under no circumstances. They are decorative inserts without approval. Keep and leave the car's original reflectors visible.
Will the tips fit my exhaust line?
They clamp onto round outlets of a standard diameter. Measure the outside diameter of your pipes before ordering a version with tips.
Is it compatible with a Giulia Veloce?
No. This reference is aimed at the 2016-2018 Standard version. The Veloce and Quadrifoglio bumpers have a different design.
Does the part need to be painted?
No, it is delivered in matte black ready to install. It can, however, be painted after plastic primer if you prefer a glossy black.
Does the bumper need to be drilled?
A few screws are generally necessary in the lower part, which is invisible once the part is in place. The rest is held by adhesive.
Choose exactly the configuration your bumper needs, keep your original reflectors visible, and the Giulia finally takes on the look of the higher trims.
Type: Rear bumper diffuser
Compatibility: Alfa Romeo Giulia sedan Standard 2016-2018, depending on the model
Configurations: 6 to choose from, from the diffuser only to the complete kit
Material: Injected polypropylene PP
Finish: Matte black ready to install
Tips: Chrome stainless steel, 2 round outlets
Red strips: Decorative, not approved
Installation: 1 to 2 hours, screws and adhesive
Condition: 100% new
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