CMST Infiniti Q50 Ultimate Edition Carbon Kit
The CMST Infiniti Q50 "Ultimate Edition" is a five-piece aero package for the Infiniti Q50 sports sedan, combining FRP-and-carbon front and rear bumpers, carbon side skirts and a stainless-steel exhaust. The kit reshapes the Q50's face and tail with mixed FRP-and-carbon construction, adds carbon side skirts to lower the stance, and swaps in a Q60-style grille to sharpen the front. It is a styling-led build for owners who want their Q50 to look like the more aggressive Q60 coupe while keeping the sedan's four-door usability.
- Vehicle: Infiniti Q50 sports sedan
- Material options: FRP-and-carbon (front and rear bumpers) and carbon fibre (side skirts, front lip and corners)
- Key pieces: Front bumper, rear bumper, side skirts, carbon front lip and corner pieces, exhaust
- Grille: Q60-style grille swap for a sharper front
- Exhaust: Stainless-steel system
The brand context: Infiniti and the Q50
Infiniti is Nissan's luxury division, launched in North America in 1989 and known for distinctive design and strong drivetrains. The Q50 is its compact sports sedan, and it makes a good base for an aero kit: it has the long bonnet and short rear deck of a rear-drive sports saloon, and its VR-series and hybrid powertrains give it real pace. The Ultimate Edition kit builds on that foundation, taking the Q50's clean factory lines and sharpening them into something closer to the Q60 coupe's road presence.
The approach is to keep what works about the Q50 — its proportions and four-door practicality — and add aggression where it counts: the front face, the side stance and the rear. If you are researching the range, AME carries the full CMST catalogue and the dedicated Infiniti body kit collection.
The front: bumper, lip and Q60 grille
The front of the kit does the heavy lifting on the car's identity. The front bumper is built in mixed FRP-and-carbon construction, with a carbon front lip and carbon corner pieces ("包角") that frame the lower front and add the bare-weave detail. The standout change is the grille: swapping in a Q60-style grille gives the Q50 the sharper, more aggressive mesh of Infiniti's coupe, instantly modernising the face. Together the new bumper, carbon lip and Q60 grille transform the front end while still reading as a factory-quality piece. These front parts sit in the CMST front lip for Infiniti and CMST bumper for Infiniti ranges.
The sides: carbon skirts and stance
The carbon side skirts are a full carbon-fibre piece rather than mixed construction, and they do two things. Visually, they lower the Q50 and connect the front and rear into one continuous lower line, which is key to making a sedan look planted rather than tall. Functionally, they tidy the airflow along the flanks between the wheels. On the Q50's relatively long body, the skirts have a strong effect on the side profile, dropping the apparent ride height and adding the weave detail that ties into the front lip. The skirts are listed under CMST side skirts for Infiniti.
The rear: bumper, diffuser and exhaust
At the back, the rear bumper continues the FRP-and-carbon theme, with a carbon diffuser-style lower section that frames the exhaust and pulls the tail visually towards the road. Behind it sits a stainless-steel exhaust system, chosen for corrosion resistance and a stronger note. The combination of the reshaped rear bumper, carbon diffuser and stainless exhaust gives the Q50 a far more purposeful rear than the factory car, completing the transformation from any angle. The exhaust options are in the CMST exhaust for Infiniti collection.
Mixed FRP-and-carbon construction explained
The Ultimate Edition kit deliberately mixes materials within single parts, and understanding why helps set expectations on weight, finish and care.
| Material | How it is made | Role in this kit |
|---|---|---|
| Carbon fibre | Carbon cloth and resin formed in a mould | Side skirts, front lip, corners and diffuser sections for weave finish and light weight |
| FRP (fibreglass) | Glass fibre and resin formed in a mould | The main bumper bodies, which are large painted shapes |
| Stainless steel | SUS-grade steel fabricated into the exhaust | Corrosion-resistant exhaust with a stronger note |
Combining FRP for the large bumper bodies with carbon for the visible accent panels keeps the cost sensible while putting the weave finish where it is seen. The FRP sections are painted body colour, and the carbon sections are left bare under clearcoat.
Fitment and finish
Because the bumpers replace the factory items, this is a workshop job. Plan for trial-fitting the bumpers, checking panel gaps against the adjacent guards and lights, and painting the FRP sections to match your Infiniti colour so they disappear into the body. The carbon panels carry a clearcoat that is UV-sensitive, so undercover parking and a UV-stable coating help keep the weave from yellowing. The Q60 grille swap and the exhaust should be fitted and checked by a workshop familiar with the Q50 so everything lines up and functions correctly. The full set is available as the CMST body kit for Infiniti.
Frequently asked questions
Does this kit fit my Infiniti Q50?
The kit is designed for the Infiniti Q50 sports sedan. Because Infiniti revised the Q50's front styling during its production run, confirm your exact model year and front-end design so the bumper and Q60-style grille match your car before ordering.
Is the kit carbon fibre or FRP?
It is a mix. The front and rear bumper bodies are FRP-and-carbon construction, while the side skirts, front lip, corner pieces and diffuser sections are carbon fibre. The FRP is painted to match the body and the carbon is left bare under clearcoat. The exhaust is stainless steel.
What is the Q60 grille swap?
The kit replaces the factory Q50 grille with one styled on the Infiniti Q60 coupe, which has a sharper, more aggressive mesh. It is a popular change because it modernises the Q50's face and ties the sedan visually to Infiniti's coupe without major bodywork.
Do the carbon and FRP pieces need any special care?
The FRP sections need painting to match your car's colour during the install. The exposed carbon is protected by a clearcoat that degrades under prolonged UV, so park undercover where you can, wash with pH-neutral products and consider a UV-stable ceramic coating or paint protection film.
Should I have it professionally fitted?
Yes. The kit replaces the factory bumpers and includes a grille swap and exhaust, so correct panel gaps, secure mounting, colour-matched paint and proper exhaust fitting all need a workshop. Professional fitment protects the parts and gives the clean, flush result the kit is designed for.
Build your Q50 with AME Motorsport
If you want to give your Q50 the Ultimate Edition treatment, AME Motorsport can supply the CMST FRP, carbon and exhaust pieces and advise on fitment here in Australia. Start with the Infiniti body kit range to see the components, then get in touch to confirm the right pieces for your Q50.