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Aero Kits
Porsche 997.1 Front Lip & Rear Diffuser – Polyurethane Aero Upgrade (2005–2008)
4.9 · 31 reviews- Made to order in Newport Beach, California
- Free US shipping over $[X] / flat freight on bumpers
- 30-day returns, unpainted
- Lifetime crack warranty on polyurethane
Questions? Talk to a 911 owner: (619) 690-5081
- Fits
- Porsche 911 997.1 Carrera, Carrera S, Carrera 4, Carrera 4S (2005–2008)
- Does not fit
- GT3, GT2, or Turbo front bumpers without modification.
- Material
- Flexible, crack-resistant polyurethane
Full product description
How Easy is it to Install?
The BetterBodies Motorsport Porsche 911 997.1 Lip + Diffuser Kit is designed for OEM-style fitment, with both components molded to match the precise factory body lines of the 2005–2008 997.1 generation. Each part features pre-marked mounting points for accurate positioning. The front lip includes pre-installed 3M automotive-grade double-sided tape and the necessary mounting hardware for secure attachment, while the rear diffuser is designed to integrate directly with the factory bumper’s mounting locations. All polyurethane parts require standard body shop prep (scuff, prime, paint) if you plan to color match them to your Porsche. While confident DIY installers can complete the process, we recommend professional installation to ensure proper alignment and a flawless finish. If the kit is in stock, it will ship within 24–48 hours; if backordered, please allow 3–8 business days for dispatch.
Appearance
This two-piece aero kit delivers a performance-focused enhancement to both the front and rear of the Porsche 997.1. The front lip lowers and sharpens the car’s nose, creating a more aggressive stance, while the rear diffuser adds a motorsport-inspired touch to the back end. Together, they form a cohesive upgrade that elevates the vehicle’s road presence without overshadowing its timeless Porsche styling.
What is Polyurethane?
Both parts are crafted from our proprietary GT3TEK polyurethane blend, providing the ideal balance of durability and flexibility. Unlike fiberglass or ABS plastic, polyurethane can flex under stress and return to its original shape, making it highly resistant to cracks, chips, and breakage. This flexibility also simplifies installation, allowing for slight adjustments to achieve OEM-quality fitment.
Performance Capabilities
Beyond visual appeal, these parts contribute to subtle aerodynamic improvements. The front lip helps reduce lift by managing airflow under the car, while the diffuser enhances rear airflow separation for improved stability at speed. Together, they provide a more planted, confidence-inspiring driving experience without increasing drag.
Will it Crack or Break?
ABSOLUTELY NOT - Polyurethane is impact-resistant and well-suited for real-world driving conditions. It flexes upon contact with curbs, steep driveways, or road debris, then returns to its original form. Most impacts leave only minor cosmetic marks, which can be refinished if desired. Scrape guards for the front lip are recommended for additional protection.
Exact Fitment (Models & Years)
Fits: Porsche 911 997.1 Carrera, Carrera S, Carrera 4, Carrera 4S (2005–2008)
Does NOT fit: GT3, GT2, or Turbo front bumpers without modification.
What’s Included
-
Porsche 911 997.1 Front Lip in GT3TEK Polyurethane
-
Porsche 911 997.1 Rear Diffuser in GT3TEK Polyurethane
-
Pre-installed 3M automotive-grade tape (where applicable)
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Mounting hardware (where applicable)
-
Basic installation guide (QR code/link)
Shipping & Availability (Worldwide)
We ship worldwide from our California facility. In-stock kits ship within 24–48 hours (Mon–Fri), while backorders dispatch within 3–8 business days. US orders typically arrive in 2–7 business days, while international shipments average 5–12+ business days depending on customs clearance. All products are packaged securely to prevent damage or deformation during shipping.
-
01
Test-fit first
Offer the part up to the car before any prep or paint. Returns are accepted unpainted only, so confirm the fit first.
-
02
Prep the surface
Scuff with a fine grit, clean with a plastic-safe degreaser and lay down an adhesion promoter suited to the material.
-
03
Paint to match
On polyurethane, have your painter add flex additive to primer and color so the finish moves with the part.
-
04
Mount & check gaps
Fit to the bumper, check the panel gaps side to side, then secure. A body shop gets you a factory-match finish.
Stuck mid-install? Call a 911 owner on our team: (619) 690-5081
- Brand
- BetterBodies Motorsport
- Category
- Aero Kits
- SKU
- —
- Material
- Flexible, crack-resistant polyurethane
- Finish
- Ships unpainted, ready for prep & paint
- Made in
- Newport Beach, California
Will this fit my car?
Each part is shaped for one chassis and year range, listed in the title and the Fitment tab. If your car is modified or a changeover year, call us before you order and we'll confirm it.
Does it arrive painted?
No. It ships unpainted so your body shop can color-match it to your car. Test-fit before painting, because returns are accepted unpainted only.
Can I install it myself?
Plenty of owners do. Follow the Install & paint steps, and lean on a professional body shop for a flawless, factory-match finish.
How fast does it ship?
Every part is made to order in Newport Beach, California. US shipping is free over $[X], and bumpers ship at a flat freight rate.
Owner reviews
Driven, fitted, reviewed
Based on 31 reviews
Verified owner reviews will appear here.
Why polyurethane
Built to flex, not to crack.
Low aero lives inches off the road. We mold ours in Newport Beach from flexible polyurethane, so it shrugs off the driveways and speed bumps that split fiberglass.
Polyurethane
Fiberglass
On impact
Flexes and springs back
Rigid, cracks or chips
Driveways & bumps
Built to take the scrape
One hit can mean a repair
Fit out of the box
Molded to factory lines
Often trimmed and filled
Long term
Lifetime crack warranty
Filler, sanding, repaint
$899.99
