Carbon Fiber Body Kits Installation Guide: Non Wide Body Kit vs Wide Body Kit Step-by-Step

Carbon Fiber Body Kits have become a staple for car enthusiasts looking to elevate their vehicle's aesthetics, performance, and aerodynamics. Lightweight, durable, and visually striking, these kits transform ordinary rides into head-turners—whether you opt for a sleek Non Wide Body Kit setup or an aggressive Wide design. However, installing Carbon Fiber Body Kits isn't a one-size-fits-all process: Non Wide Body Kit offers a straightforward upgrade, while Wide Body Kit demand more precision and modifications to fit seamlessly. In this guide, we'll break down both installation processes in detail, including key components like front bumpers, rear bumpers, and hoods, ensuring you have all the tools, tips, and tricks to get your Carbon Fiber Body Kits installed correctly—no professional shop required (though patience and attention to detail are a must).

Key Differences Between Non Wide Body Kit and Wide Body Kit

Before diving into installation, it's critical to understand why these two types of Carbon Fiber Body Kits require different approaches. Non Wide Body Kit (often called “stock-fit” kits) are designed to match your vehicle's original wheelbase and fender dimensions. They typically include front lips, side skirts, rear diffusers, spoilers, front bumpers, rear bumpers, and hoods—all engineered to bolt or adhere directly to your car's factory body lines. This makes them ideal for enthusiasts who want a subtle upgrade without major modifications.

Wide Body Kit, on the other hand, is all about stance and presence. They feature flared fenders, extended side skirts, wider front/rear bumpers, and sculpted hoods that push the vehicle's width by several inches. These kits are built to accommodate wider wheels, lower offsets, and aggressive suspension setups—perfect for those chasing a race-inspired look. However, their larger size means they often require trimming, drilling, or even suspension adjustments to fit properly—making them a better fit for experienced DIYers or those willing to invest extra time.But no vehicle body cutting is required for iMP Performance wide body kits, which is our biggest advantage.

Regardless of which you choose, Carbon Fiber Body Kits share core benefits: reduced weight compared to plastic or metal alternatives, improved aerodynamics, and a high-end finish that resists fading and damage. Now, let's dive into the installation process for each.

Non Wide Body Kit Installation (Sleek & Simple)

Non Wide Body Kit is the most beginner-friendly option—most can be installed in 6–8 hours with basic tools (adding bumpers and hoods extends the timeline slightly). The goal here is to ensure a tight, gap-free fit without altering your vehicle's original body structure. Below is a step-by-step breakdown, from prep to final touches.

1. Gather Tools & Materials

You don't need a fancy garage to install Non Wide Body Kit—just these essentials:

· Basic hand tools: Screwdrivers (Phillips/flathead), socket set (10–19mm), torque wrench

· Plastic pry bars (to avoid scratching paint)

· Adhesive: 3M automotive double-sided tape (heavy-duty, 1/8” thickness recommended)

· Surface prep: Isopropyl alcohol, microfiber cloths, sandpaper (400–800 grit)

· Safety gear: Work gloves, safety glasses

· Optional: Rivet gun (for extra security), touch-up paint (to cover small scratches), hood prop rod or hydraulic struts (if not included with the kit)

2. Pre-Installation Prep (Critical for Fit & Durability)

Before attaching your Carbon Fiber Body Kits, proper prep ensures the parts adhere well and last. Start by cleaning your vehicle's body thoroughly—dirt, wax, or grease will prevent the adhesive from bonding. Use isopropyl alcohol and a microfiber cloth to wipe down the areas where the kit will attach (bumper mounting points, hood hinges, fender edges, etc.).

Next, test-fit the Carbon Fiber Body Kits components—front bumper, rear bumper, hood, front lip, side skirts, and rear diffuser—one by one. Lay each part on your vehicle without attaching it—this lets you check for gaps or misalignment. If a part is slightly off, use 400-grit sandpaper to gently sand the edges (avoid over-sanding—carbon fiber is delicate!). For parts with pre-drilled holes, align them with your car's factory mounting points to ensure a perfect fit.

Pro tip: Let the Carbon Fiber Body Kits acclimate to room temperature for 1–2 hours before installation. Cold carbon fiber can be brittle, and warm parts conform better to your vehicle's curves.

3. Step-by-Step Installation

Front Bumper (Non Widebody)

1. Disconnect the negative terminal of your car's battery to avoid electrical issues (many front bumpers have fog light or sensor wiring).

2. Remove the factory front bumper: Use a socket set to take off screws and bolts from the top (under the hood), sides (near fenders), and bottom (under the vehicle). Use a plastic pry bar to gently release clips holding the bumper in place—don't yank, as this can damage paint or clips.

3. Disconnect any wiring harnesses (fog lights, parking sensors, camera) from the factory bumper and set it aside.

4. Test-fit the carbon fiber front bumper: Align it with the fenders and hood to ensure even gaps. If needed, sand the edges slightly for a snug fit.

5. Reconnect the wiring harnesses to the carbon fiber bumper (double-check that sensors/cameras are properly positioned).

6. Secure the bumper: Start with the top bolts (under the hood), then the side bolts (near fenders), and finally the bottom screws. Use the hardware included with your Carbon Fiber Body Kits—avoid over-tightening.

7. Apply 3M double-sided tape along the edges where the bumper meets the fenders and hood for extra adhesion. Press firmly to activate the tape.

Rear Bumper (Non Widebody)

1. Remove the factory rear bumper: Similar to the front, remove screws from the top (inside the trunk), sides (near rear fenders), and bottom. Release clips with a plastic pry bar and disconnect wiring (reverse lights, backup camera, sensors).

2. Test-fit the carbon fiber rear bumper: Ensure alignment with rear fenders and trunk lid. Sand edges if gaps are uneven.

3. Reconnect wiring harnesses to the carbon fiber bumper.

4. Secure the bumper with bolts and screws (top, sides, bottom) using the kit's hardware.

5. Apply 3M tape along the edges where the bumper meets the fenders—press firmly for a tight bond.

Carbon Fiber Hood (Non Widebody)

1. Open the factory hood and prop it up. Disconnect the hood prop rod (if equipped) and any wiring (hood latch sensor, washer fluid nozzle).

2. Remove the factory hood: Have a friend help hold the hood to avoid damage. Use a socket set to remove the bolts from the hood hinges (one person holds the hood, the other removes bolts). Set the factory hood aside carefully.

3. Test-fit the carbon fiber hood: Align it with the front bumper and fenders. Check that the hood latch lines up with the factory latch mechanism. Adjust the hinge mounts if needed (most Carbon Fiber Body Kits include adjustable spacers for alignment).

4. Secure the carbon fiber hood to the hinges with the included bolts—tighten gently (don't over-tighten, as this can warp the hood).

5. Reconnect the washer fluid nozzle and any wiring (hood latch sensor). Install the hood prop rod or hydraulic struts (if included with the kit) for support.

6. Test the hood latch: Close the hood gently to ensure it latches securely. Adjust the latch striker if the hood is misaligned (too high/low or off-center).

Front Lip, Side Skirts, Rear Diffuser/Spoiler (Previously Covered, Updated for Bumper/Hood Alignment)

1. Front Lip: Align with the carbon fiber front bumper (not the factory bumper) and secure with screws and 3M tape—ensure gaps between the lip and bumper are even.

2. Side Skirts: Align with the bottom of the carbon fiber front/rear bumpers and secure with screws and tape—check that skirts flow seamlessly between bumpers.

3. Rear Diffuser/Spoiler: Mount to the carbon fiber rear bumper (diffuser) or trunk lid (spoiler), ensuring alignment with the bumper's edges.

4. Post-Installation Checks

After installing your Non Wide Body Kit, take a step back and inspect:

· Gaps: Ensure the front/rear bumpers, hood, and other components have even gaps (1–2mm is ideal) with no uneven spaces.

· Security: Give each component a gentle tug to confirm it's attached tightly (adhesive will fully cure in 24 hours). Test the hood latch twice to ensure it doesn't pop open.

· Wiring: Turn on the car and test fog lights, reverse lights, sensors, and cameras to ensure they work properly.

· Paint Protection: Check for any scratches on your vehicle's paint—touch up with matching paint if needed.

Pro tip: Avoid washing your car for 24 hours after installation to let the adhesive set. When you do wash it, use a mild soap and soft sponge to avoid scratching the carbon fiber.

Wide Body Kit Installation (Aggressive & Precise)

Wide Body Kit is for enthusiasts who want to stand out—think flared fenders, wider bumpers, sculpted hoods, and a stance that demands attention. However, their larger size means installation is more complex: you'll likely need to trim fenders, adjust suspension, and modify mounting points for bumpers and hoods. This process takes 10–14 hours (or more) for beginners, so set aside a full weekend. Let's break it down.

1. Gather Tools & Materials

In addition to the tools for Non Wide Body Kit, you'll need:

· Cutting tools: Dremel with cutting wheel, jigsaw (for fender/bumper trimming)

· Measuring tools: Tape measure, masking tape, marker

· Drilling tools: Drill with carbide bits (for new mounting holes)

· Body work supplies: Body filler (for gaps), sandpaper (200–800 grit)

· Suspension tools: Jack, jack stands, wheel chocks (for adjusting ride height)

· Optional: Wheel spacer (to fit wider wheels), alignment tools (or plan a professional alignment), hood pins (for extra security with Wide hoods)

2. Pre-Installation Prep (More Than Just Cleaning)

Wide Body Kit requires more prep than Non Wide Body Kit—here's what to do:

1. Remove Factory Parts: Take off the front/rear bumpers, fenders, side skirts, and hood. This gives you full access to the body structure.

2. Test-Fit & Mark: Lay the Widebody fenders, bumpers, and hood on your vehicle. Use masking tape to mark:

o Where fenders overlap with the factory body (trimming lines)

o Where bumpers need to be trimmed to fit flared fenders

o Hood alignment with Widebody front bumper and fenders

3. Measure Wheel Clearance: Wide body kit is designed for wider wheels, so check if your current wheels fit. If not, you'll need wheel spacers (20–30mm is common) or new wheels with lower offsets.

4. Suspension Adjustment: Lower your vehicle's ride height (if needed) to match the Wide's stance. Use jack stands to support the car—never work under a vehicle held only by a jack.

3. Step-by-Step Installation

Fender Trimming (Critical for Bumper/Hood Fit)

Widebody fenders are wider than factory fenders, so you'll need to trim the factory body to make room—this directly impacts how well bumpers and hoods fit.

1. Use masking tape to mark the trim line on the factory fender wells (follow test-fit marks).

2. Put on safety glasses and use a Dremel or jigsaw to cut along the marked line—cut slowly, leaving a 1/4” buffer (sand later).

3. Sand the cut edges with 200-grit sandpaper to smooth them—prevents rust and ensures fender-bumper alignment.

4. Test-fit the carbon fiber fender again—sand edges slightly if too tight.

Widebody Front Bumper Installation

1. Trim the carbon fiber front bumper (if needed): Some Widebody bumpers have extended flares that require minor trimming to match the flared fenders. Use sandpaper to smooth trimmed edges.

2. Test-fit the bumper: Align it with the flared fenders—gaps should be even. Mark new mounting points on the factory bumper brackets (Wide bumpers may not line up with factory holes).

3. Drill new mounting holes in the bumper brackets using carbide bits. Apply rust inhibitor to drilled holes.

4. Reconnect wiring harnesses (fog lights, sensors, camera) to the bumper.

5. Secure the bumper: Use bolts to attach it to the brackets—start with top bolts, then sides (aligning with fenders), then bottom. Apply 3M tape along the fender-bumper seam for extra adhesion.

6. Fill any small gaps between the bumper and fenders with body filler—sand with 400–800 grit sandpaper for a seamless finish.

Widebody Rear Bumper Installation

1. Trim the widebody rear bumper (if needed) to match the rear flared fenders. Sand edges smooth.

2. Test-fit the bumper with rear fenders and trunk lid—adjust for even gaps.

3. Mark new mounting points on factory rear bumper brackets and drill holes (apply rust inhibitor).

4. Reconnect wiring (reverse lights, camera, sensors) to the bumper.

5. Secure the bumper with bolts (top, sides, bottom) and apply 3M tape along fender-bumper seams.

6. Use body filler for small gaps—sand to blend with the body.

Widebody Hood Installation

1. Test-fit the carbon fiber hood: Align it with the Widebody front bumper and flared fenders. Check that the hood's leading edge matches the bumper's top edge—trim the hood's front lip slightly if needed (use sandpaper).

2. Adjust hood hinges: Most Wide hoods require adjustable hinges or spacers to align with the wider fenders. Install the hinges to the hood and test-fit on the vehicle—adjust until gaps are even.

3. Secure the hood to the hinges with included bolts—tighten gently to avoid warping.

4. Install hood pins (recommended for Wide hoods): Mark drill points on the hood and front bumper reinforcement. Drill holes, install pins, and test that they lock securely (adds safety at high speeds).

5. Reconnect washer fluid nozzles and wiring (hood latch sensor).

6. Test the hood latch and pins: Close the hood fully to ensure it latches and pins lock—adjust striker or pins if misaligned.

Suspension & Wheel Setup

1. Install wheel spacers (if needed) to ensure wheels don't rub against Widebody fenders or bumpers.

2. Lower your vehicle's ride height (coilovers or lowering springs) to match the Wide's stance.

3. Get a professional wheel alignment—non-negotiable. Wide body kit changes track width, so alignment ensures safe handling and prevents tire wear.

4. Post-Installation Checks

After installing your Wide Body Kit, perform these checks:

· Wheel Clearance: Drive slowly over speed bumps and turns—ensure wheels don't rub fenders or bumpers. Add spacers or adjust ride height if needed.

· Security: Check all bolts, screws, and hood pins—tighten any loose parts (vibration can loosen connections).

· Aerodynamics: Ensure bumpers and hood are aligned to reduce wind noise and improve airflow.

· Rust Prevention: Apply rust inhibitor to trimmed fenders and drilled holes.

· Wiring: Test all lights, sensors, and cameras—fix any loose connections.

Pro Tips for Installing Carbon Fiber Body Kits (Avoid Common Mistakes)

Whether you're installing Non Wide Body Kit or Wide Body Kit, these tips will save you time, money, and frustration:

1. Never Skip Test-Fitting: Test-fit every component (bumpers, hood, fenders) multiple times—once adhesive is set or holes are drilled, adjustments are nearly impossible.

2. Use High-Quality Adhesive: Cheap double-sided tape fails—invest in 3M automotive-grade tape for bumpers and hood edges.

3. Don't Over-Tighten Bolts: Carbon fiber is strong but brittle—over-tightening cracks the material. Use a torque wrench (follow kit instructions).

4. Protect Carbon Fiber: Cover parts with microfiber cloths when working—avoid scratches. Don't use harsh chemicals (acetone) on the clear coat.

5. Ask for Help: Bumpers and hoods are heavy—have a friend hold them while you secure them to avoid damage.

6. Plan for Curing Time: Adhesive and body filler need 24–48 hours to cure—avoid aggressive driving during this period.

7. Hood Pin Safety: For Wide hoods, skip hood pins at your peril—high speeds can lift unlatched hoods.

8. Bumper Wiring: Label wiring harnesses before disconnecting—avoids confusion when reconnecting.

Final Thoughts on Carbon Fiber Body Kits Installation

Carbon Fiber Body Kits are a game-changer for any car enthusiast—they blend style, performance, and durability in a way no other upgrade can. Non Wide kit offers a simple, subtle upgrade (including bumpers and hoods) perfect for beginners, while Wide body kit delivers an aggressive stance that turns heads. Regardless of which you choose, the key to success is patience, precision, and proper prep.

By following the steps in this guide, you'll have your Carbon Fiber Body Kits (including front/rear bumpers and hood) installed correctly—no professional shop required. Remember: take your time, test-fit every part, and don't rush trimming or drilling. With the right tools and attitude, you'll transform your vehicle into a custom ride that reflects your style. Whether you're hitting the streets or the track, your Carbon Fiber Body Kits will not only look amazing but also enhance performance for years to come.