Big Brake Kits Guide
Best Big Brake Kits for the
2005 – 2010 Chrysler 300: Every Kit Compared
A complete comparison of every big brake kit available for the 2005-2010 Chrysler 300 — covering the 2.7L V6, 3.5L V6, 5.7L 300C Hemi, and 6.1L 300C SRT8. Stopping power, noise, dust, pricing, and fitment notes for Brembo, Baer, and Wilwood.
At a Glance
Quick Comparison
| Brand / Kit | Stopping Power | Noise | Performance Over Stock | Dust | Fits | Price | |
|---|---|---|---|---|---|---|---|
| Baer 14" Pro+ Front | Excellent | Moderate | Excellent | Moderate | 300, 300C (excl. SRT8) |
|
SHOP → |
| Baer 14" Pro+ Rear | Very Good | Moderate | Very Good | Moderate | 300, 300C (excl. SRT8) |
|
SHOP → |
| Wilwood AERO4 Rear | Excellent | Quiet | Excellent | — | 300 2.7/3.5L RWD |
|
SHOP → |
| Wilwood AERO6 Front | Excellent | Quiet | Excellent | — | 300, 300C RWD (excl. SRT8) |
|
SHOP → |
| Baer 15" Extreme Front | Excellent | Moderate | Excellent | Low | 300, 300C (excl. SRT8) |
|
SHOP → |
| Brembo GT 4-Piston Front | Excellent | Moderate | Excellent | — | 300, 300C (excl. AWD & SRT8) | $3,995 | SHOP → |
| Brembo Gran Turismo Drilled Front | Excellent | Very Quiet | Excellent | High | 300C, 2005–2008 |
|
SHOP → |
| Brembo GT 8-Piston Front | Excellent | Very Quiet | Excellent | High | 300C SRT8 only | $5,295 | SHOP → |
Important
What to Know Before You Buy
Wheel Size Requirements
Big brake kits often require larger wheels (e.g., 18" or 20" minimum). The Baer 14" Pro+ and 15" Extreme kits need 18" wheels; Brembo and Wilwood kits typically require 18" or 20". Check fitment before buying.
Pad Options
Many kits offer multiple pad compounds (street, track). Baer and Wilwood offer slotted, drilled, or plain rotor options. Brembo kits include high-performance pads. Choose based on your use case.
Front vs. Rear vs. Full Kit
Front-only upgrades are common and deliver the biggest improvement. For balanced braking, pair a front kit with a rear kit. Baer and Wilwood sell front and rear separately; Brembo offers both.
Brake Fluid & Bedding
Flush brake fluid when installing. Follow the bedding procedure for optimal performance.
Baer 14" Pro+ Front Big Brake Kit
The Baer 14" Pro+ Front Big Brake Kit is the most affordable entry into big brakes for the 2005-2010 Chrysler 300. Baer ships fully assembled hubs with bearings and races pre-installed and packed with Redline synthetic grease, so installation is straightforward. Choose from Slotted Only, Drilled & Slotted, or Plain rotors to match your driving style.
Fits 300 and 300C models excluding SRT8. Requires 18" minimum wheel diameter. AWD models are excluded. Pair with the Baer 14" Pro+ Rear kit for a complete F&R upgrade.
Pros
- Lowest price point for a front big brake kit
- Fully assembled hubs — ready to bolt on
- Rotor options: slotted, drilled & slotted, or plain
- USA-made
Cons
- 14" rotor is smaller than 15" Extreme or Brembo options
- Excludes SRT8 and AWD
Baer 14" Pro+ Rear Big Brake Kit
The Baer 14" Pro+ Rear Big Brake Kit completes the front upgrade with matching rear stopping power. Same fully assembled, plug-and-play design as the front kit. Balances brake bias and reduces fade when paired with a front upgrade.
Fits 300 and 300C (excl. SRT). 18" minimum wheels. Excludes AWD models.
Pros
- Pairs with Baer 14" Pro+ Front for full F&R
- Fully assembled hubs
- USA-made
Cons
- Excludes SRT8 and AWD
Wilwood AERO4 Rear Big Brake Kit
Wilwood’s AERO4 Rear Big Brake Kit uses a 4-piston caliper design for improved rear braking and heat dissipation. Available in drilled or slotted rotors and black or red calipers. A strong value for 300 owners who want a rear upgrade without the Brembo price.
Fitment note: This kit is specifically for 05-10 Chrysler 300 with 2.7L or 3.5L V6 RWD. Excludes 5.7L Hemi and 6.1L SRT8. Pair with the Wilwood AERO6 Front for the same platform.
Pros
- 4-piston caliper for rear
- Drilled or slotted rotor options
- Black or red caliper options
Cons
- V6 RWD only — does not fit 5.7L or SRT8
Wilwood AERO6 Front Big Brake Kit
The Wilwood AERO6 Front Big Brake Kit delivers 6-piston front braking for the 2005-2010 Chrysler 300 at a price point between Baer and Brembo. Wilwood’s AERO calipers are designed for street and light track use with good heat dissipation and pedal feel.
Fits 300 and 300C RWD (excl. SRT8 and AWD). Available in drilled or slotted rotors and black or red calipers. A strong value for Hemi owners who want 6-piston stopping power without Brembo pricing.
Pros
- 6-piston caliper for front
- Best price-to-performance ratio
- Drilled or slotted, black or red
Cons
- Excludes SRT8 and AWD
Baer 15" Extreme Front Big Brake Kit
The Baer 15" Extreme Front Big Brake Kit steps up from the Pro+ with larger 15" rotors for more heat capacity and stopping power. Same fully assembled hub design as the Pro+ line. Ideal for 300C Hemi owners who want maximum braking without Brembo pricing.
Fits 300 and 300C (excl. SRT8). Requires 18" minimum wheels. Excludes AWD. Pair with the Baer 15" Extreme Rear for a complete F&R upgrade.
Pros
- 15" rotors for more heat capacity
- Fully assembled hubs
- USA-made
Cons
- Excludes SRT8 and AWD
Brembo GT 4-Piston Front Big Brake Kit
The Brembo GT 4-Piston Front Big Brake Kit is the most versatile option for the 2005-2010 Chrysler 300. Brembo’s GT Systems use monoblock aluminum calipers for rigidity and consistent braking. Available in Black, Silver, or Red with Drilled or T1 Slotted rotors.
Fits 300 and 300C (excl. AWD & SRT8). The SRT8 300C uses a different brake layout and requires the Brembo GT 8-Piston kit instead. This is the go-to choice for 5.7L Hemi 300C owners.
Pros
- Brembo racing heritage and reputation
- Monoblock caliper construction
- Color and rotor options
Cons
- Excludes SRT8 and AWD
Brembo Gran Turismo Drilled Front Big Brake Kit
The Brembo Gran Turismo Drilled Front Big Brake Kit is the original Brembo upgrade for the LX platform (2005-2008 Chrysler 300C, Challenger, Charger, Magnum). Drilled rotors for improved gas dispersion and pad bite. Racing-derived design with two-piece rotors and high-performance pads.
Fits 2005-2008 Chrysler 300C and platform siblings. Excludes AWD and SRT8. Currently on sale.
Pros
- Brembo Gran Turismo heritage
- Drilled rotors
- On sale
Cons
- 2005-2008 only (300C platform)
- Excludes SRT8 and AWD
Brembo GT 8-Piston Front Big Brake Kit
The Brembo GT 8-Piston Front Big Brake Kit is the only upgrade designed specifically for the 300C SRT8 (2006-2010). The 6.1L SRT8 uses a different brake layout than the 5.7L 300C, so non-SRT8 kits will not fit. This kit uses 380mm two-piece rotors and 8-piston calipers for maximum stopping power.
Fits 300C SRT8 only. Available in Black, Silver, or Red with Drilled or T1/T3 Slotted rotors.
Pros
- Only big brake kit for 300C SRT8
- 8-piston caliper, 380mm rotors
- Color and rotor options
Cons
- SRT8 only — does not fit 5.7L 300C
- Premium pricing
Fitment Reference
Which Kits Fit Your Vehicle?
| Vehicle / Trim | Baer 14" Pro+ | Wilwood AERO | Baer 15" Extreme | Brembo GT 4-Piston | Brembo Gran Turismo | Brembo GT 8-Piston |
|---|---|---|---|---|---|---|
| 300 2.7L / 3.5L V6 RWD | ✓ | ✓ | ✓ | ✓ | ✓ | ✗ |
| 300C 5.7L Hemi RWD | ✓ | ✓ | ✓ | ✓ | ✓ | ✗ |
| 300C SRT8 6.1L | ✗ | ✗ | ✗ | ✗ | ✗ | ✓ |
| 300 / 300C AWD | ✗ | ✗ | ✗ | ✗ | ✗ | ✗ |
✓ = Confirmed • ✗ = Excluded • — = Not tested
Common Questions
Frequently Asked Questions
Do I need new brake fluid when installing big brake kits?
Yes. Flush and replace brake fluid when installing big brake kits. Old fluid can contain moisture and reduce brake performance. Use fresh DOT 3 or DOT 4 fluid (or DOT 5.1 if specified for track use).
Will big brake kits fit my stock wheels?
Most big brake kits require 18" or 20" minimum wheel diameter. The 2005-2010 Chrysler 300 base models often came with 17" wheels. Check each kit’s spec before buying; many require 18" wheels.
What’s the difference between front-only and full (front + rear) kits?
Front-only upgrades deliver the biggest improvement since most braking force is on the front axle. Full kits (front + rear) improve brake balance and reduce fade under heavy use. For a 300C Hemi, a front-only upgrade is often sufficient; for track use, pair front and rear.
How do I bed in new brake pads?
Follow the manufacturer’s bedding procedure. Typically: 5–10 moderate stops from 60 mph to 30 mph, then cool down. Avoid coming to a complete stop during bedding. Repeat until pads are fully seated.
Will big brake kits void my factory warranty?
Modifying brakes may affect warranty coverage if a brake-related failure occurs. The Magnuson-Moss warranty act limits manufacturers from voiding unrelated warranties. Check with your dealer if concerned.
I have a 300C SRT8. Which kits fit?
The 300C SRT8 (2006-2010) uses a different brake layout than the 5.7L 300C. Only the Brembo GT 8-Piston Front kit is designed for SRT8. Baer, Wilwood, and Brembo GT 4-Piston kits exclude SRT8.
Ready to Upgrade Your Chrysler 300 Brakes?
Compare all kits above, pick the right fit for your trim, and order with confidence. Need help? Contact us.
