Wilwood Front FNSL6R Brake Upgrade for 2004–2006 Pontiac GTO, Red - GT Slotted Rotors, 14.00-inch Diameter

GT slotted Spec-37 rotors and red FNSL6R calipers form this GTO front brake system. The package retains the original hubs and includes flexlines, so installation focuses on bracket alignment, wheel clearance and the specified hydraulic routing. Wilwood Engineering designs and manufactures disc brake systems and components, including calipers, brake rotors, master cylinders, valves, fittings and brake lines. Bill Wood founded the company in 1977; its Camarillo, California operation serves motorsport, street-performance and specialized applications. Every component must suit the complete brake system in which it operates.

Technical Details

Rotors and mounting dimensions

• Rotors: 14.00 in; 355.6 mm diameter x 1.25 in; 31.75 mm thick; vented Spec-37 Iron
• Friction faces: GT Slotted
• Rotor finish: Black Electro Coat
• Internal vanes: 72 curved
• Hats: aluminum; Black E-Coat; 1.000-inch hat offset
• Rotor/hat wheel-stud clearance patterns: 5 x 4.72 in; 5 x 119.89 mm
• Hat wheel-stud clearance holes: 0.500 in, corresponding to the listed hat patterns

Kit contents and separate parts

• Manufacturer part number: 140-9296-R
• Supply: one kit with brake components for both sides of the front axle
• Mounting hardware: included
• Hubs: not included
• Spindles, master cylinder and brake booster: not included
• Hydraulic hoses: included; 220-14177 hose-and-fitting kit
• Included hydraulic hose kit: 220-14177, with the fittings specified in DS-537.

Calipers and friction components

• Calipers: Forged Narrow Superlite 6R; 6 pistons per caliper
• Caliper finish: Red Powder Coat
• Body construction: Forged aluminum
• Piston material: stainless
• Caliper mounting: radial
• Hydraulic inlet: 1/8-27 NPT
• Included pad compound: BP-10
• Listed piston bore sizes: 1.62 / 1.12 / 1.12 in

Fitment & Compatibility

For the 2004–2006 Pontiac GTO applications shown in the table below, using the original front spindles and hubs. The aluminum hats carry a 1.000-inch offset and clearance for the factory five-lug pattern. DS-537 requires minor hard-line repositioning to align the new fittings. This kit includes the 220-14177 hose package; it should not be ordered as though flexlines were absent. Verify the wheel-clearance drawing and evaluate front-to-rear balance after installation. Nominal minimum wheel diameter: 18 in; 457.2 mm. Compare the actual wheel barrel and spokes with the linked clearance drawing; diameter alone does not establish fit.

Installation documents

• Installation instructions

WARNING: This product can expose you to chemicals including Arsenic, Cadmium, Chromium (Hexavalent compounds), Lead, Nickel, Cobalt and Antimony Trioxide which are known to the State of California to cause cancer or other reproductive harm. For more information go to www.p65warnings.ca.gov.

With over 20 years of brake-system and restoration experience, PMB Performance can help you review the application, wheel clearance and remaining parts for the installation.

Vehicle Applications

Application Notes

1. 14" Rotor
2. Line kit included (manufacturer): 220-14177 (20.00 in)
3. Front line-kit reference: 220-14177