OEM Second Cat Mount Bolt Renault Clio 4 RS

Why Replace the Second Catalytic Converter Mounting Bolt on Your Clio 4 RS?

The exhaust system of a performance hatchback like the Renault Clio 4 RS endures intense thermal cycles, severe vibrations, and constant exposure to road salt and weather conditions. Positioned at the second catalytic converter, the bolt securing the unit to the rubber insulator mount (silent block) provides flexible yet firm support under the chassis.

What You Risk by Using Worn or Improper Exhaust Fasteners

Neglecting rusted exhaust hardware or using non-standard replacement bolts exposes your vehicle to frustrating and costly issues:

• Underbody Rattles and Metallic Knocking: Excessive play at the rubber hanger allows the exhaust line to strike the chassis or heat shields, destroying cabin comfort.
• Cracked Catalytic Converter Brackets: Without firm, proper support, mechanical strain transfers directly onto the welds of the secondary cat, leading to expensive exhaust leaks.
• Accelerated Rubber Hanger Deterioration: A seized or damaged bolt thread tears into the rubber mount, leading to premature sagging and failure.
• Seized Threads During Maintenance: Reusing heavily oxidized bolts increases the risk of snapping the fastener inside the receiver thread during future exhaust upgrades or repairs.

The Reliability of Genuine Renault Sport Hardware

To ensure long-term reliability for your exhaust system, using genuine factory fasteners is critical. This genuine Renault mounting bolt features anti-corrosion surface treatment designed specifically to withstand the extreme temperatures generated by Renault Sport exhaust lines.

Vehicle Compatibility

This exhaust mount bolt is a direct factory fit for:

• Renault Clio 4 RS 1.6 Turbo EDC (200 hp)
• Renault Clio 4 RS Trophy 1.6 Turbo EDC (220 hp)
• Models fitted with Sport Chassis or Cup Chassis

Frequently Asked Questions (FAQ) – Technical Answers

How do I know if my exhaust mounting bolt needs replacing?

If you inspect the undercarriage and notice severe oxidation on the bolt head, damaged threads from previous disassembly, or abnormal looseness around the secondary catalytic converter mount, a replacement is necessary.

Should copper grease be applied during installation?

To prevent thermal seizing and make future servicing easier, applying a small amount of high-temperature copper grease to the threads prior to assembly is highly recommended.

Can I install this myself or book an appointment at Optimiz Access?

The job requires standard hand tools and safe underbody access. If you prefer professional installation, the Optimiz Access team handles fitting and exhaust servicing at our specialized workshop facility.

Optimiz Access Expertise & Service

Specialists in customization and servicing for sports and premium vehicles since 2010, Optimiz Access provides motoring enthusiasts with trusted factory components. We process and package every order carefully to ensure fast delivery options worldwide.

Our workshop in Northern France (near Cambrai, Valenciennes, Arras, Douai, Lille, Seclin, and Saint-Quentin) welcomes your sports car for part installation and routine maintenance.

Note: Find exhaust rubber hangers, complementary hardware, and performance exhaust systems in the dedicated section at the bottom of this page.