SKU: 5408
Thermal R&D 5″ Dia x 8″ Long x 4″ Inlet Dual Wall Flat Cut Exhaust Tip – Polished
The Thermal R&D 5408 is a premium dual-wall flat cut exhaust tip designed for custom builds or upgrading existing aftermarket exhaust systems. Manufactured in the USA from high-grade T304 stainless steel with a mirror-polished finish, this tip features a bold 5″ diameter outlet, 4″ diameter inlet, and 8″ overall length for an aggressive, high-flow appearance. The dual-wall construction provides superior durability, heat resistance, and a clean look without discoloration from exhaust soot. Perfect for Ford, Dodge, Chevy, or universal applications needing a larger, premium tip upgrade. Backed by Thermal R&D’s Lifetime Manufacturing Warranty for lifelong integrity and shine. Easy clamp-on or weld-on installation makes it an ideal finishing touch for performance exhausts.
Key Features & Benefits
- High-Grade T304 Stainless Steel Corrosion-resistant with mirror-polished finish for premium shine
- Dual-Wall Flat Cut Design Durable, heat-resistant, and prevents soot buildup on visible surfaces
- 5″ Outlet / 4″ Inlet / 8″ Length Bold, aggressive sizing for standout rear stance and balanced proportions
- Lifetime Manufacturing Warranty Confidence in long-term durability and quality
- USA-Made by Thermal R&D Precision formed and welded in-house for impeccable fit and finish
| Specification | Detail |
|---|---|
| Part Number | 5408 |
| Brand | Thermal R&D |
| Application | Custom / aftermarket exhaust systems (4″ inlet compatible) |
| Material | T304 Stainless Steel (polished) |
| Included | Single dual-wall flat cut exhaust tip |
| Installation | Clamp-on or weld-on to 4″ exhaust outlet |
| Warranty | Lifetime Manufacturing Warranty |
Whats Included
- One polished T304 stainless steel dual-wall exhaust tip 5″ dia outlet, 4″ inlet, 8″ long
Product Notes
- Dual-wall design protects outer surface from heat and discoloration for lasting polish
- Perfect upgrade for Thermal R&D catback systems or any custom exhaust with 4″ outlet
- Flat cut provides a clean, modern look without angled protrusion
- USA-made with in-house forming and welding for superior quality and fit
- Lifetime warranty covers manufacturing defects and material integrity
Installation Notes
- Estimated time: 10-30 minutes
- Loosen or remove existing tip/clamp
- Slide new 5408 tip over 4″ outlet pipe and secure with clamp (or weld for permanent install)
- Check alignment and tighten securely
- Professional welding recommended if permanent installation is desired
This Part Fits
| Year Range | Make | Model | Engine | Notes |
|---|---|---|---|---|
| Universal | Universal | Universal | Universal | 4″ inlet fits most aftermarket exhaust outlets; ideal for Thermal R&D systems or custom builds – measure outlet diameter for compatibility |
Why Choose Thermal R&D 5408 Exhaust Tip?
- Premium T304 polished stainless with dual-wall protection for lasting shine and durability
- Bold 5″ flat cut design adds modern, head-turning style to any exhaust
- Lifetime warranty ensures quality and peace of mind for custom or upgraded setups
- Thermal R&D USA-made performance brand trusted for exhaust finishes and fitment
Frequently Asked Questions
- Q: Will this fit my Thermal R&D catback system?
A: Yes, 4″ inlet designed for larger Thermal R&D or aftermarket exhaust outlets; confirm your system has 4″ tip section. - Q: Is this tip single or a set?
A: Sold individually, purchase quantity needed for single or dual-exit systems. - Q: Does it require welding?
A: No, clamp-on capable, weld for permanent install if preferred.
Shipping and Handling
- Method: UPS / FedEx Ground
- Availability: In stock – ships same or next business day
- Packaging: Secure protective packaging
- Weight: Approx. 3-5 lbs (single tip)
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