Upower 4in to 7in Diesel Exhaust Tip 18in - Bolt On Mirror Polish

In this review the Upower 4in to 7in diesel exhaust tip is evaluated for drivers who want a quick visual and acoustic upgrade to a compatible 4in outside diameter tailpipe. The biggest reason to buy is straightforward: it provides a durable, mirror-polished rolled edge outlet and a bolt-on fit that requires no welding, delivering an improved look and a slightly deeper exhaust tone with minimal effort. Installation is simple with basic tools, and the stainless steel finish resists weathering for an affordable tailpipe refresh.

Key Features

• 4in inlet, 7in outlet: The stepped design provides a larger rolled-edge outlet that enhances appearance and directs exhaust flow outward.
• 18in overall length: The extended length gives a substantial visual presence and keeps the new tip clear of bodywork.
• Bolt on installation: No welding or drilling is required, so fitting the tip is fast and reversible with just a wrench.
• 70 degree single angle cut: The angled, rolled edge gives a finished, factory-style look that complements many truck designs.
• Mirror polished stainless steel: The high quality finish is long-lasting and resists rust and corrosion from sun and rain exposure.
• Universal compatibility: Designed to fit 4in outside diameter tailpipes, making it suitable for many diesel applications.

Who It's For

This exhaust tip is best for pickup and heavy-duty truck owners who already have a 4in outside diameter exhaust pipe and want a simple, cost-effective visual upgrade with a modest change in exhaust note. It suits DIY installers who prefer a bolt-on solution without welding or special fabrication.

It is not for owners whose exhaust pipe measures 4in inside diameter or for those seeking an engineered performance muffler or significant horsepower gains; in those cases a full exhaust system or professional custom work is more appropriate.

Pros & Cons

Pros

• Attractive mirror polish and rolled edge finish that improves the truck's rear-end appearance.
• Easy bolt-on fit that requires only a wrench and no drilling or welding.
• Solid stainless steel construction that stands up to weather and resists deformation.
• Noticeable improvement in exhaust tone for drivers who want a deeper growl without major modification.

Cons

• Bracket hardware has been reported to break by some users, so reinforcement or careful tightening may be needed.
• Universal fit only for 4in outside diameter pipes; it will not fit 4in inside diameter tailpipes.

Specifications

Inlet diameter	4 in (outside diameter required)
Outlet diameter	7 in
Overall length	18 in
Design	Bolt on - Rolled edge - 70 degree single angle cut
Material	Mirror polished stainless steel
Installation	No weld or drill, screw-on with wrench

Our Verdict

The Upower 4in to 7in diesel exhaust tip is a practical, value-focused upgrade for trucks with a 4in outside diameter tailpipe, offering a durable mirror finish and easy bolt-on installation. It improves appearance and adds a modest tone change without complicated work, making it a good buy for DIYers and cost-conscious owners who want a clean, finished tailpipe look.

Frequently Asked Questions

Will this fit my exhaust pipe?
The tip fits 4in outside diameter tailpipes only; it does not fit 4in inside diameter pipes.

Is welding required to install this tip?
No welding or drilling is needed; the tip fastens in place with the supplied screw hardware and a wrench.

How durable is the finish?
The mirror polished stainless steel finish is designed to resist rust and corrosion from sun and rain for long-lasting appearance.