---
product_id: 69090770
title: "316L Stainless Steel Marine Through Hull 4\" Inch Exhaust TipsF"
brand: "sinister products llc"
price: "$582"
currency: NZD
in_stock: true
reviews_count: 8
category: "Sinister Products Llc"
url: https://www.desertcart.nz/products/69090770-316l-stainless-steel-marine-through-hull-4-inch-exhaust-tipsf
store_origin: NZ
region: New Zealand
---

# 316L marine-grade steel 8K mirror polished finish .080" CNC cut flange 316L Stainless Steel Marine Through Hull 4" Inch Exhaust TipsF

**Brand:** sinister products llc
**Price:** $582
**Availability:** ✅ In Stock

## Summary

> ⚓ Elevate your boat’s exhaust game with marine-grade shine and performance!

## Quick Answers

- **What is this?** 316L Stainless Steel Marine Through Hull 4" Inch Exhaust TipsF by sinister products llc
- **How much does it cost?** $582 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/69090770-316l-stainless-steel-marine-through-hull-4-inch-exhaust-tipsf)

## Best For

- sinister products llc enthusiasts

## Why This Product

- Trusted sinister products llc brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Engineered Fit:** CNC-cut .080" thick flange with chamfered holes guarantees a clean, professional bolt-on installation every time.
- • **Show-Stopping Mirror Polish:** 8K mirror finish delivers a sleek, high-end look that elevates your boat’s aesthetic and signals premium quality.
- • **Unmatched Marine Durability:** 316L stainless steel resists corrosion in harsh saltwater environments, ensuring longevity and reliability.
- • **Maximized Exhaust Performance:** Unbaffled design optimizes exhaust flow for enhanced engine efficiency and power output.
- • **Built to Withstand the Elements:** Fully welded flange back prevents water intrusion, outperforming typical spot-welded competitors.

## Overview

These Sinister Products LLC 4" marine exhaust tips are crafted from premium 316L stainless steel with an 8K mirror polish, designed specifically for saltwater durability. Featuring a heavy-duty .060" tube and an extra thick .080" CNC-cut flange with fully welded backs, they ensure a corrosion-resistant, water-tight, and visually stunning upgrade. Their unbaffled design maximizes exhaust flow, making them a top-tier choice for boat owners seeking both performance and style at a competitive price.

## Description

Brand new pair of Sinister Products LLC 4 Inch Straight Exhaust Tips. 10 Inches overall, approximately 5 inches in, and 5 inches out the transom of the boat when installed. Tips are completely unbaffled for maximum performance. These exhaust tips are made entirely fom the highest quality 316L 8k Mirror Polished Stainless Steel, unlike alot of our competitors that use a cheaper 304 grade that isn't designed to fully withstand marine conditions. 316L grade stainless steel is the most desired alloy in the marine industry today. It possesses the longest finish and corrosion resistance for it's environment. All tips are constructed from heavy duty .060 thickness 316L Stainless Steel tube, and an extra thick .080 CNC cut flange. These tips are fully welded on the back of the flange to prevent water intrusion, instead of the typical spot welding seen by competitors. All transom mount holes are chamfered to allow for a much cleaner install. These are extremely high quality exhaust tips, with an incredible finish for less than half the cost of other name brands.

Review: Amazing quality - What did you guys use for water shutters?
Review: That was awesome - I work the way supposed to thank you very much

## Features

- 316L Mirror Polished Stainless Steel

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0785FQ2Z6 |
| Best Sellers Rank | #320,451 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #326 in Boat Plumbing Fittings |
| Brand | Sinister Products LLC |
| Brand Name | Sinister Products LLC |
| Compatible with Vehicle Type | Boat |
| Customer Reviews | 4.9 out of 5 stars 41 Reviews |
| Finish Type | Polished |
| Installation Type | Bolt-On |
| Item Dimensions L x W | 10"L x 5"W |
| Manufacturer | Sinister Products LLC |
| Manufacturer Part Number | 1928 |
| Material | Stainless Steel |
| Material Type | Stainless Steel |
| Product Dimensions | 10"L x 5"W |
| Unit Count | 1.00 Count |
| Vehicle Service Type | Boat |

## Product Details

- **Brand:** Sinister Products LLC
- **Material:** Stainless Steel
- **Vehicle Service Type:** Boat
- **Installation Type:** Bolt-On
- **Finish Type:** Polished

## Images

![316L Stainless Steel Marine Through Hull 4" Inch Exhaust TipsF - Image 1](https://m.media-amazon.com/images/I/81CabdeJf7L.jpg)
![316L Stainless Steel Marine Through Hull 4" Inch Exhaust TipsF - Image 2](https://m.media-amazon.com/images/I/81JHI8fbJuL.jpg)

## Questions & Answers

**Q: Is the front and back both 4” ?**
A: Yes, it is 4” on both sides

**Q: are 5" thru hull available**
A: We do not offer 5-inch at this time.

**Q: Can you run these the way they are, or do you have to put flappers on them?**
A: We put flappers on ours because they are below the waterline.

**Q: Are you selling 2 pieces or one?**
A: These are sold in pairs. 2 tips per purchase.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Amazing quality
*by Z***L on August 31, 2024*

What did you guys use for water shutters?

### ⭐⭐⭐⭐⭐ That was awesome
*by A***R on December 7, 2025*

I work the way supposed to thank you very much

### ⭐⭐⭐⭐⭐ Great Quality!!
*by A***R on February 13, 2024*

item received very quickly and well packaged. Excellent Quality. Exactly as described and what I needed! Thank you Sinister Products.

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.nz/products/69090770-316l-stainless-steel-marine-through-hull-4-inch-exhaust-tipsf](https://www.desertcart.nz/products/69090770-316l-stainless-steel-marine-through-hull-4-inch-exhaust-tipsf)

---

*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-12*