3.5 Inch Stainless Turnout Dump for Routing Exhaust Away From Chassis in Tight Builds
The 9105 is a 3.5 inch short turnout exhaust dump measuring 6 inches in total length, constructed from T304 stainless steel for performance exhaust applications where the exhaust needs to exit away from the chassis, frame, or body in a controlled direction. Short turnouts and dump exits are a standard tool in the performance fabricator’s toolkit, used at the termination point of an exhaust system where a traditional muffler exit is impractical, as well as for drag racing bypass configurations, open header setups, and race car exhaust routing where ground clearance and tire clearance dictate the exhaust exit angle.
At 3.5 inches, the 9105 is sized for larger displacement V8 applications and builds using wider primary exhaust tubing. The 6 inch length keeps the turnout compact while providing enough tube to allow for proper positioning and clearance from adjacent chassis components. T304 stainless steel holds up to the high temperatures of an uninsulated exhaust dump exit, and the material welds cleanly to matching stainless exhaust tubing. Whether you are building a race car exhaust system, fabricating a functional test pipe, or simply routing a 3.5 inch exhaust exit in a challenging location, this turnout is the correct Kooks component for the job.
Key Features
- 3.5 inch inlet diameter for use in 3.5 inch exhaust systems
- 6 inch total length for compact exhaust exit routing
- Turnout shape directs exhaust flow away from chassis, frame, and body
- T304 stainless steel construction for high temperature durability
- Weld on installation for a clean, secure connection
- Suitable for race car builds, drag cars, and performance street fabrication
What’s Included
- 1 x this turnout 3.5 inch T304 stainless steel short turnout exhaust dump, 6 inch length
Specifications
| Specification | Detail |
|---|---|
| Part Number (MPN) | 9105 |
| UPC | Contact us for UPC |
| Inlet Diameter | 3.5 inch |
| Total Length | 6 inch |
| Shape | Short Turnout / Dump |
| Material | T304 Stainless Steel |
| Installation Type | Weld On |
| Fitment | Universal |
Frequently Asked Questions
What is an exhaust turnout or dump?
An exhaust turnout, sometimes called a dump, is a short section of exhaust tubing that terminates with the pipe angled downward or outward, directing the exhaust gases away from the vehicle body and chassis rather than straight back. They are commonly used in racing, open header builds, and situations where a full exhaust system terminating at the rear is not practical or required.
What pipe size does this turnout connect to?
This turnout has a 3.5 inch inlet that weld connects to 3.5 inch exhaust tubing.
How long is this turnout?
This turnout is 6 inches in total length, making it a short, compact turnout for tight routing situations.
How is this turnout installed?
This turnout is welded onto the end of the exhaust pipe at the desired exit location. The inlet end is welded to the terminating exhaust tube, and the turnout shape directs the exit angle away from the chassis.
Can I use this turnout on a street car?
This turnout can be used on a street driven performance vehicle as an exhaust exit where routing to the rear of the car is not feasible. Be aware that open exhaust dumps without a muffler may not comply with local noise ordinances.
What material is this turnout?
T304 stainless steel, providing excellent heat resistance and corrosion resistance for a component that is exposed to full exhaust temperature at an open exit point.
Is this turnout sold as a single piece?
Yes. For a dual exhaust or dual dump configuration, two this turnout units would be required.
Can this turnout be used with a race car cage or chassis?
Yes. The short, directed turnout design is commonly used in race car applications where exhaust exit placement must clear tube chassis components, floor pans, and safety equipment.
What is the difference between this turnout and the 9103?
This turnout is 3.5 inches in diameter while the 9103 is 3 inches in diameter. Both are 6 inch short turnout dumps in T304 stainless. Select based on the pipe diameter of your exhaust system.
Does the turnout angle affect exhaust flow?
A turned exhaust exit creates a modest backpressure increase compared to a straight exit due to the change in flow direction. For most performance applications, this effect is minimal and does not measurably reduce power output.
Installation Instructions
- Determine the exhaust exit location and confirm this turnout turnout angle will direct exhaust gases clear of the chassis, body panels, and tires.
- Cut the 3.5 inch exhaust tubing to the desired termination point.
- Fit this turnout inlet end onto the exhaust tube end and confirm the exit angle and direction.
- Tack weld to hold the position and recheck clearances with the vehicle at ride height.
- Complete a full circumference weld at the inlet connection using T304 compatible filler.
- Inspect the weld and allow to cool before the first engine start.
- Verify exhaust gases are directed clear of all vehicle surfaces during initial operation.
Prop 65 Warning
WARNING: This product can expose you to chemicals including Chromium and Nickel, which are known to the State of California to cause cancer, birth defects or reproductive harm. For more information go to www.P65Warnings.ca.gov.
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