The facts.
| Part number | G9014 |
|---|---|
| Type | Bent pipe |
| Material | AISI 304 stainless steel |
| Dimensions | Ø 76 × 1.5 mm, 500 mm long |
| Fitment | Universal |
| Road approval | None — track use only |
| Origin | Made in Italy |
| Manufacturer | Spark Exhaust Technology, Mantova |
| Manufacturer description | Tube l.500mm - d.76 x 1,5mm |
DescriptionThe whole story▼
Seventy-six millimetres with a millimetre and a half of wall. The largest tube Spark stocks, and the heaviest — this is body material, not pipework.
Key Features
- Straight exhaust tube, AISI 304 stainless steel.
- Ø 76 mm outside, 1.5 mm wall thickness.
- 500 mm long.
- The largest diameter and the thickest wall in Spark's tube range.
- Spark part number G9014, made in Mantova, Italy.
Three Inches
Seventy-six millimetres is three inches, which is why the size exists at all: a great deal of exhaust hardware, particularly anything with an American origin, is built to imperial dimensions. If a project has to meet a three-inch component, this is the tube that does it.
Wall Thickness at the Top of the Range
One and a half millimetres, back to the figure used on the twenty-eight at the other end. The reasons are opposite: the small tube needs it for stiffness, this one needs it to stop a large panel drumming and to survive being formed into a closed body.
Silencer and Box Bodies
At this diameter a 500 mm length becomes a silencer case, an expansion chamber or the outer shell of a pre-silencer box. Packed with sound-absorbing material around a perforated core, it is the volume that does the quietening in a custom system.
What it is not is a gas path. Nothing on a motorcycle needs seventy-six millimetres of open bore.
Cutting Thicker Stainless
A 1.5 mm wall at this diameter is a long cut and it will work-harden if the blade rubs rather than cuts. Use a sharp abrasive wheel, keep the feed steady, and let the material cool between passes — a blued, hardened cut edge is difficult to file and worse to weld.
Bends
Available from Spark at 30°, 45° and 90°. At 76 mm a factory mandrel bend is the only realistic route — and the price gap between a bend and a straight length is smaller than the cost of ruining two.
End Caps
Closing a seventy-six millimetre body needs a cap at each end, and the cap is the part that decides whether the finished silencer looks made or improvised. A spun stainless cap, a laser-cut disc dished in a press, or a machined ring are the three routes — in that order of appearance and in reverse order of cost.
Ordering
500 mm per article.
FitmentWhich bikes this fits▼
Universal product — Please check whether it fits your bike.
Questions, one topic at a time.
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Measure your head circumference about one centimetre above your eyebrows and compare it with the size chart on this page. Between sizes? Choose the smaller one — the padding beds in with use.
Yes — it’s tested and approved to the current ECE 22.06 standard and road-legal across the EU.
Most of our touring and sport helmets are Pinlock-ready and many include the insert. Check the ‘What’s in the box’ section on this page for this model.
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Take out the washable lining and hand-wash it in lukewarm water. Clean the shell and visor with a soft cloth and water only — never solvents.
Our team will personally help you choose the right gear or part — around 24h for a reply.