Spark Exhaust Stainless Steel Tube Ø 60 × 1.0 mm 500 mm Universal G9004

Sixty millimetres is the number that appears more often than any other in Spark's catalogue — and this is the straight tube that matches it.

Key Features

• Straight exhaust tube, AISI 304 stainless steel.
• Ø 60 mm outside, 1.0 mm wall thickness.
• 500 mm long.
• Matches the inlet diameter of Spark's universal Force Evo, Konix Evo and Grid-O silencers.
• Spark part number G9004, made in Mantova, Italy.

The Silencer Inlet Size

Spark's universal Force Evo G00SI23T, the Konix Evo G00SI25T and the Grid-O G00SI26T all take a 60 mm inlet. So do the Megaphone universal cases, and so do a long list of Spark's stainless collectors on bike-specific systems.

If your project ends in a Spark universal silencer, this is the tube that feeds it. That single fact makes it the most useful diameter on the page for anyone building around Spark parts.

Matching a Silencer Inlet Exactly

A silencer specified at a 60 mm inlet expects a 60 mm tube to go into it, not over it. Check which way round the joint works before cutting: some cases take the pipe inside, others slide over it, and the difference decides whether you need this tube or the next size up.

Send us the silencer article number if you want that confirmed before ordering.

Bends Available

Spark offers 60 mm as a 30°, 45° and 90° bend. Between those three and this straight length, a complete run from collector to silencer can be built without a bender in the workshop.

Gas Speed at This Diameter

Sixty millimetres is generous. It suits a litre-class four, a big V-twin or anything with a pre-silencer box ahead of it. On a middleweight it will cost bottom-end response, and no amount of silencer choice recovers that.

Handling a Large Thin Tube

At 60 mm with a one millimetre wall the tube dents if it is dropped on a corner and ovalises if it is clamped hard. Support it along its length when cutting, and clamp on a vee block rather than in bare vice jaws.

Two Bends and a Silencer

Most Spark-based custom runs at this diameter come down to the same short parts list: a 90° bend off the collector, a straight section, a 45° into the silencer position, and a universal case at the end. Four articles, one afternoon of alignment, and no bender in the workshop.

Ordering

500 mm per article. Order the number of lengths the run needs.