Spark Exhaust Moto GP Racing System Stainless Collector Yamaha R6 (2006-2026) GYA8824T

Four and a half kilos against 10.3 for the standard R6 exhaust, and the lightest of the three systems Spark builds for this motorcycle with a stainless collector. The short Moto GP case is why.

Key Features

• Racing full system for the Yamaha R6, 2006 to 2026.
• AISI 304 stainless collector with titanium Moto GP silencer.
• 4.5 kg against 10.3 kg for the standard system.
• The lightest of Spark's three stainless-collector R6 kits.
• Around a thousand euro below the full titanium STEP 3 kits.
• Racing part, not approved for road use.

Where the Weight Went

Almost six kilos leave the motorcycle, and on a 600 that is a large fraction of what can practically be removed without spending on suspension or wheels. The collector is steel here rather than titanium, and that is the compromise: Spark's titanium STEP 3 kits reach 3.4 to 4.2 kg, but they cost roughly a thousand euro more.

For a bike that sees track days rather than a championship, this is usually where the sensible line falls.

The Short Case

Moto GP is the stubby shape in Spark's catalogue — a short body with a wide round outlet, sitting close under the tail instead of reaching past it. On an R6, where the silencer hangs in plain view beside the seat unit, that is a visible decision and not only a weight one.

It is also why this kit comes in 800 grams under the Konix build at the same price: less case is less titanium.

Steel Where It Is Hidden

The collector spends its life under the fairing, out of sight and in the firing line for stones and kerb strikes. AISI 304 takes that better than thin-wall titanium does, and it can be straightened and re-welded when titanium would be scrap.

What you give up is the weight at the front of the system and the colour it develops. If neither matters, the steel collector is the more durable choice as well as the cheaper one.

Against the STEP 3 Kits

Spark's titanium range for the R6 runs on a numbered ladder — STEP 1, 2 and 3 — with CNC-machined connections from STEP 2 up. This system sits outside that ladder: it is the straightforward racing kit, without the machined joints and without a published noise figure.

If you need a documented decibel number for scrutineering, that lives with the STEP 3 kits, GYA8873T at 102 dB and GYA8877T at 106.

Installation

Full system: the standard collector comes off and Spark's replaces it from the head pipes back. This is the stainless-collector range, so the joints are fabricated rather than machined from solid — the CNC connections belong to Spark's STEP 2 and STEP 3 titanium kits for the same motorcycle.

Fitment & Compatibility

Yamaha R6, 2006 to 2026. Spark's other two kits at this level put a Konix case on the same collector (GYA8805T) or a 400 mm Force (GYA8853T). Above them sits the titanium STEP 3 range — GYA8873T, GYA8875T, GYA8877T — which adds machined joints and published noise figures.

Road Approval

None, and Spark says so on the article itself. Track use.

Specifications

• Part number: GYA8824T
• Type: Full system, racing
• Silencer: Moto GP, titanium
• Collector: AISI 304 stainless steel
• Weight: 4.5 kg (standard system 10.3 kg)
• Road approval: none, track use
• Fitment: Yamaha R6 (2006-2026)
• Manufacturer: Spark Exhaust Technology, Mantova, Italy