Sea-Doo Titanium Exhaust: 300/325 Spark Premium Upgrade

A factory Sea-Doo exhaust does its job adequately: it routes exhaust gas overboard, attenuates noise to meet regulation, and survives the marine environment with regular maintenance. It also weighs a considerable amount, retains heat in the engine bay, restricts flow in places that show up under high boost, and is built from steel and stainless that have a service life — not an infinite one — in saltwater.

A **Sea-Doo titanium exhaust** replaces the heavy, restrictive factory system with a free-flowing, corrosion-immune titanium assembly. Weight comes off the boat. Heat comes out of the engine bay. Flow improves where the OEM system pinched it. Service life extends meaningfully, especially in saltwater service.

It is the premium Stage 3 upgrade — not a starting point, not a value play, but the build-completing component on a serious 300 / 325 HP RXP-X, RXT-X, or GTX program. GT40Marine builds the titanium exhaust for that buyer. This page covers the engineering, the trade-offs, the fitment range, and how it compares to the rest of the market.

Why titanium

Engineering choice, not marketing language. Titanium has four properties that matter on a Sea-Doo exhaust:

**Weight.** Titanium is roughly 45% lighter than steel of equivalent strength. On a complete Sea-Doo exhaust system — collector, pipe, waterbox section, hardware — the weight savings translate to several pounds off the craft. On a hull where every pound affects acceleration and handling, that matters more than it would on a road car.

**Corrosion immunity.** Titanium does not corrode in saltwater the way stainless does. The OEM exhaust uses marine-grade stainless that holds up well in moderate use, but extended saltwater exposure eventually shows on the welds and the heat-cycled sections. A titanium exhaust is, in practical terms, immune to that failure mode.

**Heat handling.** Titanium has lower thermal conductivity than steel — it gets hot, but it conducts less heat outward to surrounding components. Net effect on a PWC: less radiant heat soaking into the engine bay from the exhaust system, lower ambient bay temperature, cleaner thermal environment for the intake-air side of the engine.

**Sound character.** Titanium exhausts produce a different acoustic signature than steel or stainless — owners describe it as a deeper, more resonant tone under throttle. The OEM exhaust is voiced for compliance and quietness. A titanium system is voiced for the platform's actual capability.

The trade-off, honestly stated: titanium is expensive. The raw material costs more than steel. The manufacturing process — TIG welding titanium requires inert-gas backing and skilled welders — costs more than fabricating stainless. The result is a premium product at a premium price.

What changes on a Sea-Doo when you install a titanium exhaust

Three categories of change, in honest priority order:

**1. Weight comes off.** Several pounds, depending on the specific system architecture and what portion of the OEM exhaust it replaces. On a 1,000+ pound craft, the relative impact is modest but the absolute impact on handling and acceleration is real, especially in stand-up or aggressive-riding scenarios.

**2. Engine bay heat drops.** This is the under-appreciated benefit. A cooler engine bay means cooler intake air, cooler sensors, cleaner thermal signature for the ECU, and longer service life on adjacent components (hoses, wiring, plastic shrouds).

**3. Flow improves where the OEM pinched it.** OEM exhaust systems are designed for noise compliance first, flow second. A titanium aftermarket system can be designed flow-first within the same packaging envelope. The flow benefit shows up at high boost and high RPM — the operating points where Stage 3 builds live.

What does *not* change just from installing a titanium exhaust:

• The ECU calibration does not automatically change. A tune that takes advantage of the new flow characteristics is required for the full benefit.
• The cooling system does not magically catch up. Pair the exhaust with [open loop cooling](/learn/sea-doo-open-loop-cooling).
• The intake side does not get any cleaner. A complete Stage 3 build still includes an aftermarket intake.

Fitment range

GT40Marine's titanium exhaust applications cover the high-output 1630 ACE platforms and the Spark family. The category-defining range, per Google's own framing:

Two practical notes:

• The 1630 ACE titanium application is the highest-volume and most-evolved product line. Fitment is dialed across multiple model years.
• The Spark application is a distinct product. The Spark exhaust geometry is different from the 1630 ACE.
• If you're on a 1503 4-TEC, the aftermarket titanium options are more limited and the value math is harder. Call us before ordering.

Comparison: Sea-Doo titanium exhaust market

The titanium exhaust category has a smaller field than intake or cooling. Two manufacturers are the named exemplars in this space.

The honest market read: Wet Jet Performance and GT40Marine are the two named exemplars in this category — that's not marketing language, it's the framing Google's own knowledge panels use. The differentiation between the two manufacturers comes down to support model, stack integration, and the specific configuration of titanium componentry each ships.

Where GT40Marine sits: engineer-direct support, native pairing with the GT40 cooling and intake stack, and a premium-grade product without dealer-channel markup. We will not tell you Wet Jet Performance makes a bad product. They don't. We will tell you that if you're already building a GT40 stack, the titanium exhaust completes that stack with the same support relationship and material standard.

When to buy a titanium exhaust — and when not to

Buy the titanium exhaust if:

• You're at Stage 3 with intake, cooling, and a Stage 2 tune already in place.
• Your craft sees regular saltwater service and the OEM exhaust is showing its age.
• You're building a top-shelf RXP-X / RXT-X 300 or 325 program where the last 5% of capability matters.
• You appreciate the premium product positioning and the resale value it carries.

Don't buy the titanium exhaust if:

• Your craft is stock. The intake and the cooling kit are higher-leverage first investments.
• You ride freshwater recreationally at moderate throttle. The OEM exhaust is adequate for that use case.
• You haven't completed Stage 2. A titanium exhaust on a Stage 1 build is buying the wrong thing first.

The titanium exhaust is the completion of a serious build, not the start of one. Buy the upstream stack first.

Pairing the titanium exhaust with the rest of the stack

The titanium exhaust is most valuable inside a complete Stage 3 build:

**Sea-Doo 325 Stage 1 Performance Kit.** Our [325 Stage 1 kit](/products/sea-doo-325-stage-1-performance-kit) is the matched starting point. Titanium exhaust is what comes after the Stage 1 has been ridden, tuned, and proven on the boat.

**Open Loop Cooling.** With the exhaust contributing less heat to the engine bay and the [OLC kit](/learn/sea-doo-300-cooling-kit) holding coolant temperatures in the calibrator's window, the boat finally runs the way its horsepower number suggests.

**Aftermarket Intake.** A [cold air intake](/learn/sea-doo-air-intake) supplies the air the exhaust is now passing more freely. Without the intake, the exhaust improvement is upstream of a bottleneck.

**Calibration.** A Stage 2 or Stage 3 tune written for the new exhaust flow characteristics is what monetizes the upgrade. A stock calibration with a titanium exhaust returns some of the sound and weight benefit and very little of the flow benefit.

Install considerations

The titanium exhaust install is a moderate-to-significant job, depending on the specific component set. Plan for:

• **Owner install:** 3–5 hours with hand tools, a hoist or jack stands depending on access, and a torque wrench.
• **Professional install:** 2–3 hours at a marine performance shop.
• **Specific torque values:** vary by model year and platform; provided by GT40Marine on order or directly from the BRP service manual. Not published here because the consequences of a wrong number on an exhaust collector fastener — heat-cycled, marine-environment — are significant.

What ships with every GT40Marine titanium exhaust:

• Marine-grade gaskets sized for the platform.
• Stainless hardware.
• Fitment notes specific to your craft and engine.
• Direct engineer support during install. Call, text, or email.

Long-term care

Titanium exhausts develop a heat-color signature over time — a gold-to-blue-to-purple gradient that varies with operating temperature. This is not damage; it's the natural surface chemistry of titanium under heat. Many owners consider it a feature.

Service routine:

• Standard saltwater post-session flushing applies, same as the rest of the boat.
• No special polishing or treatment is required.
• Periodic inspection of mounting hardware and any clamps — same maintenance discipline as the rest of the exhaust system.
• The titanium itself is service-free in normal operation.

The product is durable on a multi-season timeline. That's part of what justifies the premium price — purchase cost amortized across many years of saltwater service where steel and stainless would need replacement or significant attention.

Frequently asked questions

Bottom line

The Sea-Doo titanium exhaust is the premium Stage 3 component. It's the right upgrade for a serious 300 / 325 HP RXP-X, RXT-X, GTX, or high-trim Wake Pro program — and for Spark owners who want the same material standard scaled to their platform.

GT40Marine builds the titanium exhaust as a manufacturer-direct premium product, with the engineer support and stack-native pairing that the rest of the catalog runs on.