Sea-Doo category tour
Shop yourSea-Doo 325by category
A fast Sea-Doo path for the core categories: intake, exhaust, intercooler tubing, and catch can.
1-2
140+
Fitment
325
01 / Air in
Intake
Cold-air intake systems, filters, couplers, and airflow parts for Sea-Doo performance builds.
Start where airflow starts. Match the intake to your hull, year, and supporting parts before checkout.
Sea-Doo supercharged fitments vary by model year
Ships Worldwide
Same / next day
Find Your Ski
Pick your machine — see what fits
In-House Build
Designed & assembled by us
Since 2014
Selling marine performance parts on eBay
★Featured This Week—Stage 1 Performance KitFrom $585
See All Stages New stage kits
Pick the kit. We confirm the fit.
Stage kits bundle the parts customers usually piece together one at a time. Choose the build level, tell us the ride, and GT40 checks the setup before checkout.
01
Stage 1
Intake-first package with fitment reviewed before checkout.
02
Stage 2
Adds cooling and support parts for a more complete build.
03
Switch
Separate Switch 230 kits so boat buyers do not guess.
Most popular
Sea-Doo2024-2026
325 Stage 2
For 325 owners who want the cleanest full bolt-on path.
Stage 1 base
Cooling support
Exhaust path
View kit path
Most popular
Sea-Doo2016-2025
230/300 Stage 2
For 230/300 builds that need air, catch can, and BOV support together.
Cold-air intake
Catch can
BOV/tubing support
View kit path
Start here
Sea-Doo2024-2026
325 Stage 1
For a simple first-step 325 package before going deeper.
Intake path
BOV support
Intercooler tubing
View kit path
Most popular
Sea-Doo Switch2021-2025
Switch 230 Stage 2
For Switch 230 owners who want a platform-specific kit.
Stage 1 base
Cooling support
Fitment review
View kit path
Fitment checked
Year, model, and setup reviewed before you pay.
Kit-first buying
See the main kit path and optional upgrades in one place.
10 live kits
Sea-Doo and Switch stage kits are ready to shop.
Shop by Category
Sea-Doo Performance.
Built for RXP-X, RXT-X, GTR · Stage 1 ready.
08Categories
★ Sea-Doo Top Sellers
What riders are buying.
★ Verified Customers
Real builds. Real numbers.
4.9 average across 1,200+ verified reviews.
“GT40 turned my RXP-X into a different animal. Bolt-on. Plug-and-play. Real dyno numbers. Top-shelf.”
Marcus L.
2024 RXP-X 325 · Build #1240
“I run a shop in Tampa. We've fit a hundred GT40 kits and never had a single failure. Their support picks up the phone.”
Alex R., AR Marine
Authorized Dealer
“Stage 1 kit, intercooler — done in a day. Pulls hard at the top, idles like factory.”
Sarah K.
Switch 230 · 2023
WORLDWIDE
Shipped fast — same/next day
0
Building since
0PLATFORMS
GT40 5.8 · Volvo 5.0/5.8 · PCM · Indmar
FITMENT
Checked before checkout
Wholesale Program
Sell GT40 in your shop.
Dealer pricing on Sea-Doo bolt-ons, Stage kits, and the GT40 ECM line. Get fitment support and warranty cover for your customers.