{"product_id":"v8-4-6l-mercury-200-300-fastboards-tune-2018-present","title":"V8 4.6L Mercury 200-300 Fastboards Tune (2018-present)","description":"\u003cp\u003e\u003cstrong\u003eFastboards Performance Tuning for Mercury V8 Outboards\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTampa Marine Tuning now offers Fastboards Marine Technologies performance software for 200-300hp Mercury V8 models, across FourStroke, Pro XS, and SeaPro. Depending on your engine, you're looking at an advertised gain of 50 to 140 horsepower, with real improvement in hole shot, top speed, and cruising efficiency.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Only Upgrade Available for Mercury\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNobody else makes a tune for these Mercury V8s. Fastboards is it. No competitors to shop, no other options to weigh.\u003c\/p\u003e\n\u003cp\u003eIt also comes in two distinct calibrations. Stage 1 and Stage 2 are separate flashes built for separate power levels, so you'll need to know which one you're after before you check out.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMore Power Needs Better Fuel\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe more power you unlock, the less margin you have for cutting corners. Stage 1 needs 91 octane minimum. Stage 2 needs 93. That's the requirement, not a recommendation.\u003c\/p\u003e\n\u003cp\u003eYou bought a Mercury because it's the fastest engine on the water. Tuning it for more power means the fuel side of the equation matters just as much as the tune itself. Run lower octane than what's specified and you're risking real engine damage.\u003c\/p\u003e\n\u003cp\u003ePremium fuel is part of the deal here. Budget for it the same way you'd budget for the tune.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePick Your Stage Before You Order\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStage 1 and Stage 2 aren't a toggle you flip later. Each one is a specific calibration flashed to your ECU at the time of purchase, matched to the fuel it's built for. If you order Stage 1 and decide down the road you want Stage 2, that means we're reflashing the ECU. Know what you're after, confirm your octane availability, and order the stage that matches your plan.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e200hp and 225hp Owners: One More Step\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTo hit full Stage 2 numbers, the 200 and 225 need the upgraded throttle body that's already stock on the 250 and 300. It's a real install, best left to an experienced marine mechanic. Call us and we'll walk you through it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e⚠️ Fuel Requirements\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eSTAGE 1: Minimum 91 (R+M\/2) \/ 95 RON octane.\u003cbr\u003eSTAGE 2: Minimum 93 (R+M\/2) \/ 98 RON octane.\u003cbr\u003e\u003cbr\u003e\u003cem\u003eRunning below these minimums will damage your engine. Stick to your service intervals.\u003c\/em\u003e\u003c\/p\u003e","brand":"Tampa Marine Tuning","offers":[{"title":"200 \/ Stage 1","offer_id":52270113423643,"sku":"V8MERC200ST1","price":2499.0,"currency_code":"USD","in_stock":true},{"title":"200 \/ Stage 2","offer_id":52742471319835,"sku":"V8MERC200ST2","price":2499.0,"currency_code":"USD","in_stock":true},{"title":"225 \/ Stage 1","offer_id":52270113456411,"sku":"V8MERC225ST1","price":2499.0,"currency_code":"USD","in_stock":true},{"title":"225 \/ Stage 2","offer_id":52742471352603,"sku":"V8MERC225ST2","price":2499.0,"currency_code":"USD","in_stock":true},{"title":"250 \/ Stage 1","offer_id":52270152843547,"sku":"V8MERC250ST1","price":2499.0,"currency_code":"USD","in_stock":true},{"title":"250 \/ Stage 2","offer_id":52742471385371,"sku":"V8MERC250ST2","price":2499.0,"currency_code":"USD","in_stock":true},{"title":"300 \/ Stage 1","offer_id":52813543801115,"sku":"V8MERC300ST1","price":2499.0,"currency_code":"USD","in_stock":true},{"title":"300 \/ Stage 2","offer_id":52813543833883,"sku":"V8MERC300ST2","price":2499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0804\/1994\/6779\/files\/v8_merc_200-300_v2_9155f984-85b6-446c-b45a-2a5e3ec00219.png?v=1780455420","url":"https:\/\/tampamarinetuning.com\/products\/v8-4-6l-mercury-200-300-fastboards-tune-2018-present","provider":"Tampa Marine Tuning","version":"1.0","type":"link"}