Bestseller
At Diamond Star Motorsports, we live and breathe the thrill of the Mitsubishi Eclipse. Since our founding, we've dedicated ourselves to being the premier supplier of high-performance parts, OEM replacements, and custom upgrades for all Eclipse models.
Nestled in the heart of automotive passion, our Florida headquarters serves a global community of DSM enthusiasts, track warriors, and daily drivers who demand nothing less than perfection.
What sets us apart?
We're not just a parts supplier; we're guardians of the Eclipse legacy. The Mitsubishi Eclipse, born from the groundbreaking Diamond-Star Motors partnership between Mitsubishi and Chrysler in 1989, redefined sport compact performance.
We source, test, and deliver components that honor that heritage while pushing modern boundaries. Whether you're restoring your DSM legend or turbocharging your daily, our curated inventory ensures your Eclipse roars back to life.
Our Roots: From DSM Enthusiasts to Industry Leaders
Diamond Star Motorsports started in a modest garage in Florida, where founder Anthony "Turblo" tinkered with his battered 1995 Eclipse GSX. Frustrated by scarce parts for the 4G63 engine and unreliable suppliers, Anthony sourced his first shipment of turbo kits from Japan. Word spread fast among local car meets, and by 2025, we expanded into a full e-commerce powerhouse at Diamondstarmotorsports.com.
Today, with over 18 years in the game, we've grown into the go-to Eclipse parts supplier. Our team of certified mechanics, engineers, and DSM veterans—many with racing pedigrees from SCCA and Import Drag Racing Association events—personally vets every product.
We've supplied parts for over 50,000 builds worldwide, from street sleepers to 10-second drag monsters. Our commitment? Unwavering quality, lightning-fast shipping, and prices that beat the competition without cutting corners.
Unmatched Inventory: Everything Your Eclipse Needs
Browse Diamondstarmotorsports.com, and you'll find the most comprehensive Eclipse parts catalog online. We stock:
OEM and Reproduction Essentials: Faithful replacements for brakes, suspension bushings, timing belts, and body panels. Revive your Eclipse with period-correct accuracy.
Performance Upgrades: 4G63 rebuild kits, Evo-spec intercoolers, billet crankshafts, and 272 cams for that sought-after DSM powerband. Pair them with our Precision turbochargers for spool like never before.
Turbo and Fuel Systems: From Holset HX35 hybrids to massive GT42R ball-bearing units, plus Walbro 255 pumps and Aeromotive regulators to feed your boost-hungry mill.
Chassis and Drivetrain: ACT clutches, Quaife LSDs, and custom driveshafts engineered for AWD grip. Don't forget our KMD subframe collars to eliminate those dreaded 1G/2G flex issues.
Electronics and Tuning: ECU reflashes, wideband O2 kits, and plug-and-play MegaSquirt systems for standalone control. Our plug-n-play harnesses make DSM swaps a breeze.
We prioritize hard-to-find gems like 6-bolt 4G63 blocks, FWD-to-AWD conversions, and even rare color-matched interior trim. No backorders here—95% of orders ship same-day from our climate-controlled warehouse.
Expertise That Powers Your Build
Our edge comes from deep DSM knowledge. We've dissected hundreds of Eclipses, from bone-stock talons to 1,000whp monsters. Need advice on porting your 1G head for 400hp? Our tech articles and build guides cover it. Unsure about 2G NT vs. T upgrades? Our forum and live chat connect you to experts who've done it.
We partner with top brands to provide you with exclusive deals. Sustainability matters too—we recycle cores and offer remanufactured options to keep classics on the road without waste.
Global Reach, Local Passion
From Orlando to backroads worldwide, we ship to 50+ countries with duties calculated upfront. Our 30-day hassle-free returns and lifetime tech support build trust.
We've powered wins at events sponsoring builds that shatter records. One customer, Alex from Florida, turned his '97 GSX into a 9-second beast with our full Stage 3 kit: "Diamond Star didn't just sell parts—they built my dream."
Why Choose Diamond Star Motorsports?
In a sea of generic auto sites, we stand out:
Premier Selection: 10,000+ SKUs, all Eclipse-focused—no diluted catalogs.
Rigorous Quality Control: Every part inspected; 2-year warranties standard.
Competitive Edge: Up to 30% below MSRP, with bundle discounts for full builds.
Community First: Free webinars, dyno days, and a Discord for Eclipse owners.
Innovation Driven: Custom CNC-machined brackets and 3D-printed prototypes for modern fixes.
We're more than suppliers; we're your pit crew. As the Eclipse nears 35 years, we ensure its spirit endures—faster, fiercer, forever.
Join the Diamond Star family. Build boldly. Race proudly.
Ready to elevate your Eclipse?