Do the GiroDisc Front Rotors for Evo X work with the factory calipers?

Yes. GiroDisc lists the GiroDisc Front Rotors for Evo X as a direct replacement for the factory disc, with no modifications needed. They bolt straight onto the car and work with the original front calipers, keeping the factory brake bias and ABS efficiency.

Why choose two-piece rotors over a big brake kit on an Evo X?

A rotor upgrade keeps the calipers and brake balance Mitsubishi designed, so the ABS continues to work as calibrated. GiroDisc says the lighter two-piece rotor also cuts rotational and unsprung weight, which helps acceleration and suspension response on road and track.

How is the Evo X front ring cooled?

Curved vanes inside the ring act as a centrifugal pump, drawing air in at the hub and driving it out through the disc. The slotted face keeps the friction surface clean and prevents a film of water forming when the road or the track is wet.

What material is the Evo X front hat made from?

The hat is machined from strictly US-sourced 6061-T6 aircraft-specification aluminum. It carries the iron ring through ten cadmium-plated alloy steel drive pins, made by GiroDisc in the USA, with class 12.9 cap screws and hardened washers securing them to the hat.

Is a bed-in procedure recommended for the new Evo X rotors?

Yes. GiroDisc recommends bedding in new discs before hard use. Build temperature gradually with a series of moderate stops, let the brakes cool completely, and only then push the Evo hard on a track day or a fast stretch of road.

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Description

GiroDisc Front Rotors for Evo X Mitsubishi Lancer Evolution

GiroDisc’s Front Rotors for Evo X Mitsubishi Lancer Evolution owners replace the factory front discs with two-piece floating assemblies that bolt on with no modifications. The factory calipers carry over, so the Evo keeps its original brake bias and ABS efficiency while losing rotating and unsprung mass at the front. GiroDisc floats its own cast iron ring, poured in the USA and machined in-house, on a strictly US-sourced 6061-T6 aluminum hat through 10 cadmium-plated drive pins. It suits the Evo X driver who wants sharper front-end response on track without the cost and complexity of a big brake kit.

Bolt-On and Go

The swap mirrors a standard rotor change: the factory disc comes off, the GiroDisc assembly bolts to the hub, and the original caliper goes back on with no spacers or machining. Each rotor is handed and labeled for its side. The cap screws on the drive pins can look loose by design and are never tightened beyond 60 in-lb, or 7 Nm, which preserves the float.

Features

Direct bolt-on replacement for the Evo X front disc
Keeps the factory calipers, brake bias and ABS efficiency
10 high-strength alloy steel drive pins, cadmium plated
Strictly US-sourced 6061-T6 aircraft-specification aluminum hat
Curved vanes that pump air from hub to rim
Anti-noise spring washers that stop cold rattle

What’s Included

Front rotor assemblies (L/R)

Applications

Mitsubishi Lancer Evolution X: 2.0L turbocharged I4

Notes

The GiroDisc Front Rotors for Evo X install with no modifications and use the factory calipers
Worn rings are renewed with the GiroDisc 350x32mm front replacement rings, which bolt to these hats
The matching GiroDisc Evo X rear rotors complete the set
Stock photography may not depict the actual product

Frequently Asked Questions

Do the GiroDisc Front Rotors for Evo X work with the factory calipers? Yes. GiroDisc lists the GiroDisc Front Rotors for Evo X as a direct replacement for the factory disc, with no modifications needed. They bolt straight onto the car and work with the original front calipers, keeping the factory brake bias and ABS efficiency.
Why choose two-piece rotors over a big brake kit on an Evo X? A rotor upgrade keeps the calipers and brake balance Mitsubishi designed, so the ABS continues to work as calibrated. GiroDisc says the lighter two-piece rotor also cuts rotational and unsprung weight, which helps acceleration and suspension response on road and track.
How is the Evo X front ring cooled? Curved vanes inside the ring act as a centrifugal pump, drawing air in at the hub and driving it out through the disc. The slotted face keeps the friction surface clean and prevents a film of water forming when the road or the track is wet.
What material is the Evo X front hat made from? The hat is machined from strictly US-sourced 6061-T6 aircraft-specification aluminum. It carries the iron ring through ten cadmium-plated alloy steel drive pins, made by GiroDisc in the USA, with class 12.9 cap screws and hardened washers securing them to the hat.
Is a bed-in procedure recommended for the new Evo X rotors? Yes. GiroDisc recommends bedding in new discs before hard use. Build temperature gradually with a series of moderate stops, let the brakes cool completely, and only then push the Evo hard on a track day or a fast stretch of road.

About GiroDisc

GiroDisc designs, manufactures, and sells 2-piece, fully floating brake rotors for a wide range of performance vehicles. Every major component, including the hats, rotor rings, and drive pins, is manufactured in-house at their facility in Bellingham, Washington, from domestically sourced materials. GiroDisc rotors use a proprietary high-carbon iron ring formulated for superior metallurgy and thermal performance, paired with reusable machined-aluminum hats that reduce the long-term cost of maintaining a high-performance brake system. The 2-piece floating design sheds unsprung and rotating mass while remaining street-friendly, delivering race-proven braking for track and street use alike.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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GiroDisc Front Rotors for Evo X Mitsubishi Lancer Evolution [A1-047]

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GiroDisc Front Rotors for Evo X Mitsubishi Lancer Evolution

Bolt-On and Go

Features

What’s Included

Applications

Notes

Frequently Asked Questions

About GiroDisc

Reviews