STM Small Battery Kit for Evo 5/6

The STM lightweight small battery kit for Evo 5/6 allows you to drop 21 pounds vs the factory battery, lightens up the front of the car and clears room in the engine bay for new intercooler piping.

Newly redesigned in December 2024, the STM tray is now machined in-house from billet aluminum. Includes stainless hardware and mounts to existing points in the chassis for an easy install.

The battery tray is available with or without the Odyssey PC680. Battery purchase will include a set of new SAE US terminals. Please note we cannot ship batteries outside the continental USA.

Vehicle Fitment:
Mitsubishi Lancer Evolution V VI
• Fits Evo 5/6 - NOT Evo 4
• We include SAE US sized battery terminals if you purchase the whole kit. Some Japanese models may have a JIS terminal size and that will not fit. You'll have to source a JIS terminal locally that will work with your car.
• This is not a direct fit for Evo 4, the chassis bolt hole is just a bit off.

Battery Tray Features:
• Billet Aluminum Base
• Tig-Welded Aluminum
• CNC Engraved
• Stainless Hardware
• Made in the USA
• Uses existing bolt holes for mounting
• Lightens the front of the car and transfers weight to the back wheels
• Clears room in the engine bay

Install Notes:
Small batteries can fail if the posts are not torqued to 50 inch pounds. Additional torque will cause damage to your battery, so please be careful when installing.

Performance Notes and Warranty:
These small battery kits are used for racing! They are not designed for for an average daily driver and would absolutely NOT support any sort of aftermarket stereo and they are not great in cold temperatures. These batteries are not even intended for automotive use, but we and most of the racing community use them as such. STM does not warranty batteries. We offer the STM Lifetime Guarantee on the STM Battery Tray, but we cannot warranty the batteries themselves as we are all using them in a way they were not intended for and any attempt we have made to have them warrantied by the manufacturer has been denied.

The typical life we get from one of these batteries varies from 1 year to 10 years. Expect to treat this battery as a maintenance item - once it's done, just get a new one. For a typical 300-600 HP street car, it's fine to sit for a week, drive and race on the weekends or drive everyday in nice temperatures (40-90°). If it sits longer than 2 weeks or if it's in freezing temps, we recommend keeping the charger handy.

These batteries will start your car with no problems and charge naturally with a working alternator, but if you're having ignition issues... in our experience you'll get about 10-15 attempts off a small battery before it starts to fade if it's fully charged. If it's been sitting untouched in a cold garage for 2 months, don't even bother trying, put it on a charger first.

STM Battery Tray Includes:
(1) STM Battery Tray
(2) Post Braces
(2) 1/4x20 Stainless Button Head Bolts
(2) M6 Stainless Flat Washers
(2) M6 Stainless Lock Washers
(2) M8x20 Stainless Button Head Bolts
(2) M8 Stainless Flat Washers

Carbon Fiber Also Available:
We do offer a Carbon Fiber STM Battery Tie Down separately.

Previous Part Numbers: STM-EVO46-BATK-BR-BRTIE, STM-EVO46-BATK-BR-BRTIE-PC680, STM-EVO46-BATK-BR-BRTIE-GEN16, STM-EVO46-BATK-BR-PTIE, STM-EVO46-BATK-BR-PTIE-PC680, STM-EVO46-BATK-BR-PTIE-GEN16, STM-EVO46-BATK-BR-BKTIE, STM-EVO46-BATK-BR-BKTIE-PC680, STM-EVO46-BATK-BR-BKTIE-GEN16, STM-EVO46-BATK-BR-CFTIE, STM-EVO46-BATK-BR-CFTIE-PC680, STM-EVO46-BATK-BR-CFTIE-GEN16, STM-EVO46-BATK-P-BRTIE, STM-EVO46-BATK-P-BRTIE-PC680, STM-EVO46-BATK-P-BRTIE-GEN16, STM-EVO46-BATK-P-PTIE, STM-EVO46-BATK-P-PTIE-PC680, STM-EVO46-BATK-P-PTIE-GEN16, STM-EVO46-BATK-P-BKTIE, STM-EVO46-BATK-P-BKTIE-PC680, STM-EVO46-BATK-P-BKTIE-GEN16, STM-EVO46-BATK-P-CFTIE, STM-EVO46-BATK-P-CFTIE-PC680, STM-EVO46-BATK-P-CFTIE-GEN16, STM-BATK-EVO56-GEN16

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