Easter Sale 2026

The STM 3" SD Intake Pipe with K&N Air Filter is made in-house of lightweight aluminum and is designed for the 90-99 DSM running Speed Density ...

"Allow 7-14 Days For Parts Manufacture/Order Processing Before Shipping" The STM Titanium Exhaust for the Huracán weighs only 19.8 pounds and will ...

"Allow 4-6 Weeks For Parts Manufacture/Order Processing Before Shipping" Looking for something to gain a bit up-top while still retaining your low ...

"Allow 7-14 Days For Parts Manufacture/Order Processing Before Shipping" The STM Titanium Catback Single Exit Exhaust for the Evo X weighs in at on...

"Allow 7-10 Days For Parts Manufacture/Order Processing Before Shipping" The STM Stainless Race Pipe with High Flow Cat for the Evo X features a fu...

The 4" STM High Flow Universal Air Filter is 7" tall and is a great versatile air filter with plenty of volume for limitless applications. Features...

"Allow 7-10 Days For Parts Manufacture/Order Processing Before Shipping" The STM Stainless Race Pipe for Evo X features a full stainless steel cons...

The STM Fast Idle Air Valve Bypass Plate is cut from 1/8" aluminum and when sandwiched in the lower half of the throttle body, this blocks the unwa...

The STM Stainless Steel Throttle Body Elbow for 1G/2G DSM is designed to eliminate the restrictive, stock pipes that come factory or simply to upgr...

"Allow 7-14 Days For Parts Manufacture/Order Processing Before Shipping" The STM Evo X Stainless Steel Catback Single Exit Exhaust weighs in at onl...

The STM 4" Universal SD Intake Pipe Kit is for use on cars with no MAF and a 4" turbo inlet. This kit is designed to be modified to fit your specif...

"Allow 7-14 Days For Parts Manufacture/Order Processing Before Shipping" The STM Evo X Stainless Steel Catback Dual Exit Exhaust will bolt up to yo...

The STM Fast Idle Air Valve Block Off Plate is cut from 1/8" aluminum and designed to be used if you have removed the bottom portion of your thrott...

"Allow 4-6 Weeks For Parts Manufacture/Order Processing Before Shipping" The STM FPR Kits for the 1G DSM include all fittings, hardware and line to...

The STM Stock MAF Intake Pipe Kit is designed for your Evo 8/9 running the factory MAF sensor and will adapt to any stock-style blow off valve. The...

The STM Spark Plug Gapping Tool allows for easy handling of your spark plug and gauge for for a smooth, controlled and precise gap. So you can stop...

"Allow 7-14 Days For Parts Manufacture/Order Processing Before Shipping" The STM Evo X recirculated O2 housing downpipe combo is the perfect bolt-o...

The STM Triple-Pump Fuel Delivery Kit is your bolt-on solution to deliver all the fuel you need up to... well, we havent found the limit yet. STM s...

"Allow 7-14 Days For Parts Manufacture/Order Processing Before Shipping" STM Evo X O2 Housing Downpipe with Atmosphere Dump is the perfect bolt-on ...

"Allow 7-14 Days For Parts Manufacture/Order Processing Before Shipping" The STM 3.5" Titanium V-band Exhaust was designed exclusively for the STM ...

The STM Twin Pump Fuel System is 100% E85 safe and will get you all the fuel you need for an 8-second pass up to 900 HP (depending on dyno). Includ...

The STM In-Line Fuel Pressure Gauge features a -6AN adapter for a clean and simple install. Comes fully assembled with PTFE tape. The fittings is b...

The STM In-Line Fuel Pressure Gauge features a -6AN adapter for a clean and simple install. Comes fully assembled with PTFE tape. The fittings is b...

The STM R35 GT-R Fuel Tank Drain Kit makes it simple and easy to drain out the fuel in your tank. This is handy if you switch fuels for racing, o...

The STM 3" Aluminum SD Intake Pipe is fabricated, in-house at STM and designed for the Evo 8/9 running Speed Density without the MAF. Includes your...

The STM Double-Pumper Fuel Feed Kit is designed for the Evo 8/9 running the Buschur Racing "Double Pumper" Fuel Pump Kit. The STM Feed Kit uses a W...

The factory Evo X fuel pressure regulator line is known to either rot out or pop off causing the car to run lean and present major issues. If you h...

The STM Walbro 450 Package Deal for Evo 4/5/6/7/8/9 delivers enough fuel to trap roughly 140 MPH and make 600 WHP with E85. If you don't already ha...

The STM Silicone Inlet Hoses for the V10 Audi R8, Lamborghini Huracán and the LP Gallardo features a smooth-flowing design compared to the rippled,...

The STM E85 safe fuel feed line kit works with the 1G/2G DSM, 3000GT and Stealth models. Includes everything needed to feed your fuel rail from you...

The STM Coil-On-Plug (COP) Ignition System fits all Evo 4/5/6/7/8 is a direct replacement to your factory coils and wires and simply plugs in and b...

The STM air filter and Mitsubishi MAF adapter kit is a simple and clean upgrade to remove your stock air box and open up the air flow. This kit inc...

The STM Coil-On-Plug (COP) Ignition System for the MIVEC Evo 9 is a direct replacement to your factory coils and wires and simply plugs in and bolt...

This STM Coil-On-Plug (COP) Ignition System for the Evo 4/5/6/7/8 features the R35 GTR NGK coils that can support up to 800 horsepower! If you are ...

This STM Coil-On-Plug (COP) Ignition System for the Evo 9 features the R35 GTR NGK coils that can support up to 800 horsepower! If you are at the l...

This is the replacement harness used with the STM Denso-style coil on plug (COP) ignition kits for Evo 4-8 and Evo 9. Purchase includes the harness...

The STM Evo 8/9 M&W Ignition Box Mounting Bracket is USA-made of lightweight aluminum allowing you to mount your ignition box vertically to t...

These replacement springs are used with the STM Denso-style coil on plug (COP) ignition kits for Evo 4-8 and Evo 9. These little springs can get da...

"Allow 7-14 Days For Parts Manufacture/Order Processing Before Shipping" The STM Titanium CatBack Exhaust for the Evo 7/8/9 weighs in at only 10.4 ...

The STM FPR Kits for the 2G DSM include all fittings, hardware and line to go from your fuel rail to factory-style or -6AN outlet regulator and bac...

"Allow 7-14 Days For Parts Manufacture/Order Processing Before Shipping" The STM Stainless Steel High Flow Cat for the Evo 8/9 is a direct replacem...

When these seals wear out, they can cause leaks, sticking, and jamming of the throttle plate. We tested a car on our dyno at STM with leaky seals a...

The STM Black Fuel Rail fits all Evo 4/5/6/7/8/9 models and is available with your combination choice of -6AN and -8AN fittings. The rail and fitti...

The STM E85 Fuel Feed Line Kit for the Evo 7/8/9 is 100% E85 safe and includes everything needed to feed your fuel rail from your factory hard line...

If your fuel lines are in danger of becoming rusted and damaged, STM now offers the solution! The STM -6AN Fuel Tank to Rail Kit fits all Evo 7/8/9...

The 4.5" STM High Flow Universal Air Filter is 5" tall and is a compact, versatile air filter with plenty of volume for limitless applications. Fea...

The STM divided turbo outlet gasket for Evo X is cut from T304 stainless steel, with a 20 gauge thickness and made in the USA! Much stronger than t...