STM Tuned Promo Codes and Coupons September 2025

STM Tuned logo

STM Tuned

STMT Tuned is an online fashion retailer specializing in trendy women's clothing and accessories. The brand focuses on contemporary streetwear and casual fashion at accessible price points, targeting young fashion-conscious consumers. They offer worldwide shipping and regularly update their collection with new styles.

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Today's STM Tuned discount codes

TOP PICK
STM Tuned logo

20% off

1080 uses
high

worked 8 days ago

20% Off Stm Closeout Deals at STM Tuned
STM Tuned logo

10% off

82 uses
high

worked 8 days ago

10% Off Storewide at STM Tuned
STM Tuned logo

5% off

8 uses
medium

worked 6 months ago

Score 5% off with promo code
STM Tuned logo

5% off

6 uses
medium

worked 7 months ago

Take 5% off with discount code

Featured STM Tuned Products

Weldon 800 HP Fuel Pump All Fuel Types (A2005-A)

Weldon 800 HP Fuel Pump All Fuel Types (A2005-A)

The Weldon A2005-A electric fuel pumps are specifically engineered for application in both carbureted and fuel-injected engines. This fuel pump is self priming, and delivers a consistent and precise fuel flow. Additionally, these billet pumps are entirely serviceable, with their pump element crafted from high-quality tool steel.Vehicle Fitment:• Universal ProductFor Fuel Injected Engines:• 700 HP @ 50 PSI (Naturally Aspirated)• 500 HP at 80 PSI (Boosted)For Carbureted Engines:• 800 HP @ 7 PSI (Naturally Aspirated)• 600 HP @ 30 PSI (Boosted)Specs:• Precise, consistent fuel delivery• Self priming• Pump element is 100% tool steel• Body machined from billet aluminum• All billet pumps are 100% serviceable• For carbureted and injected engines• -8 inlet and outlet o-ring ports• Weighs 4.4 poundsFiltration Recommendations: • Pre-Pump Filter (100 Micron Stainless) • After-Pump Filter (10 or 40 Micron) • For fuels other than gasoline, a stainless filter element is recommended. Compatible Fluids:• Gasoline • Methanol• Diesel• Ethanol• All racing fuelsDiscounts:Weldon products are not available for discounts or codes. See more Weldon Products

USD 706.29

Weldon 1000-1300 HP Fuel Pump -8/8AN (D2015-A)

Weldon 1000-1300 HP Fuel Pump -8/8AN (D2015-A)

The Weldon D2015-A electric fuel pumps are designed for both carbureted and fuel-injected engines. This fuel pump is self priming, and delivers a consistent and precise fuel flow. Additionally, these billet pumps are entirely serviceable, and have breakaway coupling to prevent pump or motor damage if contaminated. Vehicle Fitment: • Universal ProductFor Fuel Injected Engines:• 1100 HP @ 50 PSI (Naturally Aspirated)• 1000 HP at 80 PSI (Boosted) For Carbureted Engines: • 1300 HP @ 7 PSI (Naturally Aspirated)• 1100 HP @ 30 PSI (Boosted) Specs:• Precise, consistent fuel delivery• Self priming• Pump element is 100% tool steel• Body machined from billet aluminum• All billet body pumps are 100% serviceable• Breakaway coupling prevents pump / motor damage in the event of contamination• For carbureted and injected engines• -8 inlet and -8 outlet o-ring ports (Note: If you need -12 inlet and -10 outlet, check out the DB2015-A Fuel Pump)• Weighs 5.5 pounds Filtration Recommendations: • Pre-Pump Filter (100 Micron Stainless) • After-Pump Filter (10 or 40 Micron)• For fuels other than gasoline, a stainless filter element is recommended. Compatible Fluids: • Gasoline• Methanol• Diesel• Ethanol• All racing fuels Discounts:Weldon products are not available for discounts or codes. See more Weldon Products

USD 764.77

Weldon Fuel Filter 100 Micron (Pre-Pump)

Weldon Fuel Filter 100 Micron (Pre-Pump)

These Weldon fuel filters come with a 100 micron stainless steel filter element and are designed to be a pre-pump filter, placed in-line before the fuel pump. These filters are available with -8AN, -10AN or -12AN inlet and outlet ports.Features:• Over 60 square inches of filtering area• 8AN, 10AN, 12AN, or 12AN LONG O-ring ports• Radiused end caps to improve fuel flow within filter• Compact size: 5.5" long x 2.38" diameter• Long 100 Micron filter dimensions are 6.75" in length by 2.38" in diameter• Bright Dipped Anodized for a long lasting high-performance finish• Replaceable Filter Elements available• Minimal pressure dropPurchase Includes:(1) Filter Housing with Stainless ElementNotes: • 10/40 Micron filters are designed to be placed in line AFTER the pump. • 100 Micron filters are designed to be a pre-pump filter. • For fuels other than gasoline, a stainless filter element is recommended. • Cellulose should never be used with E85! Replacement Filter Elements are Also Available:If you need to replace your filter, we also offer the elements separately.• 100 Micron Stainless Steel Filter Element Discounts:Weldon products are not available for discounts or codes. Part Number: Size: Element: WEQ08100SSN -8AN 100 Micron Stainless WEQ10100SSN -10AN 100 Micron Stainless WEQ12100SSN -12AN 100 Micron Stainless WEQ12100SSN-L -12AN Long 100 Micron Stainless See more Weldon Products

USD 125.23

Weldon 1400 HP Fuel Pump (1100-A)

Weldon 1400 HP Fuel Pump (1100-A)

The Weldon Racing 1100-A fuel pump is an electric pump rated up to 1400 HP for naturally aspirated or carbureted engines. This pump is compatible with gasoline only. Self-priming pump with a quiet, consistent flow. The pump components are 100% metallic with billet end caps and 304 brushed stainless steel housing.Vehicle Fitment:• Universal Product• Compatible with gasoline ONLY• Not compatible with alcohol, E85/ethanol based fuelsFor Fuel Injected Engines:• 1400 HP @ 50 PSI (Naturally Aspirated)• 1000 HP at 80 PSI (Boosted)For Carbureted Engines:• 1600 HP @ 7 PSI (Naturally Aspirated)• 1500 HP @ 30 PSI (Boosted)Specs:• Extremely quiet• Precise, consistent fuel delivery• Self priming• Continuous duty pump with extremely low current draw• All internal pump components are 100% metallic• Housing is made from 304 brushed stainless steel• MIL-SPEC anodized black billet end caps• For carbureted and injected engines• -10 inlet and outlet o-ring ports• Two stainless steel T-bolt style clamps included with each pump • Weighs 6 poundsFiltration Recommendations: • Pre-Pump Filter (100 Micron Stainless) • After-Pump Filter (10 or 40 Micron) • For fuels other than gasoline, a stainless filter element is recommended. Compatible Fluids:• GasolineDiscounts:Weldon products are not available for discounts or codes. See more Weldon Products

USD 513.79

What STM Tuned coupons are available today?

We track so many discount codes. Read about today's STM Tuned coupon statistics.

19
STM Tuned deals available today
2
Active STM Tuned codes
20% off
Biggest discount available
Get the best STM Tuned promo codes and coupons that actually work. Our community of sustainability minded shoppers helps you save by testing and sharing:
  • Verified promo codes with live success rates from recent shoppers!
  • Exclusive single-use codes shared by our community (19 active codes).
  • Drop alerts when STM Tuned's most popular items go on sale!
  • Deals for those who want extra savings opportunities
  • Insider savings tips from experienced STM Tuned shoppers who know the best deals.

Why TerraCoupons finds better STM Tuned discounts:

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Note: Our community tests every STM Tuned promo code and shares results in real-time. Check success rates and shopping tips in the activity feed to find what works best for your purchase.
STM Tuned logo

15% off

1 uses
medium

worked 7 months ago

Take 15% off with discount code
STM Tuned logo

20% off

3 uses
medium

worked 7 months ago

Take 20% off with discount code
STM Tuned logo

5% off

108 uses
low

worked 9 months ago

5% Off Storewide at STM Tuned
STM Tuned logo

10% off

766 uses
low

worked 8 months ago

10% Off Stm 925 Lightweight Battery Kit For Evo at STM Tuned

More STM Tuned Products

Weldon Mechanical Racing Fuel Pump 1400HP Plus (34704)

Weldon Mechanical Racing Fuel Pump 1400HP Plus (34704)

Weldon's mechanical fuel pumps are engineered to accommodate fuel-injected engines with power levels exceeding 2,400 hp. Compatible with gas, methanol, diesel, ethanol, and all racing fuels. These fuel pumps feature billet aluminum housings, precision-ground shafts and gear sets, and multi-directional flanges with a 3-bolt mounting pattern. Vehicle Fitment: • Universal Product Fuel Injected Engines: • 2400 HP at 80 PSI (Boosted) Specs: • Billet aluminum housing • 4.8 GPM • Precision ground shafts and gear sets • Multi-directional flange with 3 bolt mounting pattern • Compatible with the A2047 High Flow Regulator • Weighs 3.0 lbs Filtration Recommendations: • Pre-Pump Filter (100 Micron Stainless) • After-Pump Filter (10 or 40 Micron)• For fuels other than gasoline, a stainless filter element is recommended Compatible Fluids: • Gasoline• Methanol• Diesel• Ethanol• All racing fuels Discounts:Weldon products are not available for discounts or codes.   See more Weldon Products

USD 685.88

Weldon Stainless Steel Fuel Filter Element

Weldon Stainless Steel Fuel Filter Element

Weldon replacement stainless steel fuel filter elements are available 10 or 100 micron. These have over 60 square inches of filtering area and are compatible with all Weldon housings as well as most other manufacturers. Features a stainless steel filter element and stainless end caps.Features:• 60+ square inches of filtering area• Stainless steel filter element• Stainless steel end caps• Fits all Weldon housings and most other manufacturers Notes:• 10 Micron filters are designed to be placed in line AFTER the pump.• 100 Micron filters are designed to be a pre-pump filter. Purchase Includes:(1) FilterDiscounts:Weldon products are not available for discounts or codes. Part Number: Element: WEQ10MCSS 10 Micron Stainless Steel WEQ100MC 100 Micron Stainless Steel WEQ100MC-L 100 Micron Stainless Steel (Long) See more Weldon Products

USD 51.91

Weldon 1000-1300 HP Fuel Pump -12/10AN (DB2015-A)

Weldon 1000-1300 HP Fuel Pump -12/10AN (DB2015-A)

The Weldon DB2015-A electric fuel pumps are engineered for use in both carbureted and fuel-injected engines. These fuel pumps are self-priming and ensure a reliable and accurate fuel flow. These billet pumps can be fully serviced, and feature a breakaway coupling to safeguard against pump or motor damage in case of contamination.Vehicle Fitment:• Universal ProductFor Fuel Injected Engines:• 1100 HP @ 50 PSI (Naturally Aspirated)• 1000 HP at 80 PSI (Boosted)For Carbureted Engines:• 1300 HP @ 7 PSI (Naturally Aspirated)• 1100 HP @ 30 PSI (Boosted)Specs:• Precise, consistent fuel delivery• Self priming• Pump element is 100% tool steel• Body machined from billet aluminum• All billet body pumps are 100% serviceable• Breakaway coupling prevents pump / motor damage in the event of contamination• For carbureted and injected engines• -12 inlet and -10 outlet o-ring ports (Note: If you need -8 inlet and -8 outlet, check out the D2015-A fuel pump)• Weighs 5.5 pounds Filtration Recommendations: • Pre-Pump Filter (100 Micron Stainless) • After-Pump Filter (10 or 40 Micron) • For fuels other than gasoline, a stainless filter element is recommended. Compatible Fluids:• Gasoline• Methanol• Diesel• Ethanol• All racing fuels Discounts:Weldon products are not available for discounts or codes. See more Weldon Products

USD 750.21

Weldon 800 HP Fuel Pump (A600-A)

Weldon 800 HP Fuel Pump (A600-A)

The Weldon Racing A600-A fuel pump is an electric pump rated up to 800 HP for naturally aspirated or carbureted engines. This pump is compatible with gasoline only. Self-priming pump with a quiet, consistent flow. The pump components are 100% metallic with billet end caps and 304 brushed stainless steel housing.Vehicle Fitment:• Universal Product• Compatible with gasoline ONLY• Not compatible with alcohol, E85/ethanol based fuelsFor Fuel Injected Engines:• 700 HP @ 50 PSI (Naturally Aspirated)• 500 HP at 80 PSI (Boosted)For Carbureted Engines:• 800 HP @ 7 PSI (Naturally Aspirated)• 600 HP @ 30 PSI (Boosted)Specs:• Extremely quiet• Precise, consistent fuel delivery• Self priming• Continuous duty pump with extremely low current draw• All internal pump components are 100% metallic• Housing is made from 304 brushed stainless steel• MIL-SPEC anodized black billet end caps• For carbureted and injected engines• -10 inlet and outlet o-ring ports• Two stainless steel T-bolt style clamps included with each pump• Weighs 6 poundsFiltration Recommendations: • Pre-Pump Filter (100 Micron Stainless) • After-Pump Filter (10 Micron) Compatible Fluids:• GasolineDiscounts:Weldon products are not available for discounts or codes. See more Weldon Products

USD 475.89

STM Tuned logo

10% off

592 uses
low

worked about 1 year ago

10% Off Storewide at STM Tuned
STM Tuned logo

10% off

173 uses
low

worked 9 months ago

10% Off Storewide at STM Tuned
STM Tuned logo

5% off

303 uses
low

worked about 1 year ago

5% Off Storewide at STM Tuned
STM Tuned logo

10% off

68 uses
low

worked almost 2 years ago

10% Off Hawk Performance Products at STM Tuned

Sustainability Score

42%
STMT Tuned shows limited transparency regarding their supply chain and manufacturing processes. While they have introduced some recycled materials in their packaging, their overall environmental impact remains concerning. The brand lacks clear policies on labor conditions and animal welfare. Their sustainability commitments appear superficial without substantial evidence of implementation or third-party verification.

About STM Tuned

3.0 (2)

FAQs

Major sales typically occur during Black Friday (November), end-of-season clearances (January and July), and occasional flash sales throughout the year. Sign up for their newsletter to get notified about upcoming sales.

The best deals can be found during Black Friday sales and end-of-season clearances. Additionally, shopping mid-week (Tuesday-Thursday) often gives you better access to new arrivals and full size ranges.

Yes, students can receive a 10% discount on full-priced items with valid student ID verification through Student Beans.

Subscribe to their newsletter for exclusive discount codes, follow their social media accounts for flash sales, and check their website banner for ongoing promotions.

In the past month, STM Tuned has launched 7 new promo coupons for shopper discounts. This indicates that STM Tuned provides regular opportunities for customers to save money on their purchases.

On average, STM Tuned provides 3.5 discount coupons each month. Based on historical data, the average time between STM Tuned coupon releases every 9 days. However, this rate depends on various factors such as seasonal promotions (Black Friday, Cyber Monday, etc.), product launches, or other marketing initiatives. To stay informed about upcoming discounts and promotions, we recommend checking STM Tuned website regularly, subscribing to email newsletters, and following them on social media.

STM Tuned is offering 2 working store-wide codes, however they are also offering 17 additional discount codes with a best discount of 20% off

terra.coupons is the #1 provider of discount codes for your favorite retailers, such as STM Tuned. As a crowd-sourced platform for coupon codes, we accurate codes for over 10,000 stores. Save time and avoid expired codes by checking terra.coupons for the latest STM Tuned discount codes.

Curated by

Aleksa P.

Aleksa P.

Deal Curator

Last updated September 2025

Aleksa is a deal finder from the tech-savvy city of Austin, Texas. A keen coder by day and a discount guru by night, Aleksa checks back regularly to update you with new deals.

Latest STM Tuned coupon activity

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