---
product_id: 54550568
title: "35mm / 38mm / 44mm External Wastegate Spring (15 psi)"
brand: "tda motorsports"
price: "S$39"
currency: SGD
in_stock: true
reviews_count: 8
url: https://www.desertcart.sg/products/54550568-35mm-38mm-44mm-external-wastegate-spring-15-psi
store_origin: SG
region: Singapore
---

# Precision 15 PSI pressure control Available in 35mm, 38mm, 44mm sizes Outer seating type for optimal fit 35mm / 38mm / 44mm External Wastegate Spring (15 psi)

**Brand:** tda motorsports
**Price:** S$39
**Availability:** ✅ In Stock

## Summary

> ⚡ Unlock turbocharged precision with every PSI!

## Quick Answers

- **What is this?** 35mm / 38mm / 44mm External Wastegate Spring (15 psi) by tda motorsports
- **How much does it cost?** S$39 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/54550568-35mm-38mm-44mm-external-wastegate-spring-15-psi)

## Best For

- tda motorsports enthusiasts

## Why This Product

- Trusted tda motorsports brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Tested for Precision:** Calibrated and tested specifically for wastegate compatibility, guaranteeing consistent cracking and full open pressures.
- • **Multiple Size Options:** Choose from 35mm, 38mm, or 44mm to perfectly match your Tial-style external wastegate setup.
- • **Durable Outer Seating Design:** Engineered for secure fit and longevity, ensuring your wastegate spring performs under pressure.
- • **Consistent 15 PSI Boost Control:** Maintain peak turbo performance with exact 15 psi operating pressure for reliable power delivery.
- • **Universal Compatibility (Except MVR/MVS):** Fits most Tial-style external wastegates, expanding your upgrade options without compromise.

## Overview

The 15 PSI External Wastegate Spring by TDA Motorsports offers precise boost control with a cracking pressure of 14 psi and full open at 19 psi. Available in 35mm, 38mm, and 44mm sizes, it fits most Tial-style external wastegates (excluding MVR and MVS models). Designed with an outer seating type and tested for consistent performance, this spring ensures your turbo setup delivers reliable and optimized boost pressure.

## Description

15 PSI Features:Seating Type: OuterCracking Pressure: 14 psi / 0.97 barApproximate Operating Pressure: 15 psi / 1.03 barFully Open Pressure: 19 psi / 1.31 barDiameter (ID / OD): 1.984" / 2.362"Length: 4.200"Gauge: 0.192"  Notes:Spring(s) are tested against the wastegate only. The actual working pressure may vary depending on the type of turbo used in the setup. To test how the turbo affects the wastegate spring's pressure, test the wastegate with and without turbo. Take account of any differences when selecting the rating of the spring(s) you need.

## Features

- 35mm Tial / Tial-style external wastegate
- 38mm Tial / Tial-style external wastegate
- 44mm Tial / Tial-style external wastegate
- Not compatible with Tial MVR and MVS wastegates
- Colors may vary, however, psi stays the same

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | TDA Motorsports |
| Brand | TDA Motorsports |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | WGS |

## Images

![35mm / 38mm / 44mm External Wastegate Spring (15 psi) - Image 1](https://m.media-amazon.com/images/I/71DfyBTfC8L.jpg)
![35mm / 38mm / 44mm External Wastegate Spring (15 psi) - Image 2](https://m.media-amazon.com/images/I/91heLFrx6RL.jpg)
![35mm / 38mm / 44mm External Wastegate Spring (15 psi) - Image 3](https://m.media-amazon.com/images/I/81ksmHNJnGL.jpg)
![35mm / 38mm / 44mm External Wastegate Spring (15 psi) - Image 4](https://m.media-amazon.com/images/I/81k54qmUryL.jpg)
![35mm / 38mm / 44mm External Wastegate Spring (15 psi) - Image 5](https://m.media-amazon.com/images/I/810bA+O1ylL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐ 3.0 out of 5 stars







  
  
    No consistent regulation of boost
  

*by A***N on Reviewed in the United States on June 3, 2022*

When first installed this 12psi spring only held 10. As time when on it held less and fluctuated even between gears. Not a very solid wastegate spring

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    This large..wont work on 35, 38 mm, too big..
  

*by H***A on Reviewed in the United States on June 12, 2021*

Nice but too big for my gate, 38mm tial knock off...

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Did it's job
  

*by A***R on Reviewed in the United States on October 2, 2019*

Did exacally what I needed it to and stopped my wastegate flutter under boost beyond my old springs capability.  The thing was pretty tough to put in because it has so much tension.

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**Shop now:** [https://www.desertcart.sg/products/54550568-35mm-38mm-44mm-external-wastegate-spring-15-psi](https://www.desertcart.sg/products/54550568-35mm-38mm-44mm-external-wastegate-spring-15-psi)

---

*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-02-12*