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Air and Fuel› Superchargers, Turbochargers and Components
Turbosmart
Turbosmart WG40 11PSI Middle Spring Brown/Red
SKU: T009 TS-0505-2004
Easy — 1–2 hours
Overview
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Part #: TS-0505-2004
Turbosmart's springs are designed to work with our Plumb Back, Dual Port and Supersonic blow off valves. They offer a wide range of spring rates to suit your driving style and application. Turbosmart's springs are made from high-quality materials and are designed to maintain the peak performance of your blow off valve under the most extreme conditions. Choose from our selection of Turbosmart springs to get the perfect fit for your car and the best performance from your blow off valve.
Spring - Suit Turbosmart Ultra-Gate38 (38mm), Comp-Gate40 (40mm), Hyper-Gate45 (45mm) External Wastegates, and Internal Wastegate Actuators (IWG-75).
This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Vehicle Symptoms
- Boost spikes during hard acceleration
- Inconsistent boost pressure under load
- Lack of power on high boost demand
- Overboost condition triggering limp mode
- Turbo lag or slow spool-up
Diagnostic Codes
- P0234 – Engine Overboost Condition
- P0236 – Turbocharger/Supercharger Boost Sensor A Range/Perf
Relevant Conversations
- car overboosting at high rpm fix
- P0234 code wastegate spring replacement
- Turbosmart 11 psi spring vs Forge
- install wastegate spring 11 psi instructions
- boost spikes during acceleration cause
- underboost P0299 wastegate spring upgrade
- best wastegate spring for 300hp turbo
- Turbosmart IWG spring review quality
- how to change wastegate spring step by step
- wastegate spring upgrade for more boost
Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
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Specifications
| Brand | Turbosmart |
| Part Number | T009 TS-0505-2004 |
About MOTORMIA
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Returns & Fitment
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.
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