Mazdaspeed Externally Wastegated Turbine Housing – GT35, and GTX35

This Mazdaspeed externally wastegated turbine housing is purpose-built for GT35 and GTX35 series Garrett turbochargers, designed for enthusiasts running Mazdaspeed3 or Mazdaspeed6 platforms who demand a true bolt-on upgrade path. It brings external wastegate control to the Garrett GT/GTX lineup while preserving compatibility with the factory manifold and downpipe, making it the logical choice for builders stepping up from stock turbo architecture without fabricating custom plumbing.

Specifications

• Compatible Turbo Series: Garrett GT35, GTX35
• Wastegate Flange: TiAL MVS-flanged
• Wastegate Configuration: Externally wastegated

Performance & Application

Engineered specifically for the Mazdaspeed3 and Mazdaspeed6 platforms, this turbine housing enables builders to run GT35 or GTX35 series Garrett turbos while retaining the stock Mazdaspeed manifold and downpipe. The external wastegate configuration, flanged for a TiAL MVS wastegate, gives tuners precise boost control that internally gated housings can’t match. This is the right housing for Mazdaspeed owners upgrading their turbo setup who want a direct bolt-on solution rather than a full custom exhaust manifold conversion.

Compatibility & Fitment

• Mazdaspeed3
• Mazdaspeed6 (requires external wastegate relocation elbow adapter and v-band clamp, sold as an additional option)
• Compatible with the stock Mazdaspeed manifold and downpipe

Frequently Asked Questions

Which Garrett turbo series does this turbine housing fit?

This turbine housing is compatible with Garrett GT and GTX series turbochargers, specifically the GT35 and GTX35.

What wastegate does this housing use?

The housing is flanged for a TiAL MVS wastegate and is configured for external wastegate operation.

Does this fit the Mazdaspeed6 the same way as the Mazdaspeed3?

The Mazdaspeed6 application requires an additional external wastegate relocation elbow adapter and v-band clamp, which is not required for the Mazdaspeed3.

Will this work with my stock Mazdaspeed manifold and downpipe?

Yes, the turbine housing is compatible with the stock Mazdaspeed manifold and downpipe.

For Mazdaspeed3 and Mazdaspeed6 owners upgrading to a GT35 or GTX35 series Garrett turbo, this externally wastegated, TiAL MVS-flanged turbine housing delivers a direct bolt-on path to serious boost control without abandoning the factory manifold and downpipe.