GReddy 12040911 Compression Tube Specifications
| Specification | Details |
|---|---|
| Manufacturer | GReddy / TRUST |
| Part number | 12040911 |
| Product type | Compression tube / charge pipe |
| Vehicle | Mazda RX-7 FD3S |
| Advertised years | 1993–1996 |
| Engine | 1.3L 13B-REW twin-turbo rotary |
| Construction | Aluminum |
| Finish | Polished / buffed aluminum |
| Configuration | One-piece compression tube |
| Piping configuration | 70 mm section; adaptable to 80 mm piping as described by GReddy |
| Installation | Vehicle-specific; verify piping configuration |
Fitment note: U.S.-market FD RX-7 models were sold for 1993–1995. The advertised 1996 application refers to other markets. Confirm compatibility with existing intercooler piping and modifications before ordering.
Does the GReddy Compression Tube Increase Horsepower?
Replacing restrictive or deteriorating boost piping can improve the efficiency and reliability of a turbocharged intake system. However, the GReddy 12040911 should not be mistaken for a guaranteed horsepower upgrade.
Its primary advantages are durability, airflow-path optimization, and compatibility with performance-oriented piping arrangements.
On a modified 13B-REW with increased boost, a stronger compression tube can be particularly valuable because it eliminates one potential source of pressure-related failure.
For enthusiasts planning larger performance upgrades, understanding how airflow restrictions and turbocharger efficiency affect engine output is essential.
Explore our related guides:
These articles provide additional information about airflow efficiency, forced induction, and tuning strategies for modified performance engines.
Why Choose GReddy for Your Mazda RX-7?
GReddy has been a recognized name in Japanese performance tuning for decades, developing turbocharging, intercooler, exhaust, and engine-management products for enthusiast vehicles.
For FD3S owners, the GReddy 12040911 offers a straightforward way to replace a vulnerable factory component with a purpose-built aluminum alternative.
The polished finish also complements the distinctive appearance of the RX-7’s rotary engine bay, especially when paired with other aluminum piping and intercooler upgrades.
See the official GReddy FD3S Compression Tube specifications.
Frequently Asked Questions
Does the GReddy 12040911 fit the 1993–1996 Mazda RX-7?
Yes. GReddy lists part number 12040911 for the FD3S chassis with the turbocharged 13B-REW engine. Compatibility with modified piping arrangements should be confirmed before installation.
Is the GReddy compression tube aluminum or plastic?
The GReddy 12040911 features polished aluminum construction, replacing the factory plastic compression tube.
Will this compression tube improve throttle response?
Reducing airflow restrictions can support improved throttle response, particularly on modified turbocharged engines. Actual improvements depend on the complete intake and boost system, and no specific response improvement is guaranteed.
Does the GReddy 12040911 work with factory twin turbos?
The product is designed for the FD3S 13B-REW platform. Verify the intercooler and piping configuration, especially when mixing factory components with aftermarket parts.
Is the GReddy 12040911 a complete intercooler kit?
No. It is a single compression tube, not a complete intercooler system. Additional piping, couplers, or hardware may be necessary depending on the installation.
Is the GReddy compression tube street legal in California?
Do not assume CARB approval. GReddy publishes emissions-use restrictions for its performance products, and retailers identify this part as not CARB legal. Verify applicable regulations before installation on an emissions-controlled road vehicle.
Upgrade Your RX-7 With GReddy Performance
A well-built FD3S is about more than peak horsepower. Reliable boost delivery, properly matched components, and durable hardware are just as important.
The GReddy 12040911 Compression Tube delivers a polished aluminum replacement for the original plastic component, making it a worthwhile consideration for RX-7 owners maintaining or upgrading their rotary-powered machines.
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