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The CorkSport Turbo Upgrade is just the right fit for your Mazdaspeed! Capable of built block power and extremely fast spool times, this turbo can make 500+whp and hit 20psi by 3500-3600rpm. The CorkSport CST5 turbo can be tuned for a more laid-back curve that is stock block safe or pushed to 30+psi for built blocks and auxiliary fueling. No matter what build you have this turbo will be sure to impress.
The CST5 Mazdspeed Turbo features a MHI Journal Bearing CHRA, 0.82 Turbine A/R and 4” Anti-Surge Compressor Cover
The CST5 turbo will be available in two boost control setups: Internally Wastegated (IWG) & 44mm Externally Wastegated (EWG) w/included EWG elbow pipe & V-band clamp.
Includes a FREE CorkSport 3.5 bar MAP sensor for accurate boost pressure up to 37psi.
Read The BlogCST5 Spools!! Testing and Validation
The CorkSport CST5 Mazdspeed Turbo is designed with the ideal balance in response and power for the daily-driven Mazdaspeed. Just between the CST4 and CST6, the CST5 can reach ~20psi by 3500-3600rpm and carry power to 7300-7500rpm.
Ease of installation and use is key to all CorkSport Performance Turbochargers. The CST5 retains the factory-style turbine flanges for a painless installation.
The turbine housing is designed with a 0.82 A/R to balance response and top-end power.
4” anti-surge ported compressor housing is utilized for peak performance operation. The anti-surge porting increase the compressor map width paired with an industry standard 4” inlet to maximize the use of 3.5” and 4” intake systems.
MHI Journal bearing CHRA housings are used for both the CST4 and CST5 turbochargers for their increased cooling capacity and proven reliability.
High-performance journal bearings and a 360-degree high-performance thrust bearing is used.
Comparing the compressor and turbine wheels, we have a wheel size ratio of 1:15
Utilizing the Gen1 GTX71 billet compressor wheel, the CST5 can efficiently support 56 lbs/min flowrate and boost pressures over 30psi.
Paired with the compressor wheel is an MHI TF06 high-flow turbine wheel. This wheel uses a 9-blade design which reduces overall rotating mass and thus improves response and spool.
The Internal Wastegate Actuator uses a larger diaphragm and piston for improved boost control for the larger CST5.
Also included is an assortment of springs so you can specifically setup your CST5 for your Mazdaspeed.
The CST5 comes will all the necessary hardware for installation saves you time and money on gaskets, studs, and the specialty parts.
Do you want an easy-to-use Internal Wastegate setup or an External Wastegate setup and screamer pipe? You decide with the CST5!
Internal Wastegate setup includes the 0.82 A/R IWG turbine housing and tunable IWG Actuator.
External Wastegate setup includes the 0.82 A/R EWG turbine housing and V-Band Clamp & Elbow designed for 44mm EWGs. (EWG and Screamer Pipe Not Included)
Don’t worry, if you want to change your setup later you can!
It will take you five hours to install the CorkSport CST5 Turbo Upgrade with our easy-to-use instructions.
5 Hour Install Time
4/5 Difficulty
1-Year Warranty
No CEL
Do you have to switch to a FMIC to fit using stock exhaust manifold?
No you do not, you can run a cst5 with a Tmic.
does it come with custom oil drain line? in my 13' msp3 it looks like stock one, should it be other way?
All of our turbos utilize factory oil drain and feed lines.
Looking to finance your parts purchase and want to get 6 months NO interest on any purchase over $199? Click on the image above for more details.
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