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Perrin Boost Tube For Mass Air Flow Sensor - Blow-Thru (Red)
Part #: PSP-ENG-410RD
$259.99
$254.79
For each
For each
Free Shipping! *to continental U.S. only
Fits On:
02-07 WRX / 04-07 STI
Description:
PERRIN Front Mount Intercooler users can now get a more accurate charge temperature reading and run a VTA BOV with no problems! Instead of measuring the Mass Air Flow (MAF) and air temperature before the turbocharger, the PERRIN PerformanceTM Blow-Thru boost tube moves the mass airflow sensor to the boost tube before the throttle body. The placement of this does many good things like allowing your ECU to read the actual charge temp the engine sees, which eliminates any need for a Cold air intake (MORE IN FEATURES). Also use our Vent to Atmosphere (VTA) Blow off valve with out running rich between shifts, or with out idle problems. (see ASM-INT-600)
The Blow-Thru boost tube also is designed with the BigMAF Intake in mind. Tuners around the world are familiar with this larger than stock MAF housing. This allows for the stock ECU to read more air flow, in turn allowing the tuner to tune beyond 550WHP! This also means the Blow-Thru boost tube needs to be tuned after installed. This part will not function correctly when installed on a stock tuned ECU.
WHAT IS THE BLOW-THRU BOOST TUBE?
The Blow-Thru Boost Tube is a replacement of the large 2.75” tube in the PERRIN FMIC kit that relocates the MAF sensor into the boost tube. The way the MAF sensor works is very simple, and it doesn’t care, or know, if it is under boost or vacuum. This means the sensor can placed in the boost system, or in the intake system, and function normally.
Why do I want this?
LEAKS ARE A PROBLEM OF THE PAST
The MAF sensor is normally located in the intake system before the turbo. In this situation, the turbo sucks in air, compresses it through the boost tubes, and into the engine. If there is leak in the intake system before the turbo (vacuum hose disconnected), it will cause the car to run lean and throw a CEL. If there is leak in the boost system after the turbo (boost hose loose, or popped off), it will cause the car to run rich and throw a CEL. Both situations are dangerous as they can cause sever engine damage.
With the MAF sensor located in the boost tube a short distance before the throttle body, any possible leak in the intake system will never be a problem. And being so close to the throttle body, most possible leaks in the boost system are not going to be a problem either. Also if you have ever had a boost tube blow off and leave you stranded, that is a thing of the past!
NO COLD AIR INTAKE
No more need for a cold air intake! The MAF sensor not only has the airflow sensor in it, but the air temp sensor is also located in it. With the MAF sensor/air temp sensor in the engine bay, it can read the high temps when your car is sitting still. Once you get going down the road, the temps drop significantly, but while waiting for your turn at the drag strip, or at a stoplight, the ECU sees these high temps. The ECU can then pull timing, and do other things that will hurt performance.
A short ram style intake doesn’t loose power because the high temps that get into the engine, but rather from the high temps the ECU sees. At a stoplight, the high intake temps go through the intake, turbo, boost tubes, and intercooler before reaching the engine. The actual temp the engine sees is nowhere near this temp. So the ECU is pulling timing and changing fueling for no reason, as the engine doesn’t see these high temps. With the Blow-Thru Boost tube this all goes away! Since it is mounted just before the throttle body, it will read the air temp the engine sees, and will make for more consistent tuning, driving, and power!
NO TURBULANCE
Another issue with Short ram intakes is that the MAF sensor is very sensitive, and things like fans turning on, and Blow Off Valves venting can change the readings of the sensor. This causes the car to run erratically in idle and cruise situations. With the Blow-Thru boost tube, the sensor is located in a nice smooth straight path of the charge air, which makes for consistent airflow. Again making the drivability smoother, and more power!
BIG MAF SIZE
The Blow-Thru Boost tube is designed using the BigMAF in mind. Since most every car looking at something like this has an upgraded turbo, we decided to size the Blow-Thru boost tube the same as our BigMAF intake systems. The BigMAF intake system is designed with a larger MAF housing than stock. This allows the ECU to read more air entering the engine, and allowing ECU mapping all the way to 550WHP+. This size is also chosen as many tuners have maps built for the BigMAF, and this makes for an easy transition from short ram to Blow-Thru. This also means the Blow-Thru boost tube needs to be tuned after installed. This part will not function correctly when installed on a stock tuned ECU.
VTA BOV Can be used!
One feature many people like is that a Vent to Atmosphere BOV can be used with out the issues associated with a normal intake. The BOV is normally located after the MAF sensor in the boost system, and vents the air back to the boost system after the MAF sensor. With a normal intake, it is important to keep the vented air (from the BOV) in the intake system after the MAF sensor, so the ECU can calculate the amount of air the engine is consuming. If you install a BOV that vents the air to the atmosphere, it is like a boost leak, and can cause the car to run rich. This happens because the air the ECU thought the engine was consuming didn’t get consumed and extra fuel is added. This causes back fires, and during low RPM situations can cause stalling.
The Blow-Thru boost tube relocates the BOV fitting before the MAF sensor, so none of these issues will affect the sensor, or how the car runs between shifts. It’s a simple answer to peoples needs for a VTA BOV!
CLEANER Intake path
Now that the MAF sensor is in the boost tube, the intake path for the turbo is much less restrictive. You could literally remove your intake from the turbo and it would still run! Included with the kit is an aluminum coupler to replace the MAF sensor now in the boost tube. This allows for great freedom with how and what intake system you can run. Again this small feature is another way you will gain more power!
Includes: Polished or Red powdercoated Aluminum Tube, Instructions and hardware
Compatibility Note: Fits all WRX and STi models using our PSP-ENG-400 Intercoolers produced after 6/2005
PERRIN Front Mount Intercooler users can now get a more accurate charge temperature reading and run a VTA BOV with no problems! Instead of measuring the Mass Air Flow (MAF) and air temperature before the turbocharger, the PERRIN PerformanceTM Blow-Thru boost tube moves the mass airflow sensor to the boost tube before the throttle body. The placement of this does many good things like allowing your ECU to read the actual charge temp the engine sees, which eliminates any need for a Cold air intake (MORE IN FEATURES). Also use our Vent to Atmosphere (VTA) Blow off valve with out running rich between shifts, or with out idle problems. (see ASM-INT-600)
The Blow-Thru boost tube also is designed with the BigMAF Intake in mind. Tuners around the world are familiar with this larger than stock MAF housing. This allows for the stock ECU to read more air flow, in turn allowing the tuner to tune beyond 550WHP! This also means the Blow-Thru boost tube needs to be tuned after installed. This part will not function correctly when installed on a stock tuned ECU.
WHAT IS THE BLOW-THRU BOOST TUBE?
The Blow-Thru Boost Tube is a replacement of the large 2.75” tube in the PERRIN FMIC kit that relocates the MAF sensor into the boost tube. The way the MAF sensor works is very simple, and it doesn’t care, or know, if it is under boost or vacuum. This means the sensor can placed in the boost system, or in the intake system, and function normally.
Why do I want this?
LEAKS ARE A PROBLEM OF THE PAST
The MAF sensor is normally located in the intake system before the turbo. In this situation, the turbo sucks in air, compresses it through the boost tubes, and into the engine. If there is leak in the intake system before the turbo (vacuum hose disconnected), it will cause the car to run lean and throw a CEL. If there is leak in the boost system after the turbo (boost hose loose, or popped off), it will cause the car to run rich and throw a CEL. Both situations are dangerous as they can cause sever engine damage.
With the MAF sensor located in the boost tube a short distance before the throttle body, any possible leak in the intake system will never be a problem. And being so close to the throttle body, most possible leaks in the boost system are not going to be a problem either. Also if you have ever had a boost tube blow off and leave you stranded, that is a thing of the past!
NO COLD AIR INTAKE
No more need for a cold air intake! The MAF sensor not only has the airflow sensor in it, but the air temp sensor is also located in it. With the MAF sensor/air temp sensor in the engine bay, it can read the high temps when your car is sitting still. Once you get going down the road, the temps drop significantly, but while waiting for your turn at the drag strip, or at a stoplight, the ECU sees these high temps. The ECU can then pull timing, and do other things that will hurt performance.
A short ram style intake doesn’t loose power because the high temps that get into the engine, but rather from the high temps the ECU sees. At a stoplight, the high intake temps go through the intake, turbo, boost tubes, and intercooler before reaching the engine. The actual temp the engine sees is nowhere near this temp. So the ECU is pulling timing and changing fueling for no reason, as the engine doesn’t see these high temps. With the Blow-Thru Boost tube this all goes away! Since it is mounted just before the throttle body, it will read the air temp the engine sees, and will make for more consistent tuning, driving, and power!
NO TURBULANCE
Another issue with Short ram intakes is that the MAF sensor is very sensitive, and things like fans turning on, and Blow Off Valves venting can change the readings of the sensor. This causes the car to run erratically in idle and cruise situations. With the Blow-Thru boost tube, the sensor is located in a nice smooth straight path of the charge air, which makes for consistent airflow. Again making the drivability smoother, and more power!
BIG MAF SIZE
The Blow-Thru Boost tube is designed using the BigMAF in mind. Since most every car looking at something like this has an upgraded turbo, we decided to size the Blow-Thru boost tube the same as our BigMAF intake systems. The BigMAF intake system is designed with a larger MAF housing than stock. This allows the ECU to read more air entering the engine, and allowing ECU mapping all the way to 550WHP+. This size is also chosen as many tuners have maps built for the BigMAF, and this makes for an easy transition from short ram to Blow-Thru. This also means the Blow-Thru boost tube needs to be tuned after installed. This part will not function correctly when installed on a stock tuned ECU.
VTA BOV Can be used!
One feature many people like is that a Vent to Atmosphere BOV can be used with out the issues associated with a normal intake. The BOV is normally located after the MAF sensor in the boost system, and vents the air back to the boost system after the MAF sensor. With a normal intake, it is important to keep the vented air (from the BOV) in the intake system after the MAF sensor, so the ECU can calculate the amount of air the engine is consuming. If you install a BOV that vents the air to the atmosphere, it is like a boost leak, and can cause the car to run rich. This happens because the air the ECU thought the engine was consuming didn’t get consumed and extra fuel is added. This causes back fires, and during low RPM situations can cause stalling.
The Blow-Thru boost tube relocates the BOV fitting before the MAF sensor, so none of these issues will affect the sensor, or how the car runs between shifts. It’s a simple answer to peoples needs for a VTA BOV!
CLEANER Intake path
Now that the MAF sensor is in the boost tube, the intake path for the turbo is much less restrictive. You could literally remove your intake from the turbo and it would still run! Included with the kit is an aluminum coupler to replace the MAF sensor now in the boost tube. This allows for great freedom with how and what intake system you can run. Again this small feature is another way you will gain more power!
Includes: Polished or Red powdercoated Aluminum Tube, Instructions and hardware
Compatibility Note: Fits all WRX and STi models using our PSP-ENG-400 Intercoolers produced after 6/2005
Okay, word association time -- what comes to mind when you think of the word "Oregon?" Maybe trees, or the people who hug them? Possibly, but if you're a speed freak like us, you probably think more along the lines of "Rally America" and "Perrin Performance." Perrin, a part of the Alta Performance Group, began manufacturing specialized aftermarket parts more than a decade ago. They cater especially to high-power sport compact cars, including Subarus, Evos, and more. Perrin has the heavy-hitters of Japanese all-wheel drive performance covered with parts that are built in the U.S., and just as importantly, built to last. With the full line of Perrin Performance products available, Andy's Auto Sport is here to help turn your car into a beast!
Q: Why buy a mass air flow sensor?
A: Aftermarket mass air flow sensors improve horsepower and torque. Replacing your restrictive stock air flow meter with an aftermarket mass air flow sensor meter gives immediate acceleration gains.
A: Aftermarket mass air flow sensors improve horsepower and torque. Replacing your restrictive stock air flow meter with an aftermarket mass air flow sensor meter gives immediate acceleration gains.
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