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Upgrade Paths for supported vehicles

mechanical changes to fit Staged requirements

Subaru

most years and models of supported vehicles

Cobb Accessport

The Cobb Accessport is the world’s best-selling, most flexible, and easiest to use ECU upgrade solution for your vehicle. Even in stock form your vehicle has some hidden power left on the table, not only that but Cobb has gone above and beyond that and expanded the ability of the stock ecu on most applications adding special features like Launch Control, Flat Foot Shifting, Speed Density Tuning, Flex Fuel Tuning, and Fuel Pressure Differential Tuning. This is the first step in any upgrade path of every car we do here at Surgeline.

Boost Creep

Boost Creep is when the wastegate is not able to divert enough exhaust gas away from going through the turbo to adequately control boost to the desired level. Unfortunately, we experience this often in the Pacific Northwest.

More on Boost Creep

Your computer in its most basic form does 3 things to protect itself in the event that it determines appropriate.

  1. Reduce timing
  2. Add fuel
  3. Reduce the amount of boost

When you exhibit signs of boost creep you are taking one-third of the ECU’s ability to protect the engine and typically maxing out your factory fuel system. Even though you can add larger injectors and fuel pump to satisfy the fuel requirements, you will not be able to eliminate/control boost creep until you address the exhaust flow issue.

At this point in the upgrade path we always recommend 1 of 2 actions be taken, depending on your future goals. The factory turbo can be removed and the exhaust housing separated from the turbo assembly. From there we can port the exhaust housing specifically leading up to and around the factory internal wastegate port. This allows the internal wastegate to flow enough exhaust gas away from the turbocharger itself and bring the boost levels back into a controllable area. The other option and much more popular option is going to an external wastegate setup. While this is a more expensive route to go, it is more desirable because it has far better boost control ability than any internal wastegate setup, and it is not solely for 1 turbo. If you choose to upgrade your turbo later down the road, you can still use your external wastegate with that turbo. If you choose the path of porting your stock turbo then if you ever upgrade your turbo, the money you spent on the stock one is lost since you can not move the port work to the upgraded unit.

Stage One

Stage 1 is an otherwise stock vehicle that has a stock or aftermarket drop in filter, and some form of tune on the ECU. The Cobb OTS (off the shelf) mapping or custom dyno tune can be done on your Cobb AP.

Stage One +

Stage 1+ is an otherwise stock vehicle that has an aftermarket intake kit installed on the vehicle. Depending on what brand of intake you have will dictate if a custom tune is required, as not all intakes are supported by Cobb’s OTS (off the shelf) mapping. Contact one of our Performance Advisors to see if you would need a custom tune or not based on the intake system you have in mind.

Stage Two

Stage 2 is the combination of an aftermarket Downpipe, stock or aftermarket Cat Back Exhaust, and some form of tune on the ECU. If planning on using one of Cobb’s OTS (off the shelf) maps, you will need to ensure you are using Cobb’s catted aftermarket downpipe. If you choose to use anything other then the recommended Cobb catted downpipe, a custom dyno tune would be in order.

Stage Two +

(**Must have addressed boost creep prior to going full Stage 2+ or further**)
Stage 2+ the same as Stage 2 except is utilizes an aftermarket Intake kit. Depending on what brand of intake you have will dictate if a custom tune is required, as not all intakes are supported by Cobb’s OTS (off the shelf) mapping. Contact one of our Performance Advisors to see if you would need a custom tune or not based on the intake system you have in mind.

Stage Three

(**Must have addressed boost creep prior to going full Stage 2+ or further**)
Stage 3 is for vehicles that have an aftermarket intake, aftermarket catted Turbo Back Exaust system, upgraded fuel injectors, upgraded fuel pump, and stock or upgraded intercooler. Depending on what brand of intake or Down Pipe you have will dictate if a custom tune is required, as not all intakes are supported by Cobb’s OTS (off the shelf) mapping. Contact one of our Performance Advisors to see if you would need a custom tune or not based on the intake system you have in mind.

Custom

Beyond these staged packages would require a custom designed build plan to accommodate your specific goals. Contact one of our Performance Advisors to talk about what path is best for you.

Ford

most years and models of supported vehicles

Cobb Accessport

The Cobb Accessport is the world’s best-selling, most flexible, and easiest to use ECU upgrade solution for your vehicle. Even in stock form your vehicle has some hidden power left on the table, not only that but Cobb has gone above and beyond that and expanded the ability of the stock ecu on most applications adding special features like Launch Control, Flat Foot Shifting, Speed Density Tuning, Flex Fuel Tuning, and Fuel Pressure Differential Tuning. This is the first step in any upgrade path of every car we do here at Surgeline.

Stage One

Stage 1 is an otherwise stock vehicle that has a stock or aftermarket drop in filter, and some form of tune on the ECU. The Cobb OTS (off the shelf) mapping or custom dyno tune can be done on your Cobb AP.

Stage Two

Stage 2 is an aftermarket intake kit, an upgraded front mount intercooler, and some form of tune on the ECU. The Cobb OTS (off the shelf) mapping or custom dyno tune can be done on your Cobb AP.

Stage three

Stage 3 is the same as Stage 2 except it adds in a full Turbo Back Exhaust system, and some form of tune on the ECU. The Cobb OTS (off the shelf) mapping or custom dyno tune can be done on your Cobb AP.

custom

Beyond these staged packages would require a custom designed build plan to accommodate your specific goals. Contact one of our Performance Advisors to talk about what path is best for you.

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