How to remove the exhaust manifold on Subaru Impreza?

Start by disconnecting the cable from the negative terminal of the battery in order to remove the exhaust manifold. Next, jack up the vehicle and make sure it is securely supported on jackstands. Take off engine splash shields and separate front as well as rear oxygen sensor connectors. Remove heat shields from non-turbocharged models' exhaust pipes and manifold, then remove both cylinder head nuts from exhaust manifold and bolts from exhaust manifold joint on straight six side. On turbocharged models, take off heat shields, then separate right side joint pipe fasteners between turbocharger and manifolds, as well as nuts that attach both cylinder heads to exhaust manifolds. Lastly get rid of the exhaust manifold itself. To install new ones, clean the mating surfaces of each cylinder head, manifold or manifolds and exhaust pipe(s), making sure they are flat without any damages. Put new gaskets on; put a manifold onto cylinder heads; and then tighten down bolts evenly. Afterward attach center pipe or turbocharger joint pipe to this manifold while tightening up all nuts equally connected thereunder. Finally reinstall everything following reverse steps involved in taking it apart but remember to reconnect battery first before testing for proper ventilation once again when turning engine on.

Genuine Subaru Impreza Exhaust Manifold

Engine Exhaust Manifold

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7 Exhaust Manifolds found

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Subaru Impreza Manifold Exhaust RH
Part Number: 14010AA102
$346.11 MSRP: $510.48
You Save: $164.37 (33%)
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Product Specifications
- Other Name: Manifold-Exhust,Rh; Exhaust Manifold
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2008-2011 Subaru Impreza | 2.5 GT, WRX, WRX Sport, WRXSS | 2.5L H4 Turbo
- 2002-2005 Subaru Impreza | WRX | 2.0L H4 Turbo
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Subaru Impreza Manifold Exhaust LH
Part Number: 14023AA101
$181.73 MSRP: $265.68
You Save: $83.95 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Manifold-Exhust,Lh; Exhaust Manifold
- Position: Driver Side
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2004-2011 Subaru Impreza | STI, STI Limited, STI Special Edition, STI Sport | 2.5L H4 Turbo
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Subaru Impreza Manifold Exhaust RH
Part Number: 14010AA131
$392.00 MSRP: $578.17
You Save: $186.17 (33%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Manifold-Exhust,Rh; Exhaust Manifold
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2004-2007 Subaru Impreza | STI, STI Limited | 2.5L H4 Turbo
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Subaru Impreza Manifold Exhaust LH
Part Number: 14023AA020
$335.98 MSRP: $495.55
You Save: $159.57 (33%)
Product Specifications
- Other Name: Manifold-Exhust,Lh; Exhaust Manifold
- Position: Driver Side
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2008-2011 Subaru Impreza | 2.5 GT, WRX, WRX Sport, WRXSS | 2.5L H4 Turbo
- 2002-2005 Subaru Impreza | WRX | 2.0L H4 Turbo
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Subaru Impreza Manifold Exhaust RH
Part Number: 14010AA111
$388.25 MSRP: $572.63
You Save: $184.38 (33%)
Product Specifications
- Other Name: Manifold-Exhust,Rh; Exhaust Manifold
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2006-2007 Subaru Impreza | WRX, WRX TR | 2.5L H4 Turbo
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Subaru Impreza Manifold Exhaust RH
Part Number: 14010AA160
$296.48 MSRP: $437.28
You Save: $140.80 (33%)
Product Specifications
- Other Name: Manifold-Exhust,Rh; Exhaust Manifold
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2008-2011 Subaru Impreza | STI, STI Special Edition, STI Sport | 2.5L H4 Turbo
View related parts
Subaru Impreza Manifold Exhaust LH
Part Number: 14023AA090
Product Specifications
- Other Name: Manifold-Exhust,Lh; Exhaust Manifold
- Position: Driver Side
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2006-2007 Subaru Impreza | WRX, WRX TR | 2.5L H4 Turbo

Subaru Impreza Exhaust Manifold

The Exhaust Manifold of the Subaru Impreza collects the hot gas expelled from each cylinder and funnels it into a single outlet that feeds the exhaust system. The Exhaust Manifold bolted to the cylinder head and sealed with gaskets experiences repeated heating and cooling while directing the flow to the catalytic converter, muffler, and tailpipe. The majority of the Subaru Impreza versions provided are made of cast iron for durability, although it may also be present as welded steel or stainless-steel tubing, all of which mount onto a flange on the head. In order to control the heat, certain units come with shields on the Subaru Impreza. This helps shield against nearby parts and restricts the temperature of the cabin from getting raised. In certain applications, the Exhaust Manifold even serves the function of housing the catalytic converter or providing a port that accommodates an oxygen sensor reporting the exhaust oxygen content to the engine control module. The Exhaust Manifold keeps the Subaru Impreza running smoothly by maintaining a clear path and preventing reversion of intake. It also prevents harmful gases from entering the occupant area. However, due to thermal stress, cracks may develop requiring replacement of the Exhaust Manifold.

Our website stands as the go-to online destination for OEM Subaru Impreza Exhaust Manifold. With complete lines of genuine Subaru Impreza Exhaust Manifold available at unbeatable market prices, we ensure top quality, reliability, and durability. Each part comes backed by the manufacturer's warranty, reinforcing your trust in our offerings.

Subaru Impreza Exhaust Manifold Parts Questions & Experts Answers

Manifold Exhaust RH
14010AA102
Q:
How to remove the exhaust manifold on Subaru Impreza?
Posted by John F.
A:
Start by disconnecting the cable from the negative terminal of the battery in order to remove the exhaust manifold. Next, jack up the vehicle and make sure it is securely supported on jackstands. Take off engine splash shields and separate front as well as rear oxygen sensor connectors. Remove heat shields from non-turbocharged models' exhaust pipes and manifold, then remove both cylinder head nuts from exhaust manifold and bolts from exhaust manifold joint on straight six side. On turbocharged models, take off heat shields, then separate right side joint pipe fasteners between turbocharger and manifolds, as well as nuts that attach both cylinder heads to exhaust manifolds. Lastly get rid of the exhaust manifold itself. To install new ones, clean the mating surfaces of each cylinder head, manifold or manifolds and exhaust pipe(s), making sure they are flat without any damages. Put new gaskets on; put a manifold onto cylinder heads; and then tighten down bolts evenly. Afterward attach center pipe or turbocharger joint pipe to this manifold while tightening up all nuts equally connected thereunder. Finally reinstall everything following reverse steps involved in taking it apart but remember to reconnect battery first before testing for proper ventilation once again when turning engine on.
Answered by Subaru Parts Specialist William / Jul 24, 2024