How to replace the exhaust pipe on a 3.6L engine on Buick LaCrosse?

The first step to replace the exhaust crossover pipe for a 3.6l engine requires removal of the left inner fender brace alongside the air cleaner assembly and left and right front engine mount struts and Throttle Body. Tie down straps should be used to maintain engine position when it is rotated forward to its maximum extent. The next procedure requires removing downpipe attaching nuts before taking off both left bank and front right bank crossover pipe nuts. Raising the vehicle becomes necessary alongside wheel and fender splash shield removal of the left front tire. Then proceed with the left fender splash shield removal. Release the intermediate shaft bolt to disjoin its connection between steering gear and left fail rail with a proper jack stand positioning which should not impact right side frame to body bolts. To begin the procedure install a jack stand under the frame after unbolt the left two frame to body connectors and then lower the frame before removing the fourth exhaust crossover pipe nut. The process starts with vehicle lowering and removal of the transmission fluid filler tube prior to crossover pipe extraction. The first step for installation requires installing the crossover pipe followed by cross nut application which needs to be tightened up to 34 n.m (25 lb ft). Begin by installing the transmission fluid filler tube followed by raising and supporting the vehicle under a jack stand to raise the frame. Finally install the left two frame bolts and remove the jack stand. Follow the sequence of reuniting the steering gear with the intermediate shaft and installing the left front tire and wheel afterward. Reattach the left inner fender splash shield as well. The crossover pipe nuts for both left bank sections and front right bank together with downpipe connecting nuts should be installed at this time. Move the tie down straps from the engine before putting the engine into position again while setting the left and right front engine mount struts in place with the Throttle Body and air cleaner assembly containing the left inner fender brace.

OEM Buick LaCrosse Exhaust Pipe

Exhaust Tail Pipe

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26 Exhaust Pipes found

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Buick LaCrosse Muffler & Pipe Part Number: 15894106
$918.28 MSRP: $1379.08
You Save: $460.80 (34%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Muffler, Exhaust; Exhaust Pipe; Muffler
- Replaced by: 19434064
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2008 Buick LaCrosse | CXS | 6 Cyl 3.6 L GAS
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Buick LaCrosse Front Pipe Part Number: 84512274
$662.67 MSRP: $995.00
You Save: $332.33 (34%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pipe, Exhaust Pipe
- Replaces: 84233241
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2019 Buick LaCrosse | Avenir, Essence, Preferred, Premium, Sport Touring | 6 Cyl 3.6 L GAS
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Buick LaCrosse Exhaust Pipe Part Number: 84512275
$801.84 MSRP: $1236.46
You Save: $434.62 (36%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pipe, Exhaust Pipe; Front Pipe
- Replaces: 84262664
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2019 Buick LaCrosse | Avenir, Essence, Preferred, Premium, Sport Touring | 6 Cyl 3.6 L GAS
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Buick LaCrosse Catalytic Converter Part Number: 19419593
$797.25 MSRP: $1189.82
You Save: $392.57 (33%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/Exhaust Front Manifold Pipe) "Kit"; Exhaust Manifold; Preconverter; Converter, Catalytic Converter
- Replaces: 20965402
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2012-2016 Buick LaCrosse | Base, Convenience, Leather, Premium, Sport Touring, Touring | 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
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Buick LaCrosse Converter & Pipe, Rear Part Number: 19418933
$995.51 MSRP: $1488.85
You Save: $493.34 (34%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/Exhaust Rear Manifold Pipe) "Kit"; Converter, Catalytic Converter
- Position: Rear
- Replaces: 20893999, 20907414, 20805599
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010 Buick LaCrosse | CX, CXL | 6 Cyl 3.0 L GAS
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Buick LaCrosse Crossover Pipe Part Number: 12569055
$194.20 MSRP: $290.34
You Save: $96.14 (34%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pipe, Exhaust Pipe; Cross Over Pipe; Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2009 Buick LaCrosse | Super | 8 Cyl 5.3 L GAS
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Buick LaCrosse Crossover Pipe Part Number: 12597679
$342.22 MSRP: $511.64
You Save: $169.42 (34%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pipe, Exhaust Pipe; Cross Over Pipe; Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2009 Buick LaCrosse | CX, CXL | 6 Cyl 3.8 L GAS
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Buick LaCrosse Front Pipe Part Number: 84325056
$159.23 MSRP: $238.06
You Save: $78.83 (34%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pipe, Exhaust Pipe; Exhaust Pipe
- Position: Front
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2019 Buick LaCrosse | Base, Essence, Preferred, Premium | 4 Cyl 2.5 L MILD HYBRID EV-GAS (MHEV)
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Buick LaCrosse Cross Over Part Number: 24503125
$437.51 MSRP: $654.11
You Save: $216.60 (34%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pipe, Exhaust Pipe; Crossover Pipe; Front Pipe; Cross Over Pipe; Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2009 Buick LaCrosse | CX, CXL | 6 Cyl 3.8 L GAS
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Buick LaCrosse Front Pipe Part Number: 22935310
$1140.90 MSRP: $1708.15
You Save: $567.25 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pipe, Exhaust Pipe; Exhaust Pipe
- Position: Front
- Replaces: 22737850
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2013-2016 Buick LaCrosse | Base, Leather, Premium, Sport Touring, Touring | 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
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Buick LaCrosse Catalytic Converter, Rear Part Number: 19418940
$1289.00 MSRP: $2004.07
You Save: $715.07 (36%)
ADD TO CART
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/Exhaust Rear Manifold Pipe) "Kit"; Converter & Pipe; Converter; Preconverter; Converter, Catalytic Converter
- Position: Rear
- Replaces: 22794842, 25886008, 20931546
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2016 Buick LaCrosse | Base, Convenience, CX, CXL, Leather, Premium | 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV)
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Buick LaCrosse Front Pipe Part Number: 22935311
$1231.22 MSRP: $1913.64
You Save: $682.42 (36%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pipe, Exhaust Pipe; Exhaust Pipe
- Position: Front
- Replaces: 22737851
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2013-2016 Buick LaCrosse | Base, Leather, Premium, Sport Touring, Touring | 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
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Buick LaCrosse Front Pipe Part Number: 22935121
$963.73 MSRP: $1440.92
You Save: $477.19 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pipe, Exhaust Pipe; Exhaust Pipe
- Position: Front
- Replaces: 13229529, 20960849, 20912670, 20973114
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2011-2016 Buick LaCrosse | Base, Convenience, CX, CXL, Leather, Premium | 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV)
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Buick LaCrosse Exhaust Pipe Part Number: 84233240
$801.84 MSRP: $1236.46
You Save: $434.62 (36%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pipe, Exhaust Pipe; Front Pipe
- Position: Front
- Replaced by: 84512275
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018 Buick LaCrosse | Avenir, Premium | 6 Cyl 3.6 L GAS
View related parts
Buick LaCrosse Crossover Pipe Part Number: 15218551
Product Specifications
- Other Name: Pipe-Exhaust Manifold; Exhaust Pipe; Cross Over Pipe; Pipe, Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2008 Buick LaCrosse | CXS | 6 Cyl 3.6 L GAS
View related parts
Buick LaCrosse Muffler & Pipe Part Number: 15894108
Product Specifications
- Other Name: Muffler, Exhaust; Direct-Fit Exhaust; Exhaust System Kit; Exhaust Pipe; Muffler
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2009 Buick LaCrosse | CX, CXL | 6 Cyl 3.8 L GAS
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Buick LaCrosse Muffler & Pipe Part Number: 25808149
Product Specifications
- Other Name: Muffler, Exhaust; Exhaust Pipe; Muffler
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2009 Buick LaCrosse | Super | 8 Cyl 5.3 L GAS
View related parts
Buick LaCrosse Catalytic Converter, Rear Part Number: 19418936
$757.65 MSRP: $1125.00
You Save: $367.35 (33%)
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/Exhaust Rear Manifold Pipe) "Kit"; Converter & Pipe; Converter, Catalytic Converter
- Position: Rear
- Replaces: 20907468, 20893984, 25798282
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2011 Buick LaCrosse | CX, CXL, CXS | 6 Cyl 3.6 L GAS
View related parts
Buick LaCrosse Front Pipe Part Number: 19420103
$644.79 MSRP: $965.00
You Save: $320.21 (34%)
Product Specifications
- Other Name: Pipe Assembly, Exhaust Front "Kit"; Exhaust Pipe; Pipe, Exhaust Pipe
- Replaces: 13229534, 13268587, 20960841, 22935316, 20907476
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2012 Buick LaCrosse | Base, Convenience, CX, CXL, CXS, Leather, Premium, Touring | 6 Cyl 3.0 L GAS, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
View related parts
Buick LaCrosse Front Pipe Part Number: 84262663
$851.56 MSRP: $1278.62
You Save: $427.06 (34%)
Ships in 1-3 Business Days
Product Specifications
- Other Name: Pipe, Exhaust Pipe; Exhaust Pipe
- Position: Front
- Replaces: 84043291, 84233239
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2017 Buick LaCrosse | Base, Essence, Preferred, Premium | 6 Cyl 3.6 L GAS

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Buick LaCrosse Exhaust Pipe

Want to cut long-term maintenance and repair costs? Choose OEM Exhaust Pipe. Those parts deliver top durability you can trust. On our site, you'll find a huge catalog of genuine Buick LaCrosse parts. Prices are unbeatable, so you can keep more in your pocket. Every OEM Buick LaCrosse Exhaust Pipe includes a manufacturer's warranty. You can also get an easy return policy that keeps buying risk free. Fast delivery, get your car on the road quickly. It's simple to search, compare, and order. Stop guessing about quality or fit. Order today and save with parts that last.

The Buick LaCrosse Exhaust Pipe is a precise part that speaks volume on the reliability and performance of the car in question. Serving the important function of removing hazardous fumes from the engine properly and replacing the cabin air, the exhaust pipe is an essential component. Positioned mainly on the side that is opposite to the kerb, its positioning guarantees functionality and easy coupling with the other vital parts such as mufflers and catalytic converters. Buick LaCrosse has experienced the successive models since its model year 2004; each of them is fit to particular types of exhaust pipes for a betterment of the car. Damages arising from corrosion, wearing down of the exhaust pipe require regular maintenance since the rattling, vibration, and exhaust leaks are fatal to the performance of the vehicle and may be hazardous to life. Buick LaCrosse is one of the models that favors the automotive market due to the emerge, for example, eAssist hybrid system, which contributes to lower fuel utilization, as well as quality and durability. While the second generation of the car targets improvements in the powertrains and places more concern on weight issues, the Buick LaCrosse remains to capture the interest of the younger generation, and all through, the car exhaust pipe keeps its look and operation a reality. Altogether, Buick LaCrosse Exhaust Pipe is crucial in improving the performance of the vehicle, safety of the car, and overall experience of driving thus its importance in the market competition.

Buick LaCrosse Exhaust Pipe Parts and Q&A

Muffler & Pipe
15894106
Q: How to replace the exhaust pipe on a 3.6L engine on Buick LaCrosse?
A:
The first step to replace the exhaust crossover pipe for a 3.6l engine requires removal of the left inner fender brace alongside the air cleaner assembly and left and right front engine mount struts and Throttle Body. Tie down straps should be used to maintain engine position when it is rotated forward to its maximum extent. The next procedure requires removing downpipe attaching nuts before taking off both left bank and front right bank crossover pipe nuts. Raising the vehicle becomes necessary alongside wheel and fender splash shield removal of the left front tire. Then proceed with the left fender splash shield removal. Release the intermediate shaft bolt to disjoin its connection between steering gear and left fail rail with a proper jack stand positioning which should not impact right side frame to body bolts. To begin the procedure install a jack stand under the frame after unbolt the left two frame to body connectors and then lower the frame before removing the fourth exhaust crossover pipe nut. The process starts with vehicle lowering and removal of the transmission fluid filler tube prior to crossover pipe extraction. The first step for installation requires installing the crossover pipe followed by cross nut application which needs to be tightened up to 34 n.m (25 lb ft). Begin by installing the transmission fluid filler tube followed by raising and supporting the vehicle under a jack stand to raise the frame. Finally install the left two frame bolts and remove the jack stand. Follow the sequence of reuniting the steering gear with the intermediate shaft and installing the left front tire and wheel afterward. Reattach the left inner fender splash shield as well. The crossover pipe nuts for both left bank sections and front right bank together with downpipe connecting nuts should be installed at this time. Move the tie down straps from the engine before putting the engine into position again while setting the left and right front engine mount struts in place with the Throttle Body and air cleaner assembly containing the left inner fender brace.