Why does my 2003 Pontiac Sunfire have a cat-back that y's into two mufflers? Can it be replaced with a single muffler and cat-back without effecting exaust flow from motor?

75

Asked by Dec 31, 2013 at 01:52 AM about the 2003 Pontiac Sunfire

Question type: Maintenance & Repair

My manifold has only one pipe coming out so i do not see the logic in two mufflers unless it is purely for looks and added expense to replace

2 Answers

58,735

My 2000 Grand Prix is the same. Probably just for looks. To make it seem sportier. As long as the downstream oxygen sensor is left in position I see no reason why you couldn't. Although the cost of custom bending the new exhaust pipe might be the same or close to the cost of replacing the exhaust with the "dual" set up. HTH. - Jim

1 out of 1 people think this is helpful.
4,405

There isn't room under the car for a single muffler that will create the sound/performance the car needs to run as well as it can. You can get stock or performance pipe replacements online. A single exhaust and single muffler will work, but you might not be happy with the sound or performance.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Search Pontiac Sunfire Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Pontiac Sunfire Experts

#1 John Saffrahn
John Saffrahn
Reputation 2,540
#2 Joeyadams
Joeyadams
Reputation 1,300
#3 Warren0007
Warren0007
Reputation 1,200
View All

Related Models For Sale

Used Chevrolet Cavalier
1,323 listings starting at $1,995
Used Pontiac Grand Am
1,699 listings starting at $1,000
Used Pontiac Grand Prix
19 Great Deals out of 3,814 listings starting at $900
Used Ford F-150
3,218 Great Deals out of 205,090 listings starting at $1,779
Used Pontiac Firebird
18 Great Deals out of 808 listings starting at $3,000
Used Toyota Corolla
1,081 Great Deals out of 64,184 listings starting at $1,595
Used Honda Accord
1,084 Great Deals out of 76,808 listings starting at $1,395
Used Pontiac Bonneville
8 Great Deals out of 669 listings starting at $995
Used Honda Civic
937 Great Deals out of 68,324 listings starting at $1,500
Used Ford Mustang
583 Great Deals out of 41,215 listings starting at $1,699
Used Chevrolet Impala
935 Great Deals out of 35,463 listings starting at $1,995
Used Chevrolet Camaro
475 Great Deals out of 39,921 listings starting at $3,499

Used Cars For Sale

2005 Pontiac Sunfire For Sale
104 listings starting at $1,500