Headers, Intake, & Exhaust Custom Exhaust? New Headers? Need Opinions on Intakes? Discuss making your ride breathe better here.

cat-back exhaust

  #1  
Old 01-15-2009, 12:49 PM
Member
Thread Starter
Join Date: Sep 2007
Posts: 34
Default cat-back exhaust

does anyone know if the 97 V6 exaust from the cat-back is the same and the 4 cyl. i know from the down pipe up is completely different but i was wondering from the downpipe and back.
 
  #2  
Old 01-15-2009, 07:30 PM
Super Moderator
Join Date: Jan 2008
Location: PTW
Posts: 11,742
Default RE: cat-back exhaust

Check online auto parts sites such as Rockauto and compare part numbers between engine types.


 
  #3  
Old 01-16-2009, 09:51 AM
Member
Thread Starter
Join Date: Sep 2007
Posts: 34
Default RE: cat-back exhaust

i was just wondering if they are close in dimension. and if anyone knows how to diagnose my car. i know it is running really rich by me MPG and by my exhaust fumes but i cant pin point a problem. my engine still runs fine.
 
  #4  
Old 01-16-2009, 07:14 PM
Super Moderator
Join Date: Jan 2008
Location: PTW
Posts: 11,742
Default RE: cat-back exhaust

Is the Check Engine Light on?

Have you checked the air filter, plugs, etc?

The 4 and 6 cylinder exhaust sysems have differant parts number thus assume are not the same.


 
  #5  
Old 01-16-2009, 09:21 PM
Member
Thread Starter
Join Date: Sep 2007
Posts: 34
Default RE: cat-back exhaust

no, but i do have a header on and that got rid of the cat. i dont know if that is ther reason because i was getting pretty bad MPG before the header and it hasn't changed. but i dont see why i wouldn't have my check engine light on because if the post-cat O2 sensor. i did a tune up about 1000 miles ago, air filter is still good.
 
  #6  
Old 01-16-2009, 10:39 PM
Super Moderator
Join Date: Jan 2008
Location: PTW
Posts: 11,742
Default RE: cat-back exhaust

What is the MPG?

Sluggish O2 sensors can cause a drop in MPG. Sometimes the placement of the sensor on a header can cause problems.

How is the PCV valve?
 
  #7  
Old 01-16-2009, 11:52 PM
Member
Thread Starter
Join Date: Sep 2007
Posts: 34
Default RE: cat-back exhaust

pcv is good. right now it is about 15mpg. ya i know. it sucks for a 4cyl. but i dont understand how it could be running so rich but no miss-fire or any performance problems. the new placement on the header is just a tad bit higher than stock
 
  #8  
Old 01-17-2009, 11:31 AM
Super Moderator
Join Date: Jan 2008
Location: PTW
Posts: 11,742
Default RE: cat-back exhaust

Typically running lean or ign problems cause misfire.

How is the throttle body, clean? Spark plugs and wires OK?

Sluggish 02 sensors can cause reduced MPG.

If haven't done so, do a tune up.

Suggest you pickup a Haynes shop manual that contains info on testing the various sensors and other devices.

 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
rkimes11
Headers, Intake, & Exhaust
0
03-10-2009 02:40 PM
Nightrider
Headers, Intake, & Exhaust
4
08-23-2008 12:25 PM
BrandonBrutality
Headers, Intake, & Exhaust
1
08-19-2008 08:50 AM
ronbob101
Headers, Intake, & Exhaust
2
05-27-2008 08:26 PM
94camguy
Headers, Intake, & Exhaust
3
03-31-2008 08:15 AM


Thread Tools
Search this Thread
Quick Reply: cat-back exhaust


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.