Exhaust System From headers to exhaust tips

best exhaust for MPG

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Old Mar 7, 2007 | 10:24 AM
  #1  
smithtim's Avatar
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From: Daytona Beach
best exhaust for MPG

so I tried searching but couldn't find anything saying explicityl about the V6.. but search was acting up

anyways just did a valve job on a 97 V6 3.8 fbird with 145K.. hoping to keep it as a commuter and I want to get the best gas mailage possible as I drive way to much on the interstate... so want to get best flow through to help that; thinking about K&N FPI on the intake as I've heard good things but not sure what would be best to replace the stock exahust

any suggesitons please? and any ideas about how mush it would improve the MPG - what do you think that fbirds really got left in her ?200K

thanks for looking

Tim


p.s. not sure if this should have gone in the V6 room but I figured exhaust question should go here??
Old Mar 7, 2007 | 01:10 PM
  #2  
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Start out with a good flowing catback. Then down the road work your way up to a set of headers. I did notice a decent increase in mpg's after installing an exhaust from front to back.
Old Mar 8, 2007 | 10:58 AM
  #3  
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was looking at the edelbrock for the catback and they have a kit for about $250 and I've always trusted them... but it's only a sinlge out.

Flowmaster makes a kit for about $400 that is a dual out... I think the dual will probbaly improve the flow some but do you think its worth the extra price (don't really care about how it looks cause it's just a commuter )

Last edited by smithtim; Mar 8, 2007 at 11:04 AM.
Old Mar 8, 2007 | 11:31 AM
  #4  
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I would also look into the Magnaflow, it has a decent sound, it is affordable, and it is all stainless steel so it will last you a long time. I used to have an Edelbrock catback, it had a very nice sound on the v8, not sure how it performs on the v6 though.
Old Mar 8, 2007 | 08:03 PM
  #5  
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i gained a consisstent 1-1.5mpg after installing a magnaflow catback with cutout (in place of stock exhaust on an LT1)

not sure you'll really gain that much on a v6

i would just slap a bullet muffler on the stock setup and be done with it for $50
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