Looking for muffler suggestions!

[maxrevs85]

Did you notice any difference in loudness?

 

[Stommer]

Dave, My vette just rumbles! Like a vette should.Not loud at all. Real nice note. _John :cool

 

[Full Bull]

stommer...help those of us mechanically disinclined! What exactly is gutting, how do you do it, and what changes to the car (O2 sensors, for example) have to be done, if any. Thanks

 

[Stommer]

Guttin`the cats

Hey Newbie, First get your vette on a lift.Remove both cats from the exhaust maniold.Get the cats on the ground.Make sure the exhaust is cool! Find yourself a stick of somesort about the size of a broom handle.You'll see inside the cats a honeycomb like substance. That I believe is called platinum cataylst. You need to break all that up and remove it from the converters Reinstall.No other changes need be made.O2 sensor ect. Hope I helped.

 

[Full Bull]

Thx....will give a whirl this weekend!

 

[fastglass95]

Don't try this on a 96, OBDII is a differnt animal
they have a second o2 sensor located AFTER the cat to make sure it is performing right.

Also note: It's a violation of Fedral Law to tamper with a properly functioning emissions control device

But,......For off-road use, it's perfectly acceptable.

Be you own judge!

 

[Full Bull]

http://www.phy.duke.edu/~hartley/iroc/results.html

Check out this exhaust survey done by some IROC drivers...interesting comments on a variety of systems.