Who the **** is Evan Fischer?

[Scotty_h]

So 've just done this motor swap and inherited a newer Evan Fischer exhaust system on my 200K 3.4 99'. I know the motor I just put in is good, just geared it, but dang, my 300K motor with stock exhaust felt like it had TONS more in the midrange (2000 rpm+)

The only thing I can blame it on is this fart can noise coming from the cats as i go through my power band. :help:

My question after searching, is what kind of parts are these? (i see them for sale at JC Whitney) could this be choking back my power?.. and lastly, do i need to junk all the way to the headers to get this fixed?

Thanks guys,

 

[t4r4life]

no back pressure, sounds ricer, i would just swap it with a oem replacement and call it good.

 

[THatfield]

it's Doug Thorley's dumb a-- step brother

 

[JBurt]

How come you can't run your old stock exhaust? Are they different?

You could try pulling the the o2 sensors one at a time and see if that helps. I guess it's possible the cat is clogged.