Ok so my friends and I got to talking and decided it would be fun to make a cat delete system for a 2001 Lightning "for the strip, on a truck with more the 50,000/mi". I was wondering if anyone knows if there is a company that makes one and if so what the results were when installed. It would have to be something that was flanged so it would easy to change back to stock. Also if anyone wanted to lay down some pro's and con's of running no cats on a 450+hp lighting that would be much appreciated.

 

It would be super easy to do. The passenger side pipe is nearly a straight shot with a kick up to the manifold. The driver's side has two 90s in it plus the kick up to the manifold. Weld some ball and socket connectors (Summit sells a header collector ball flange kit as part #FLO-15924, as an example) between the pipe and the mufflers. Do the same on the normal catted mids and then it becomes a bolt in choice. Two bolts at each manifold, two bolts for each pipe, one hnager bolt at the crossmember, plus two O2 sensors. You'll need to turn off the rear O2s or live with the codes.

Just take the stockers off and have a muffler shop duplicate them in 2-1/2" pipe. They're do the work, but usually not on the vehicle.

Herb

 

how do i turn off the o2 sensors and if i do will i be able to turn them back on eventually to go and pass smog. california is a bastard about the stuff

 

So the way I understand it, it will be a real easy switch every time I want to go back to the stock right? Also how do I turn off the O2 sensors and if I do when I go back to stock will they come back and and still pass Smog? California is a bastard about that stuff.

Thanks,
Jon

 

With a handheld tuner, predator or xcal2.

 

Thanks man, and will I just use the same hand held to turn them back on when it is time to go do smog?

 

I wouldn't go as far as saying "real easy" as you are removing and replacing 1/3 of your exhaust each time, but it won't be rocket science. Especially if you fab-up a bolt together solution for the cat-back to mid-pipe interface.

Here's a pic of the Magnaflow High flow midpipe for comparison sake
http://photobucket.com/albums/f388/h...t=P3080003.jpg

The aluminumed areas are the cats. In your application these would be replaced with straight pipe.

Herb

 

thanks man, i'm gonna try it out later this week and see how it works out. i appreciate the help from everone.

thanks,
jon

 

Post up some pics of the completed project. It sound like a cool idea!

Herb

 

Will do man, it might be a couple weeks but I'll get r done.