im looking to buy some longtube headers and y-pipe for my 96 formula. and was wondering does anyone know if you have to get the car retuned before it will run properly once the headers are on? thanks for any input

 

Its recomended that you get it tuned, espically if you are deleting the AIR and EGR. I drove mine for about a week untuned, and it seemed okay, other than having an SES light.

 

oh ok thanks. i was told the ecu was tuned for the manifolds and would run worse with headers if it wasn't retuned

 

are you going to be deleting the air and egr? if so then i would go ahead and get a tune. Like i said, i drove mine for about a week waiting for my tune to come in. I didnt really notice and problems other that the car staying in open loop.

 

it will run better with a tune. Also will provide better gains. Id do it.

 

yea i will be keeping the air and egr for now

 

Yeah it will need to be tuned to run properly!

 

will it run like crap otherwise? or just not as well as it could?

 

It would run w/o a tune but better with one Plus you will squeeze out a few more ponies with the tune.

 

and would i need to also get new O2 sensors for the front

 

Usually no..if you can get the stock ones off! And get a mail order tune, you'll be happy you did.

 

Not if they are in good shape

 

Look into getting a LT4 knock module too.
http://cgi.ebay.com/ebaymotors/93-97...mZ290269195545

 

how hard would that be to install

 

i am pretty sure they are very quick to change, doesn't take but 15 mins i believe

 

also pacesetter the way to go with their off road y-pipe?

 

The LT4 module takes a few minutes, basically pull the PCM out with 4 bolts, take off the back cover and swap em. But if you're getting tuned the tuner can make your stock module work fine.

Nothing wrong with them, the price is great and great bang for the $

 

You shouldn't. I ran without a tune and the car ran just fine. Car ran about .3 quicker too.

 

The knock module?? Just put it in before you send the pcm off to get tuned. 2 screw on the back and throw it in...maybe 2 min install with the pcm out

 

I seriously don't understand why people go to all the work to build a car and don't get a tune...plain retarded. Why not squeeze all the HP out you can and get the car to it's full potential. Don't listen to this guy this is a noob comment "you shouldn't" Great advise

Stealth, didn't we just go through this with some tool on here...lol