TB bypass and other stuff

Im begining do moddify my car and ive been wondering does the Throttle body bypass do something good? also in my country the emmission laws are not strict so i can nearly do anything i want. also and what mods can i do wich give hp but dont cost to much? what do you recomend that isnt to much hassle doingl ive been looking to gut the cat but dont i need a o2 sensor for it?

What year Firebird do you have and what engine is in it?

John

I'm not sure which years had a post cat O2 sensor, if it doesn't have one you can gut the cat but it would be better to remove it and replace it with a straight section of pipe, a hollow cat can sound bad and it disrupts the exaust flow. If it does have a post cat O2 you'll need an O2 simulator to fool the PCM into thinking the cat's still there. If you need the "appearance" of a cat on the car you can replace it with a pipe and place the hollow outter shell of the cat over the pipe so it looks like you have a cat still installed.
As for the TB bypass you'll gain a few hp, especially when it's warmer. There's no negatives, only positives to doing it so I say go for it.
For other simple mods you can get a cold air intake and a cat-back exhauts system. If you wana do a little more than that you can get a good set of headers too.

i just ordered the other day a air intake system but it only replaces the old air box with a cone filter do you think that will make some diff? or do i need to make an extension to let it take cooler air?

this is a 1995 lt1 bird. i have also been having trouble with the exhaust manifold from the engien i need to but a gasket between the engien and the manifold....... its the left side when i look down in the hood. do i need to remove alot of things to get the gasket in place and ready?

Hope this helps. http://shbox.com/1/tb_bypass.jpg . Also steering linkage and brake master cylinder vacuum hose are the only things I can think of you need to install a gasket and remove the driver side manifiold.

John