I had my bonnie on the lift to replace some bad engine bearing and while i was under the car i was looking at where the exaust manifold goes into the cats and was thinking is it possible to cut off the exaust system without causeing any problems such as back pressure problems im short on cash and im looking to free up some hp while giving my bonnie a nice sound.

bad idea...there are laws against running no mufflers and such. It will be terribly loud too.

dont do it, its illegal to run w/o a cat, and it is LOUD

bad bad idea

It would help to know what model you have, and where you live, but the question has been answered already, and it WILL hurt performance.

You will loose a good amount of torque because of no back pressure.

I know it sounds bad-*** at idle. and as soon as you start moving it sounds terrible, i mean awfull and you'll be slower too.

have u ever heard even a 4 cylinder with no exhuast?!??!

hell...my 1 banger mini bikes pipe fell off one time...loud as hell...

it will get the girls....trust me... them sitting next to you with there earmuffs on...

im running a 93 bonnie SE. i live on long island new york and with every other idiot runiing civics with fart pipes i'd be suprised to get pulled over for the exaust being to loud

It'll kill performance. That'* worse than the loud noise. My advice is to save all your old exhaust, because you'll be putting it on the day after you cut it off and realize you lost all your off the line grunt.

Plus you'll suck gas like no other too.....and with todays rising prices at the pumps....probably not the greatest idea. not to mention what everyone else says...it does sound like ***