here was my 85 with 22r, LCE header, no cat, 2 chamb. flowmaster.

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newbie so dnt get mad, but wuts the cat? n please describe lol

 

"cat", short term for catalytic converter.

if you dont know what a catalytic converter is ..... basically, its a chamber mounted underneath most cars to reduce emmisions making the exhaust it lets out less toxic as it passes through the cat and into the air.

technically..... "a device used to reduce the toxicity of emissions from an internal combustion engine. First widely introduced on series-production automobiles in the U.S. market for the 1975 model year to comply with tightening EPA regulations on auto exhaust, catalytic converters are still most commonly used in motor vehicle exhaust systems. Catalytic converters are also used on generator sets, forklifts, mining equipment, trucks, buses, trains, and other engine-equipped machines. A catalytic converter provides an environment for a chemical reaction wherein toxic combustion by-products are converted to less-toxic substances."

quoted from wikipedia. if you'd like to research it a bit more.... here's where i got the info.



the general idea behind removing the cat is it unrestrics the flow of exhaust flowing through to allow the truck to breathe better and gain a little bit of power. or so i argue.....

 

haha yea i kno what the catalytic converter is i just didnt know the short term usage for it... i guess im not as much of a newb as i thought, jus not good with the slang