with a stock 86 lg4 engine with these intake/exhaust mods how much hp/tq should i gain and how should it sound. for my intake im geting a k&n open air filter. hedman long tube headers, catco high flow cats, and purple hornie glasspack mufflers. there will be no pipes inbetween the headers/cat/ exhaust just one str8 unit headers connected to the cat connected to the glasspacks. . how much hp/tq should i gain and how loud will it be?

 

should be rather loud, too bad you have to keep those cats.

hp? maybe 20

 

ya wish i didnt have to get cats. that would save me $100 , weight and id get a lil more power lol. eh 5 more years and no more cats for me yippy.