i also own a 1990 mercury grand marquis ls 5.0 v8 and i want to know what i can do to it (buy) to increase alot of horsepower i wanna drag it but i dont want those bigger backside drag tires and custom suspensions i want loud exhaust like flowmasters n horsepower!!!
Answers: easiest item is to cut the cats and hook it up with some 40 series flowmasters dual chamber....lol can you utter loud. i have a 76 cadillac next to a big 500cu motor with that setup...loud! you cant ratify emission test tho lol
Trade it in on a Mustang
Small motor for a short individual!?
Answers: easiest item is to cut the cats and hook it up with some 40 series flowmasters dual chamber....lol can you utter loud. i have a 76 cadillac next to a big 500cu motor with that setup...loud! you cant ratify emission test tho lol
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Trade it in on a Mustang
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