I want mreo performance out of my lil 2.8L V6 which is bored 20 over and has a beefed up cam and have a pair of hooker headers im gonna throw on. I have seen do it yourself cold air intakes since no one makes one for my model/year of car would a home made cold air intake work on on older car? What is needed of my engine to be able to install one?
In the 2008 Pontiac Grand Prix you are running the 3.8L V-6 with a base of 200HP. If you are just replacing the existing cold air intake with OEM (Original Equipment Manufacturer) parts you are not going to get enough to make a difference if any at all. But if this is an aftermarket bolt-on Performance cold air intake you could see an increase of HP around 15-25 HP depending on the replacement part. (KN have some of the best intakes.) You could notice a little improvement in the take off speed, but just like most bolt-on Performance parts it does not do much. If you keep adding different bolt-on Performance parts over time you will notice a big difference from when you were running OEM. BTW a good exhaust would be a Perfect match up with the intake and would improve the performance of both.
you should be able to install it no problem. there shouldn't be any computer problems to worry about. your car shouldn't have a computer. now as far as performance, you won't really notice any difference with one of those.what you should look for is a turbo set up from a grand national and have someone custom fit it to your 2.8. seeing the grand nationals are 3.8s. now that you would definitely notice. ) vroom vroom! just don't s#!t yourself when you find out how much faster it is. LOL!!! good luck.