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Old 07-17-2013, 11:34 AM   #11
Pvtjoker53
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Yea but a friend of mine has a cavalier with a cold air intake and a full catless exhaust, stock he has less horspower and torque than i do so if he only gains 5 horsepower from those and i have a cold air intake and a straight piped exhaust from the cat to a n1 muffler how his he able to stomp my car
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Old 07-17-2013, 11:34 AM   #12
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And trust me its not the driver either
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Old 07-17-2013, 12:14 PM   #13
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There are probably a hundred factors that go into this equation, and I don't have enough information to fully answer, but let me try.

typically speaking, mods are cumulative and work together. For example, if you add a CAI, you will see some gains, if you add to that a full catless exhaust, the gains of both the CAI and the exhaust are a little better than they would be separately.

Also, not having a cat is a significant improvement over a hiflow cat, which is a significant improvement over a stock car.

Now, I don't know much about cavaliers, but I do know a thing or two about the SPI. I know that any gains you are getting from your exhaust are being practically negated by the design of the exhaust headers. I also know that your ebay muffler is probably doing more harm than good.

So basically, the only mod that is helping your car is your CAI. you might be seeing 2 HP from that, depending on how it is hooked up, brand, filter, cleanliness, etc. You will be seeing minimal torque gains from just a CAI.

Now, look at his car. His full catless exhaust system will probably be getting 5-10 HP, add that together with the CAI, and there is probably a nice improvement over stock. But the biggest difference is torque. The full exhaust system probably gives him a significant torque boost. If I had to guess, it would probably be in the 3-5K range, which is the power band in many cars, and is most important in straight line acceleration.

Plus there are other factors such as condition of the vehicle (tires, suspension, transmission, etc) weight (I dont know year or model on the cavalier, so I don't know the difference) auto or MTX trannys, and a hundred others...

It is not surprising that he "stomps" your car. And he will continue to do so until you make significant torque increases.
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Old 07-17-2013, 12:19 PM   #14
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Well that makes alot more sense thank u
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Old 07-17-2013, 12:24 PM   #15
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Ok so what would be the best way to get this header or a header that needs minimal work
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Old 07-17-2013, 01:06 PM   #16
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You can check the focus forums marketplace sections, and you might get lucky and find one already modded, but that is highly unlikely.

do a search for pacesetter or OBX escort lx header. Make sure it is LX and not GT. find a 4-2-1, not a 4-1 header. Basically, that means that the piping goes from 4 pipes, to two, to one not directly 4 to 1. (I tried a quick google search, and all the obx ones I found were 4-1), the pacesetter looked like a 4-2-1.

Then check out this thread: http://www.focusfanatics.com/forum/s...=escort+header
Page two tells you the modifications that have to be made. Any reputable exhaust shop should be able to do that for you.

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Old 07-17-2013, 02:17 PM   #17
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Thanks man i apprciate it
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Old 07-17-2013, 02:32 PM   #18
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Glad I could be of some help.

Also, the thread I linked, tells you how to mod the header to keep your stock cat. In order to do that, you will need a shorty header. long pipe or racing headers will delete the cat. that will give you better gains, but might get you in trouble with emissions, depending on your local laws.

have fun and good luck

feel free to post any other questions that may come up.
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Old 07-17-2013, 03:53 PM   #19
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I live in ohio we dont have echeck anymore and heres a website i found the pacesetter 4-2-1 header would this work http://www.autopartswarehouse.com/sk...P40701168.html
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Old 07-17-2013, 04:15 PM   #20
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that looks like the zetec zx2 escort header, which will not work.

After doing my own search, I have found several obx 4-1 headers on ebay, no 4-2-1. The pacesetter all I can find is the GT variety. let me do a little more research and see if I can find out the difference.
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