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okay i'm new to this 7th gen stuff. I am looking at the 03-01 Civic 4DR. What model is best for boosting EX? LX? DX? well cuz the d17 in the ex has vtec, and the other 2 don't correction? Well thanks for helping me out!

 
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Although the DX/LX have a lower compression ratio, the EX's VTEC allow it to run a little more boost stock.

There are members boosting at all kinds of levels, some LXs have been boosting at 11 psi, while others dont want to go above 8.

 
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welcome to the forum, dude...

r u looking/getting for a used or new one?

hm, for boost, i think EX's good....especially if u like the sound of the VTEC when it kicks in....frrooom!

 
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a. you cant hear vtec very well in our cars, and b. I think just about everyone running 11 psi on stock internals has blown a headgasket.

Moving to F/I since this is a boost question.

 
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I have an LX. Ran 10psi once, no problems. No blown headgasket. I normally ran 8psi or 5psi depending on my mood.

Use whatever trim you want. The LX/DX and EX both have their upsides and downsides basically making them equal. LX/DX has lower compression. EX has a more aggressive timing curve. The EX has VTEC, but sometimes, VTEC can cause boost spikes, but I don't know if anybody has problems with that on the D17.

Either way... it's a toss up. The limits basically end up the same.

 
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i am looking at a used one, but if i can geta good deal on a new one i might just jump on it! Choice of color black or white. I'm in no rush to find one though!

 
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dude, one suggestion for me to you....

check all the fenders...make sure the used one got all original one...

original one got the VIN label on it..

and also make sure that the bumper ain't repainted...take a look at em...in sunlight...