First of all Im real sorry if this is already asked but I read as much as I could and didnt find any forum for it.

I gotta 2002 V-Tec 1.6L Vti yes its correct lol.... No Air Bags (didnt come with any) lol dont ask or try not to...

So my question is First I heard that Vtec doesnt really even engage till 5000 rpms also saw the boat movie so I want to get headders and was wondering which set up to go with 4-2-1 or 4-1 everyone said 4-2-1 but then i read that if vtec doesnt even engage till 5000 rpms is it even going to let me use all that power or let all the power to waste so wouldtn 4-1 be better when the vtec does hit in. Or the Ecu will change when vtec hits but read it doesnt....so if anyone can clear this up please

My second Question is that I wanna do a custom exhaust I guess its called a dummy dual exhaust, I want to have the headders go down and then split the pipe into two to do a side exhaust runing infront of the rear tires on each side with a whole in the skirt so all u see is a hole and a small grill like the mustan cobras i think so if this gonna make the car go even worse I could only get one guy to answer on this he said it will make ur motor shittyer

My third question is I read in alot of articles that if you make your own headders they will be better than any aftermarket ones well most affordable ones in the 300 dollar price range also I moved to a third world country thats why i cant really get named brand parts unless I want to pay up to 200-300 % duty on it. So is this actually true if i creat my own they should run better because I have welders and Pipe benders that would do this cheaply for me..

So if I do all these things would it help a lil or actually make it worse is so could you tell in detail which idea would work if any..... and sorry if its a question already answerd....but really waiting for the next step so i can do something on the car.....
And i talked to my local honda dealer he said if he changes the Vtec specs for me to hit in earlier the whole system my not work properly maybe resulting in alot of power loss or loss of money to get a whole new system...he went in detail didnt understand alot...thanks everyone..

 

For the love of god, don't do the dual dummy exhaust. It's the riciest, stupidest thing I've ever seen.

Making your own headers should be fine. They're just tubes anyway. Just make sure your local cheap labor does a good job of it.

 

LoL u think it wont look good i havent seen may imports with it well also will the hp gain with the custom headers be the same .....or more or less and also i want more of the sound of the engine now the whoomp sound i hate that any advice or just leave it at the headers

And can someone please answer the question about 4-2-1 or 4-1 because vtec engages at near 5000 rpms anyways would 4-1 be better than 4-2-1 (which would create unusable power) or am i wrong on this theory...........