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my car is stock i recently wrecked it and had to get a new hood and other things but i now want to start doing hp gains...... any recommendations

 
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This question has been answered a lot,and it would help if you would search.The 7th gen has the D17A which is reliable,but not a good source for HP.Or you have an EP3 with the K20A3.Which is the economy K20 which has less power than the Type R K20 or the FA5/FG2 SI K20.Normal bolt ons won't do you any good with the D17A.If you want real power,you would need a good turbo build or swap the engine out.

 
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if i did like a full exhaust, header, intake, underdrive pulley, and a throttle body would it make any differance

 
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Bolt on = header,exhaust,and intake.From the bolt ons,you will get very minimal gains.Maybe 5-7 HP.10HP at most.I'm not sure about the pulley and throttle body though since I don't own a 7th gen myself.But I know from other members on this forum that I/H/E on the D17A have small gains.
Edit:But either way,without a turbo,the D17A won't produce you any good power.The turbo build or engine swap should come out around the same price.A really,really good turbo build could run you up to $10,000,or you could swap in a Type R engine like a B16 or B18,those will run you somewhere around $4,500-$6,000.Or you can get the more powerful Type R K20A which is from $7,000-$8,000.

 
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Pulleys don't give much power, maybe 3 hp with a tune.

Swapping in a b16, b18 or h22 would only be legal if its a 2001 motor and even then it would require a lot of custom parts. There are lots of things you can do to improve the braking, suspension, cosmetics on 7thgens its just making power is almost impossible.
Intake/exhaust/TB will make just make your car sound better.

 
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whats better a b16 or b18

 
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It would cost more than it's worth to swap a b series into a 7thgen

 
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a question - do you have EX or the others?
Also, if you don't want to go too much, if you have the EX, I/E/H and a crower stage1 cam is the best way, but will throw you back over 1k for a 20-30 ponies.

 
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i have an lx.... is there a vtech swap i can do or can yu give me like parts to get to do the swap instead of swapping the whole motor. links are highly appriciated