Hey I thought since i have owned my 99 si for over a month i can start to look around for some bolt on parts. I came up with a list of some parts that I think would work well, but I figured you could help me. Goal for the car is 200 crank hp. I do not want to lose too much low end power, I want to gain in the 4500+ RPM range.

1) v2 aem intake- Only heard good reviews about it.
2) underdrive/lighter crank pully.- hear mixed reviews
3) DC 4-1- is the JDM dc 4-1 better power wise?
4) I am not sure on an exhaust please help
5) Thinner head gasket spoon/mugen- about how much compression would i gain?
6) Cams skunk2 stage 1- hear good reviews
7) Hondata tuning or V-Afc- thoughts?

Thanks!

 

the aem v2 intake is big bux for only 3-4 hp at the most. I would use a short ram injen or aem. Less than half the price, basically same performance. I dont have a lot of experience with pulleys and stuff, lighter crank pulley will most likely result in faster decceleration of rpms. Id go with a better header, toda, mugen, an-r, lovefab(great stuff). for exhaust go to your local muffler shop and ahve htem bend custom piping that is bigger htan stock. if you were going to do cams, i would suggest stage 2s. The problem is that higher lifting cams like more compression. So milling would be needed for optimum power from the cams. And then, im pretty sure that with b16 stage 2 cams you need new valvesprings. VAFC suxxorz. uberdata, hondata or even fpr would be muuch better. People plz correct me if im wrong about anything.

 

hytech headers

 

get a good header

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chriscorv5 &raquo;</TD></TR><TR><TD CLASS="quote">
1) v2 aem intake- Only heard good reviews about it.I wouldn't waste my money, there was a thread here on different intakes, from cheap Pepboys intakes to expensive intakes, and there were all about the same on the dyno... IMO get a regular short ram.
2) underdrive/lighter crank pully.- hear mixed reviewsGet a CTR N1 Crank pulley, those aftermarket pulleys can put excess wear on your main bearings due to vibration
3) DC 4-1- is the JDM dc 4-1 better power wise?4-1
4) I am not sure on an exhaust please help Any 2.5" free flowing system should would fine.
5) Thinner head gasket spoon/mugen- about how much compression would i gain?About .3
6) Cams skunk2 stage 1- hear good reviewsThe stage 1 cam will work well with stock compression..
7) Hondata tuning or V-Afc- thoughts?Hondata!

Thanks!</TD></TR></TABLE>

 

Thanks for all of the replys, keep them comming. How much power do you think I would gain from doing these mods?

 

Its really hard to say. You cant accurately guess hp gains at all. If I had to guess, if you did those mods with stage 2 cams, milling and port and polish, I would say around 25whp maybe more probably less.