don't know if this is the right civic forum, but...

friend has a 2003 civic SI, just wondering, what are so mods. to gain some hp? exhaust, intake, ??

also, for my info...what are the gear ratios (and ring&pinion?)?

 

1st: 3.062
2nd: 1.769
3rd: 1.212
4th: 0.921
5th: 0.738
Reverse: 3.583
Final: 4.764

That's all I know off the top of my head.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SlammedBlueEM2 &raquo;</TD></TR><TR><TD CLASS="quote">1st: 3.062
2nd: 1.769
3rd: 1.212
4th: 0.921
5th: 0.738
Reverse: 3.583
Final: 4.764

That's all I know off the top of my head. </TD></TR></TABLE>

cool, alright, thanks for the info..

ahaha..didn't need the reverse....lol


Thanks again.

 

Do a search on which mods to go for.

 

One thing i dont understand why honda did this. Off the manifold looks like a 4 inch collector, and inlet for the cat. And looks like a 2 1/2 outlet on the cat. Then they got it running into like a 1 1/2 inch exhaust pipe. That has to be a pretty bad restriction, thats where i would start...

 

I have the question of what is your friend planning to do with this EP3? Then I might help with some ideas of mods...