yea you may not pass NY emissions with the straight pipe or high flow cat
i dont register my car in NYS even though i live here so i dont worry about emissions, but you probably wont pass without a stock cat on it so get it inspected right before you put the pipe on it...without a cat its also gonna smell pretty bad behind your car when u are beating on it.

 

hhmm crap...i mean hondas r crazy good at emissions to begin with...i figured they wud just squeeze by if i threw on a straight pipe or hi flow cat....

 

What alphawerks? Has anyone tried their header? Its about the same price as DC ceramic but its TIG welded and stainless steel.

 

what is the collector size on the jdm type-s headers and megan racing headers?? anybody know?

 

^good question...i wanna kno too

 

im looking for a megan header on ebay for a 5th gen lude but i cant find any...i clicked on some that jus said stainless steel headers or wat not and it looks like they may be megan....i try and look for that badge on the 3rd runner

 

can anyone tell me how to recognize a megan header on ebay from all the other shitty ones???

 

ironically, megan used to be one of the "shitty ones."

btw, the crossmember modification on a prospeed isn't that big a deal at all. take a BFH, hammer away at it a little, and it should give you enough clearance. also keep in mind that kteller.com is selling the same header design (made by the same guy) that might have better clearance.

as far as the ideal bolt on setup you want:
good header, let's say a prospeed/rage/kteller (all the same thing)
2.5" flex pipe
2.5" high flow cat from random tech, carsound, or magnaflow (straight pipes or ebay high flows are asking to fail emissions, and bad for the environment, and trigger CEL's)
2.5" custom exhaust

tune it with a VAFC, or if you want, a hondata if you're planning on more mods.

with that setup i think 190 whp is very realistic. 210 whp with cams.

 

ite...im kinda confused...wats the diff between the mild rage coated in silver and the stainless steel rage header?? wats a bfh??? ok im prolly gonna pik up a rage header and a carsound hi flow cat(im gonna to an exhaust later on, i wanna see how the header performs first)....i need to get a 2.5 flex pipe to add on the header cuz the rage headers dont come with em right?? by 2.5" custom exhuast u mean jus pik up an apexi muffer and have a shop bend exhuast piping for me?? thanks alot monkey

p.s. ill also be running obd2 so will there be a prob with oxygen sensors??

 

mild steel coated isn't as strong as stainless, so there's more potential for the header to crack (it happens, sometimes), but a flex pipe might get rid of most of the things that might cause a header to be damaged. you need a flex pipe for sure.

2.5" custom exhaust would be piping from somewhere, mandrel bent, with however big of a resonator you want (some people run small ones, some run larger ones. smaller ones will make a louder, exhaust note and vice versa for the big ones.), welded to a muffler section. you can go with apexi, magnaflow, ES, whatever you want.

the OBD2/cel issues usually come up with garbage "high flow cats" that you get off of EBAY, but sometimes even the good ones will trip a CEL. however, i think as long as you get an OBD2 compliant high flow (that has an o2 bung welded in it, for the secondary O2) you should be ok. if you get a CEL, you can get an O2 sensor hack that will fix the issue.

as far as where to buy the flex pipe and the exhaust piping from, www.kteller.com is a good place for stuff like that. it might just be easier to buy an apexi or greddy exhaust, and they're good pieces, it's just that most JDM exhausts have a 60mm inner diameter (2.36") which wouldn't be ideal for a system that's based on 2.5" piping. as far as the header's performance, it will be an improvement over stock, but you might not really notice really big gains until you get that exhausts. when you do breathing mods, you don't want to have a bottleneck anywhere in the system and the stock exhaust piping will definitely create a bottleneck.