Looking to get a new header soon since I'm getting a skunk2 mega exhaust. I've got an all motor b20vtec. I'm not tryin to drop a grand on a header but want something that will give me more power. Been looking at the rmf narrow. Anyone used this header? Think it will give me a noticeable increase in power? I'm runnin 11.3:1 comp pistons and got ferrea flat face valves and edelbrock victor x manifold. If anyone has any sugestions for me lemme know

 

Have you looked at the 1000+ other header threads and read the info in the FAQ?

 

Ive read through other threads. But was hoping to get an opinion on what might be best for my build

 

X2
Just search man and it depends on your funds

 

If you want a header that will make good power and not break your savings account, the hytech big tube replica header seems to be right up your alley. If not I would tell you to go with an original Smsp b19 header

 

Yea I saw a few threads on this one but I'm actually now thinking the toda rep would maybe be better. Thanks for good resoonse !

 

skunk2 alpha

 

Ive done my research and believe it or not from what ive learned at least it seems that these plm replica headers outperform the alpha in most cases. Especially the toda rep and v2. Oh and the big tube hytech. I'm probably gonna go with either the toda or v2 bisi rep

 

Obviously you havent researched enough. But hey, what do I know. Get the bisi and let me know how that goes

My research...
https://honda-tech.com/forums/all-motor-naturally-aspirated-44/real-bisimoto-header-test-done-mikeyspec-profunction-2969367/
https://honda-tech.com/forums/all-motor-naturally-aspirated-44/budget-header-showdown-replica-headers-vs-skunk2-alpha-1-8l-dyno-test-3005484/

Beings you're running that god awful IM and not enough compression/displacement to support it at lower RPM without getting a giant "vtec dip", I would run something with smaller tubes. A hytech WILL kill your setup in the big tube version. I put my name on that. The Toda or Skunk2 will give you the best all around results.

 

This march I plan to sleeve my block and maybe put 12.5:1 or 13:1 comp pistons In it along with bc stage 3 cams. Think the bisi will be best for that set up?

 

I'm trying to plan ahead cause I don't want to have to buu another header. Also about to purchase an exhaust what do you reccomend? I'm looking at skunk2 60mm megapower or skunk2 70mm RR megapower

 

The bisi header got beat up by the JDM ITR stock header. It's JUNK. Anything with all those bends is just screwing itself out of power. Anyone who understands basic header concepts will tell you this.
IF you REALLY end up running 12.5-13:1CR the hytech big tube or Skunk2 will do well on your setup. The toda is aimed at being best on 1.8's.
You would benefit from selling that IM and running a ported ITR manifold or something of that nature.
As for exhaust...does noise matter? I hate loud cars but my opinion doesnt count. 3" with a couple resonators and a good resonated muffler will fair well.

 

Im not saying PLM is the best by any means, but they are hard to beat in the bang for your buck factor.

 

For your setup your going to want to run a 3" exhaust if you want to make power. Skunk2 exhaust is super expensive for no reason. Their Alpha series header works good in 1.8 liter motors from what I know. The Toda replica header is almost the best header you can buy for a B16. The V2 Bisimoto header sucks ***, I had it myself when it first came out more than a year ago and sold it before even installing it after reading reviews proven time and time again, dyno sheet after dyno sheet, that it kills your midrange. What is your price limit on the header? That is what it depends on. Your going to have a high compression B20 vtec, definitely don't want none of the headers you have named if you want to make power like I said. Really boils down to how fat your wallet is. Also the Buddyclub Spec 3+ cams are great, but not for the motor your building. Maybe a set of spec 4's or pro 2's if you can afford them will rend you better results on the dyno after a solid tune. Hope this helps.

 

Nvm. Sarcasm detected.

 

I've heard the brian crower stage 3's will give me the most power. Buddy club spec 4's better? And my budget for a header is really around 350 max

 

Agreed^^^

 

Why exactly do you disagree with this intake manifold? Too big? If I do the higher comp pistons and cams won't it actually help me to have this size mani?

 

GET the bisi rep!!! it looks super awsome in your engine bay but doesnt make dog **** for power! thats what everyone wants right?

PLM makes some nice stuff. ima big fan of the replica header market. somthing satisfying about getting 90% of the power at 30% of the price as a real one.

go check out some of the countless 2.0L header tests on here. and def check out mikeyspec and his bisi header test. lol its a good read to say the least

 

Haha that's the only reason I wanted the bisi honestly was the look of it. Didn't realize it didn't perform well at all though. I have a full size radiator too so that won't work anyways. So the toda rep is perfect for 1.6L build, the hytech rep is perfect for a 1.8L build, what's the perfect one for a 2.0L build? I will research some 2.0 threads while waiting for a response.

 

Skunk2 is a better quality and a lot bigger than the toda reps

 

Would the skunk 2 alpha header and alpha intake mani work better together than with the edlebrock victor x I got now you think?

 

Look up the test done by mikeyspec on the 2L motors. That intake made the least amount of usable power. Ported ITR or custom Performer X are the best on 2L street setups.

 

I was looking at the s2 red pro series mani and was planning on port matchin it. But I really cannot decide between headers.....

 

Im going to run the S2 on my B20V build. Great fitment and all around great performance