I already have the Type S header and 11:1 pistons as they came as standard in the UK on the H22A8 later versions of the Prelude. I have a custom decatted exhaust, CAI and adjustable fuel pressure regulator and will be installing Crower Stage 2 cams, adjustable cam gears, springs, retainers, Apexi VAFC and AEM underdrive pullies.

Would I get any noticeable gains from a different header after installing all of the above as the Type S header is supposed to be pretty good already. Major problem is that Prospeed and SMSP are not available in the UK and the Mugen header is $1500 over here so it is also a cost related issue.

Cheers,

Firthy

 

Could always import them yourself..... The shipping i was quoted for a mugen header, hi-flow cat and mugen cat back to the UK was quite reasonable. I dunno how all the import tax works out but the supplier I asked was going to label them as second hand.

As for all the technical stuff. I dunno.

 

I think a Greddy header would work better. I know they don't make a 5th gen, but you can get the 4th gen hdr and make it longer to fit. If you cut it at the collector and get someone(muffler shop) to weld a stainless 2.5 inch collector with a flex pipe to add to your custom exhaust set up. I think that should work better. But my 2 cents.

 

Header for H22A8 are the same with TYPE-S OR SH, SiR???