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IF someone who has acctuallt installed these onto their RB25DE gives me a run down on how it improved their responce.. Ill be in too

i cant give a definite answer as i did my extractors and full exhaust at the same time.

first instance was a fatter mid-range, VVL/VCT was much more notice-able, top end revs right out till ~6500/6800'ish. revving and delivery was sharp and smooth.

note: i also did get an SAFC2 at the same time and got a fair bit leaned out.

skimming through the thread there seems to be about 6 people interested.

blk_sz (Beau)

inthisglass (Karlos)

GTS4WD (Cris)

cam_R33 (Cameron)

R33 Ribby (Kane)

MicR33 (?)

if everyone sticks with it, i will run the group buy. we really need the numbers to make this work, i won't advertise this elsewhere to make up the numbers required like last time due to people pulling out. so if you are unsure, say so now.

i've sent emails out to partsco and the hp coaters. i'll advise back on prices.

as a rough timeline, we're looking at:

late jan - names & deposit

early feb - orders placed and transfer of money

Hi guys,

I contacted Partsco, cause i need extractors asap, and on there site they were $206 and comes with red factory high temp paint that coby use, is this good enough cause they did tell me about True HPC ceramic coating is usually a

dull silver colour and would cost around $200 to do a set of Coby D12's.

Would this be better or just the standard high temp paint they use would be fine, cause $200 is quite a bit.

they said: You are looking at around $70 to air freight the D12's to Aust and you would

need to allow 3-10 days (as quoted by NZ Post).

Sounds quick?

well i kno im definately in for extractors but duno bout this coating stuff ..does it make a difference for an extra $200??

but yeah i was quoted coby d12 extractors $288 + shipping $80 to be delivered to Melb.

A Lot of people are not wanting the hpc coating, im not sure if its the money issue of getting them coated or if its just the fact that no one knows what the coating actually achieves.

If i know what it does and if its benificial enough ill go for the coating..

also, im getting a new catback made up in 2.5 inch mandrel bent stainless steel. (custom made by kirmit on these forums) Will the coby extractors be the same length as the original headers? or should i wait till i get the extractors then fit the new catback as the extractors might alter the length of the rest of the pipe?

im pretty sure the extractors should just fit straight in but just want to make sure i wont have to get the catback modified.

oh and im still definately in for the group by :D

cheers

Karl

google "HPC" or "HP coating", it's basically a thermal coating to maintain temps.

i'm not entirely sure if you will notice any significant difference between a car with/without hp coating. however keeping the heat out of the engine bay is enough to sell me - it is odd that they cost just as much as the extractors themselves but the coating is contracted out.

in regards to getting an exhaust, i'd wait for the headers - they don't come with flanges so it depends on what diameter you're after to weld them on.

that said i had no dramas welding my headers onto my full exhaust system, any exhaust shop can cut to suit.

ok cool, is heat wrapping cheaper? If so may as well just get the extractors wrapped in stead of coated..

so your saying we should get the extractors fitted, cut to size if nessesary and have flanges welded on then have the cat and cat-back made up.

either way im still looking forward to the day i get mine :)

it's not really such a big deal as everyone makes it out to be. the headers will end at the same place as the standard front pipe.

the headers come 2.25" standard, i will try to arrange a choice between 2.25" or 2.50" outlets again (was free of charge prior).

heat wrapping or hp coating either way is fine, they will work if you don't wrap them too.

i still haven't received a response yet (not really expecting one too soon due to holidays).

will keep you guys posted.

when'd you get an NA dale?

hey dude how r u :)

Pacemaker make really good Extractors guys, Not sure if they make for RB engines though. I noticed a world of difference when using them on my old NA car.

Edited by silverbulletR33

Eug put me out on this one as i need mine asap, i have ordered a set with gakset and hpc, and yes they did say it has gone up, i was unhappy but still gonna pay for it, think it will be well worth it in the end, thanks anyway

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