Hi all,

If you haven't already read the news on our demo H22A Prelude, we're busy prototyping a header and exhaust system specifically for that platform for export internationally.

As a show of hands, how many local customers would be interested in setups (Mazda, Nissan, Toyota etc.) from our business if the gains are proven to be worth it (something a lot of business out there are not giving information on).

These systems are not going to be cheap but they are not going to be in the league of 10K for just a header (for example). You get what you pay for and we're looking at quality, performance and reliability long term out of each item we're planning to produce.

Our headers are designed from the ground up and proto-typed over many weeks of R&D, until we settle on a design that we're comfortable with - that makes usable power for day to use.

Please let us know the following, reasonable price in your mind for:

Mild steel header setup
Stainless steel 304 polished header setup

Mild steel exhaust system (full)
Stainless steel exhaust system + 304 polished tailpiece section

We honestly want to know your thoughts.

Regards,
Toyama Racing Spirit.

i think it could be awesome you incorporating the revised cat delete?

This is a good question, as we all want to squeeze the best out of a header - exhaust system.

I voted for 10k-15k . . .  That would be a full header + exhaust system.

Yes, I also agree that quality = money spent . . .

Also depending on what setup is currently on the car, eg; I'm not completely sure where I am going currently or in the near future for that matter.

I would like to overhaul my motor around the 300 000 kms mark (currently on 216 500), but not just that, naturally put some tricks in there like; Type S throttle and flow this and port that, nice cams and chip . . . OR slap on a nice turbo with all the other goodies . . .

A sneezing H22 does not sound like a bad idea . . .

To conclude, I am as lost now as I was when I started typing this reply . . .

But ja . . . around 10-15k . . .

i would say...between 3-5k for a header and around 2-3k for the system

Wayne, chime in too dude. Next question is going to be more specific on drive quality. Need your replies so we can continue discussing.

for me...mild steel will be good..and as for the tail piece...it's not a big issue

i would want a system that is good and relatively quiet on cruising...but it can be a screamer in VTEC...coz that is what honda is all about!!!

This is super important and good you bring it up, this is exactly the sort of sound we're after.

Now here is another sound question for you guys: Screamer or deep tones.

Each have their own preference, have your say.

This is a brilliant thread . . . typical of IK/JDMimport . . .

So, my opinion is that Jap (infamous Vtec) is renowned for that screaming exhaust tone and I would like to stick to that stereotype . . .

Deep tones generally are associated with the 325is and M3, M5, Lumina SS,  the bigger capacity motors . . .

I found this link interesting: http://www.perfweldheaders.com/svsm.html

Yes it does, there are so many grades of S/S its crazy!

Well, yes, a scoobie has a nice growl, no doubt! Even at high rpm.

A whining tone like a ferrari would not suit, than again I'm sure it takes some interesting engineering to get that kinda note from an exhaust.

I dont really mind low tones, infact it does sound tops changing down, but also avoid like a drone in the middle rpm.

Agree there, some quiet low down, and screamer up top. How about cruising speeds, 2800 - 4500rpm (depending on gearing).

Personally droning exhaust notes kill my ability to enjoy the drive.

The trouble with the torque curve on that auto box and the way it takes its time to change gears makes for that long drone like sound between gears.

With a shorter ratio manual box and the driver in full control of shift speeds and shift points, things are a lot better! VTEC however, man - that setup really sounds great.

Cheers for the comments so far. Please continue the discussion, people are free to jump in.

Next question is about power (select one) - a tough one - and totally dependent on whether you are entering gymkhana events, track racing or purely drag racing.

1.) System must make more torque between 1000 - 5000rpm, don't care if it hurts peak power. Torque will be excellent and above stock, but power will be less than stock at peak rpms.

2.) System must make more power, sacrifice lower end torque below 5000rpm is okay. Torque will be lower numbers, even less than stock at times, but peak will be much more than stock

3.) System must make a bit of both, at the cost of peak power. Torque and power will not be big numbers not as high as option 1 for torque, not as high as option 2 for power but will provide more power over stock.

Look forward to replies.

Yes, so we all on the same page regarding the droning . . .

And yes with a manual setup you have moer control of revs = more control.

I would go for option 2.

The H22 has enough torque low down for pretty much anything and if one requires that kick or more power than just climb the rpm for that Vtec feeling . . .

well...in terms of performance...

i would go for option 1 for my setup as i enjoy a lot of hill climb / track type of driving...although cams spec on my motor are aimed at peak power so i wonder whatwould be the best choice???