I was thinking of doing some updates to my stock 95 GSR soon. One would be to replace the exhaust manifold. I originally thought to just replace it with a OE Type R manifold but in reading these boards I see there are many options. The list below are some that stood out to me. Some of the topics are pretty old so I don't know if all of these are still available now. I want a header that has great fit and build quality. I'd prefer to be able to keep my cat or atleast be able to use an aftermarket cat. Are any of these Carb legal? If no carb number will they atleast still run clean. Performance is cool but I'd really prefer not to pollute the Earth any more than I can control.

Almost forgot. I will also get a cat back exhaust so if I can use a Buddy Club IV or Pro Spec, Fujitsubo, Greddy Racing Ti-C or some other non-custom, I'd prefer that header versus having to buy custom. I still have to research more on exhausts but I don't want anything too loud (Buddy Club II comes to mind).

RMF = http://www.raceaxis.com/produc...d=408
SMSP
<U>HyTech</U> - too long for the factory cat
<U>AN-R</U> - Will not clear Factory AC Unit
Toda
JUN
<U>Six Sigma</U> - Street Sweeper: Six Sigma representative Derek Parris states, "This model is designed to be used on modified engines and is not compatible with B-Series engines that have power steering or A/C."

Six Sigma - B-Unit 4-2-1 A/C and power steering? No problem. Get the most
out of your B-Series engine wiht our classic 4-2-1 tri-y designed header

Thanks for any information or suggestions.

Modified by icrnk at 11:15 AM 5/1/2008


Modified by icrnk at 11:20 AM 5/1/2008

 

if you were interested in the itr manifold, you cant go wrong with a DC sports header... why dont you research a tri-y header, thats what i have.

 

Thanks for your input. I did look at DC but have read a few mixed reviews. I will just go OE if I decide on that design even though it cost more. I'll look into the Tri-y. Thanks

 

I've never been a fan of DC products. I've had the welds on their headers fail on me before. Since your interested in a Toda, I have one that you could convince me to sell. Its only got about 2000 miles on it and it comes with a newer o2 sensor with about the same mileage.

 

i don't see a reason to consider DC either, they are the same price as the superior edelbrock 47522 header, fit worse and make less hp. most of the stuff you listed is really high end and costly. before you spend any cash i would look ahead to how much power you want to make with the car and how fast you want it to go. for example, when i bought my gsr my goal was a 14.9 with no drop in MPG. pretty easy goal, but hey, it's my daily driver. i spent right at $500 to accomplish that. in your case, think about what you want to do. do you want the bling? coolest header on the block? or do you want the most hp for your buck? also, the hytech design, while really good, is too long for the factory cat.

 

^ couldnt have said it better

 

Good questions. It's just a daily driver that I want to make a little more fun to drive. My shocks are shot so I ordered a Koni Sport Kit to upgrade and lower the car as it sits a little high (probably installing this week). It's about a 1.6" drop. My wife hates the color, Aqua, so I may get a whole new paint job sometime next year. I'm don't really have a goal speed wise but if I'm replacing something I want to only replace it once. I also want to remain legal and not have to have a lot of customization to make the part work; such as removing AC or messing with radiator clearance. This may take many of the replica's out as I'm sure cost have to be reduced some where; possibly in workmanship. As far as bling, some of the header designs look cool (street sweeper) but that's not too important. I'll mostly get mild motor work (cams, cam gears, intake manifold, header, exhaust, and anything else that may be worn out on a 105,000 mile + engine; as well as a tune for all the work. I'm not considering the Hytech anymore as it's too long for the cat so hopefully that gives you an idea of what I want. I don't have a specific number I'm trying to meet. Just want good quality build (no mild steel), good fit, improved performance, legal. Most importantly, I'm not in a rush so I have plenty of time to research. I'm just trying to narrow down my choices and go from there.


Modified by icrnk at 1:47 PM 3/31/2008

 

You're not in California (according to your location) so CARB isn't an issue.

 

I wasn't too sure about that, thanks.

Are DTR, SSR, and Six Sigma the same? I thought I saw that DTR Street Sweeper was from Siz Sigma.

The RMF looks good but looks like they have a Narrow Style and a Street Header w 2.5" collector. Will either of those work?

 

the edelbrock 47522 is probably one of your best bets for a bolt on header {$300-350}. it clears the factory ac perfectly, has a carb number should you ever need it and wickedly awesome ground clearance. it also will support your future mods, at least what you have listed. in an all out application it isn't as good as the hytech or the full on race headers, but hey, when you do bolt on, it's not an all out job. now just pick out your favorite exhaust and you'll have a nice combo. remember, pay more, get more, just figure out what you want to spend.

 

A couple things here, I have been running a DC 4-1 SS non-JDM for 8 years no trouble at all, over 100,000 miles on the header.
Many of those headers listed are longer than the stock header so moving the cat could become an issue.

Some bang for your buck headers:
OEM ITR JDM 4-1
Edelbrock
TRI-Y 4-2-1 Production Header ( Replica ) http://www.kteller.biz/product...D=482

With over 100,000 miles your cat may be toast also. You could always get a replacement from SMSP, very good work .
If you are concerned about emissions get a tune-able ECU to clean up the A/F ratio.

 

Great suggestions. I don't mind getting a different size cat as long as I can run a cat; and you are right that at over 100,000 miles I probably need a new one anyway. The TRI-Y was looking good but (Due to the long tube design for performance, this header will eliminate stock catalyst converter and meant for racing only.) it requires removal of the cat. I'll take a look at the Edlebrock but I'm not too up with them on import parts. When I see their name I think Ford Mustang.

 

Is this comparable to the Edelbrock?
Greddy SUS 4-2-1 Header Acura Integra GS-R 1.8L VTEC 94-99
A perfect match to GReddy cat-back exhaust systems and/or GReddy Supercharger Kits. All GReddy headers are made from stainless steel mandrel bent pipes. Great care was taken during the design to enhance the performance of your normally-aspirated or Supercharged vehicle, by fine-tuning the placement, size and angle of each collector to even out the exhaust pulses. Combined with large primary runners make GReddy Headers a solid choice for your vehicle.

I didn't know JUN made one too
JUN Exhaust Header Acura Integra B16B/B18C DC2/EK9

The JUN exhaust manifold is all ground made of stainless steel SUS304TP and the flange is manufactured by our CNC machining center. Our 4-2-1 Manifold is designed to gain the maximum performance through the lightest weight and strength using the same process of developing the racing-use parts.

Specs:
Material: Stainless Steel
Primary: 45.0mm
Secondary: 50.0mm
Tail: 60.5mm

 

that greddy header is a nice piece and everything that company makes fits great. when i bought my header those are the two i narrowed it down to, greddy and edelbrock. in the end i bought the edelbrock for two reasons. one was the ceramic coating which keeps temps down, the other is that testing that has been done on that header. it's actually a very well researched bolt on. the greddy doesn't physically look that much different though. here are a shot of the edelbrock for you to check out. http://members.aol.com/c5in2004/head.jpg

 

You are right. There is more information on the Edelbrock and next to nothing on the Greddy.

I found the following information on some site just in case some find it handy:

45mm = 1.77in
48mm = 1.89in
50mm = 1.97in

Toda B18C 4-2-1 header 45mm primaries and 50mm secondaries

Spoon B18C 4-2-1 header 45mm primaries and 50mm secondaries

JG B18C 4-2-1 header 1.75" primaries and 2" secondaries

Almost every DC 4-2-1 header from D16, B18, B20, F20, H22 and H23 1-5/8" primaries and 1-3/4" secondaries.

Mugen 4-1 B18C header 45mm primaries
Mugen 4-2-1 B18C header 45mm primaries and 50mm secondaries

I still don't know what I want but I'm not in a rush.

 

I'll tell you one real plus on that edelbrock. it's quality. not a single thing needed to be altered when i installed it. bolts on like OEM. Also, i found this Chevy dealer that is selling them for just under $300 http://gilbertautoparts.com/st...40808 call this place and ask for a price on the edelbrock 47522 for the acura integra gsr, they actually have it on this website but you have to click around to find it. $297 if i remember right. beats any web price i could find. if you really want to get cheap the next thing you do is call summit racing at 1-800-230-3030 and tell them you would like to buy that header and they will match the price, then you only have to pay summits flat $10.95 shipping charge. As you can imagine, that's how i bought mine

 

Thanks for all the advice and info so far. I happened to see the following and never really seen any mention of this piece.

http://passwordjdm.com/Fujitsu....aspx

Their exhaust seem to get good reviews. Anyone know anything about this?

What about Silk Road. I never heard of them before.
http://passwordjdm.com/Silk-Ro....aspx

 

Did you do the 2.5" colletor mod? I'm guessing that means cutting off the stock collector and getting a bigger collector welded on. Is this easy to do by any muffler place. Would it be better to buy the 2.5" collector to bring with you.

 

What are the Specs for the 98spec Type-R header? I looked and I see it's a 4-1 with 2.5" collector but can't find the primary and secondary measurements. Also is it Stainless steel? Most pictures I see of them seem to look rusty. I want to compare it to the Edelbrock to determine which way to go. OE Type R or Edelbrock with 2.5" collector mod. The prices look to be similar. What does it cost to get the 2.5" collector mod done and can any muffler place do it? Should I buy the collector myself and where is a good place? Also, I see the Edelbrock is ceramic coated. Is the material under that coating Stainless steel?

I see the following Edelbrock

67312 - Ceramic Coated Pro Flo 1-Piece Headers for 1997-01 Acura Integra Type R
47522 - Ceramic Coated Pro Flo 1-Piece Headers for 1994-99 Acura Integra GSR
6652 - 304 SS Polished Pro Flo 2-Piece Header for 1994-99 Acura Integra GSR
6752 - 304 SS Natural Finish Pro Flo 2-Piece Header for 1994-99 Acura Integra GSR
6653 - 304 SS Polished Pro Flo 2-Piece Header 1997-01 Acura Integra Type R

Are the other options not popular because the prices jump up and there are better options at those higher prices?

Would the 6752 & 6653 be about the same quality as the OE 98 Type R?

Thanks for any answers.

JG B18C 4-2-1 header Tri-Y 1.75" primaries and 2" secondaries
98 Type R - ?

 

Tri-Y headers are sick sounds sweet too

 

Im pretty sure you can find a header without changing the cat at all. You could get both a header and cat-back exhaust without changing the converter

 

oem jdm itr header, with renault cat (from hytech) with hytech twinloop catback just be prepared to wait a while john takes his time with all of his projects.

 

That's a pretty good suggestion. Do you happen to know what secondary and primary measurements are for the oem jdm itr header? Aside from the hytech twinloop catback, I was also considering the Greddy TI and the BuddyClub IV but haven't yet looked at the pipe size for those yet.

 

Get a Hytech rep...

 

not off the top of my head no i dont, but i know someone in here does just do a search.