Isuzu Performance Header - Performance Forum

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Isuzu Performance Header
Tuesday, June 07, 2005 7:31 AM
Hey guys/Gals, I was wondering if all of you could help me out by telling me what type of header the Isuzu Performance Header is? They call it a Tri-Y design but i'm just kinda stupid right now so what would the header be, 4-1 or 4-2-1? Here's a pic for those who don't know what i'm talking bout:






Re: Isuzu Performance Header
Tuesday, June 07, 2005 7:40 AM
that's technically a 4-2-1 header. but where are the necessary bends? it looks to be almost a completely straight piece once all assembled.




I was a retard, and now I'm permanently banned.
Re: Isuzu Performance Header
Tuesday, June 07, 2005 8:01 AM
Looks homemade. Doesnt look like they took the necessary bends to fully benefit a 4-2-1 design either. I wouldn't buy it.


Rich
Re: Isuzu Performance Header
Tuesday, June 07, 2005 8:17 AM
nice set up but way too expensive, he will tryto justify the price but you can buy a high flo cat for like 40 bucks flex pipe is pretty cheap and then buy like an rk 4-2-1 header and you are still cheaper. nice thing about that set is install is pretty much a snap.






M.I.L.F. HUNTER Its quarter past 12:00 know where your mom is................................I do
Re: Isuzu Performance Header
Tuesday, June 07, 2005 8:18 AM
Looks like a 4-2-1. Do the instructions mention cutting the fire wall out . Look here for pics of the rk 4-2-1 header http://www.cardomain.com/ride/502772/5


<a href="http://nystreetscene.com">http://nystreetscene.com</a>


Re: Isuzu Performance Header
Tuesday, June 07, 2005 8:18 AM
but def. not worth the 680, he wont do group purchases or run any sales over priced






M.I.L.F. HUNTER Its quarter past 12:00 know where your mom is................................I do
Re: Isuzu Performance Header
Tuesday, June 07, 2005 8:19 AM
4-2-1 is a tri Y design , if you count the Y-sections there is 3 of them

and you gotta love those dumb arses giving you a bracket and the 03-05 J's do not have the hangers on the sub-frame , LOL


not that they worked to suppoirt anythin gon the eco or the 2.4







Re: Isuzu Performance Header
Tuesday, June 07, 2005 8:47 AM
680?!?! He should come to your house and install it for that. Did anyone dyno with that thing on too? what kinda gains?


Rich
Re: Isuzu Performance Header
Tuesday, June 07, 2005 9:24 AM
i have that header. my 96 didnt have the brackets for the down pipe hangers so i just welded some one.

4 years and trouble free.







Re: Isuzu Performance Header
Tuesday, June 07, 2005 10:04 AM
i have the one for the ecotec. got it second hand for $300 . fitment was good, it went in really easy. but i did have to get the motor mounts to keep the thing from hitting the crossmember whil under load. since then it has been good for me. i acktually saw an increas in gas milage until i put my exhaust on, then it went back to the way it was, maybe a tad less.



Re: Isuzu Performance Header
Tuesday, June 07, 2005 10:48 AM
Michael Groves - I noticed you have the Iperformance exhaust too, how's the performance with both of them?




Re: Isuzu Performance Header
Tuesday, June 07, 2005 3:10 PM
way overpriced



1989 Turbo Trans Am #82, 2007 Cobalt SS G85





Re: Isuzu Performance Header
Wednesday, June 08, 2005 12:09 AM
no complaints about mine!! Yes $680 was a lot but you get what you pay for. My father in law has built engines in the past and has been putting parts on my car while I've been overseas and he said it was very good craftsmanship



Re: Isuzu Performance Header
Wednesday, June 08, 2005 1:09 AM
Its even got a warrenty........ Right Jake?

I like the design, and the craftsmanship....... just a little to rich for my blood.




SPD RCR Z - '02 Z24 420whp
SLO GOAT - '04 GTO 305whp
W41 BOI - '78 Buick Opel Isuzu W41 Swap

Re: Isuzu Performance Header
Wednesday, June 08, 2005 1:18 AM
I have the i-Performance header for my 2.4L.. it's a very nice piece of work.... hard to compare to anything else out there... worth the price? probably not. but you gotta pay to play...

There are dyno sheets on the i-performance site.. <www.i-performance.biz>




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Re: Isuzu Performance Header
Wednesday, June 08, 2005 8:59 AM
yeah they have "A" dyno test , from a car that had alot of parts on it , not sure if the motor was built when the dyno test was done or not , but he had the grd intake on it , as well as other mods







Re: Isuzu Performance Header
Wednesday, June 08, 2005 9:00 AM
ya . Bill has been nice to me over the years.




Re: Isuzu Performance Header
Wednesday, June 08, 2005 9:38 AM
[quote=97cavie24ls(JDM cav sedan™)]yeah they have "A" dyno test , from a car that had alot of parts on it , not sure if the motor was built when the dyno test was done or not , but he had the grd intake on it , as well as other mods

When they compared the RKSport exhaust to theirs, the car they used was stock besides a MUFFLER on the stock piping, at least thats what they said on their website:

"We were lucky enough to find a volunteer locally, Lenny Kean of Wentzville, Missouri, who graciously donated the use of his 2001 Chevrolet Cavalier Z24 car for the testing. Lenny's car is basically stock, the only modifications being a fiberglass hood, Eibach lowering springs, and a polished stainless steel straight through type muffler spliced onto the stock piping..."

Here's the link aswell: IPerformance

Unless you are talking about a different dyno test. Otherwise, my bad.



Re: Isuzu Performance Header
Wednesday, June 08, 2005 10:24 AM
OH! i never noticed that that test car had a straight through muffler I need to do my exhaust right now. i have the muffler and the pipe just need to order the bends order will be placed tomorrow


see ya!

Re: Isuzu Performance Header
Wednesday, June 08, 2005 12:36 PM
Just remember every engine is different and any test is going to have some variance because no 2 cars are built the same so to make a claim based on one car is absurd and this test was done on a 2.4 very much different than an ecotec motor



1989 Turbo Trans Am #82, 2007 Cobalt SS G85





Re: Isuzu Performance Header
Wednesday, June 08, 2005 12:51 PM
Yeah I figured that, I'm not saying the power will be the same, all I really wanted to know in this thread was whether or not it was a 4-1 or a 4-2-1 design,, and then everyone else slowly changed the topic. To those that helped, I thank you.




Re: Isuzu Performance Header
Wednesday, June 08, 2005 9:07 PM
Yeah you get what you pay for but you'll only get so much power from a header. $680 is ridiculous. You can get a header and still have $300 or so left over to get a full custom exhaust setup (if you didn't have one). Also, I believe he made claims of higher #s than other places which were kind of off also. If you want 4-2-1ECO header, check out weapon-r's products. Go to www.definedparts.com for prices.



www.kronosperformance.com / 732-742-8837

Re: Isuzu Performance Header
Wednesday, June 08, 2005 11:59 PM
Rodimus Prime wrote:Just remember every engine is different and any test is going to have some variance because no 2 cars are built the same so to make a claim based on one car is absurd and this test was done on a 2.4 very much different than an ecotec motor
i know that my car is being held back because of the cat back. i need some more power for autocross.


see ya!

Re: Isuzu Performance Header
Thursday, June 09, 2005 6:43 AM
It's expensive but its completely bolt-on, you don't need to buy a cat, weld, or anything like that. Certainly its a header, but its also the cat and flex pipe, it's also 2.5 inches in diameter. Pacesetter, RKS, OBX, don't make headers that terminate in 2.5 inch piping.

i-performance claims their dyno was performed on a stock car, if it wasn't, I'd be upset if I did all that work for so little power gained. the stock exhaust put out stock numbers

sure it's only a header, and you can only expect so much from a header, but that view is short sighted, and dosn't look at the big picture. an engine is a system, and is only as strong as it's weakest link, you use combinations of parts to make an engine

and utilizing bends for a header? you want it to be free flowing; bends are bad for flow

I see the only people complaining about this product are ones who don't own it



Re: Isuzu Performance Header
Thursday, June 09, 2005 8:29 AM
looks as if they tested another car , cause im only aware of the 1 car that was tested

but then , i have not been to their site , cause bill ruined any chance of me buying their products , with all the emails he sent me as well as the others out there , anytime a discussion about their product came up , it was very anoying

i had wanted to get their stuff before that point

also there have been people here that had trouble with trying to get warrenty from them







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