Gen 2 Headers are teh r0xx0r! Dyno Results!
Originally Posted by E55AMG2
Its not worth the $400 difference, they dyno within 1hp of each other. Check the All Motor forum
I have never seen a comparison on the SAME car to suggest that.
I'm pretty sure both headers come within a few whp of each other....Jimmycapp did 232whp with HS and fezzik's did 235whp on cattmans....I can't think of any other #s off the top of my head...but I know majority of them dyno within a few hp from each other...
Remember, this is comparing Gen1 versus HS....the Gen2 seem to dyno on the low side compared to Gen1 & HS
Remember, this is comparing Gen1 versus HS....the Gen2 seem to dyno on the low side compared to Gen1 & HS
Originally Posted by Kevlo911
I agreee 

Originally Posted by rbrown81
Sure, they are shiny. But I prefer power. Besides, im going to wrap my gen2's in thermal wrap soon anyhoo.... cool that engine bay down some.
Originally Posted by rbrown81
Sure, they are shiny. But I prefer power. Besides, im going to wrap my gen2's in thermal wrap soon anyhoo.... cool that engine bay down some.
It looks like the runners are longer on the HS.
The Gen1 catmans rust and crack.
runners are longer, the collector on the gen 1 looks like crap also. I think the new gen2s are S/S. ****, they better be for 1000.
Originally Posted by Kevlo911
It looks like the runners are longer on the HS.
The Gen1 catmans rust and crack.
The Gen1 catmans rust and crack.
Those aren't the same HS headers that I have installed several sets of. It appears they've made some changes to them.I wonder if they actually fit correctly now. My money is still on the CM headers for power though.
what fitament issues did the older HS ones have? E55AMG2, you have any fitament issues?
Originally Posted by SR20DEN
Those aren't the same HS headers that I have installed several sets of. It appears they've made some changes to them.I wonder if they actually fit correctly now. My money is still on the CM headers for power though.
Joined: Apr 2003
Posts: 2,586
From: the OC & Silicon Valley
Originally Posted by steven88
I'm pretty sure both headers come within a few whp of each other....Jimmycapp did 232whp with HS and fezzik's did 235whp on cattmans....I can't think of any other #s off the top of my head...but I know majority of them dyno within a few hp from each other...
Remember, this is comparing Gen1 versus HS....the Gen2 seem to dyno on the low side compared to Gen1 & HS
Remember, this is comparing Gen1 versus HS....the Gen2 seem to dyno on the low side compared to Gen1 & HS
well, we can agree that they are within a few hp of each other, people have to justify if the extra $$ is worth it.
and, like i have read here, all header equipt cars need an SAFC-II to tune. people have gotten some nice #'s with them..
and, like i have read here, all header equipt cars need an SAFC-II to tune. people have gotten some nice #'s with them..
Originally Posted by joebangaa
mr new mexico is making 233whp auto right? and harmbone is doing similar numbers in his 6spd w/ hotshot... there's a lot of numbers out there just gotta look for yourself. i'm interested to see what nmex is gonna pull after tuning...but for the most part gains appear very similar
Originally Posted by rbrown81
Sure, they are shiny. But I prefer power. Besides, im going to wrap my gen2's in thermal wrap soon anyhoo.... cool that engine bay down some.
I thought bout wrapping my HS headers, but in reality I never seen any gains from doing so on my SE-R so I left them alone. Plus early HS headers (back like over 10 years ago) used to crack on welds around the colector merger, and I do not wanna by changing mine out do to any cracking if that was to happen.
New HS headers look like the tubing is smaller diameter, flanges are thicker at the primarys, and finish is alot brighter- plus they added a little HS badge on the primaries. I think I got a pic of my HS headers un-installed somewhere. I will try to post it. I wonder if all the fitment issues associated with installing HS' on a 3.0L have been worked out....
New HS headers look like the tubing is smaller diameter, flanges are thicker at the primarys, and finish is alot brighter- plus they added a little HS badge on the primaries. I think I got a pic of my HS headers un-installed somewhere. I will try to post it. I wonder if all the fitment issues associated with installing HS' on a 3.0L have been worked out....
Originally Posted by BlackBIRDVQ
Plus early HS headers (back like over 10 years ago) used to crack on welds around the colector merger
I think everyone wrapped their SE-R headers back then, only to learn that it was a terrible idea.
Originally Posted by joebangaa
wow i really like the flanges on the HS a lot more than the cattman. it just seems to be a quality product
Originally Posted by SR20DEN
Bling does not make Horsepower. Do you want bling or do you want power?
so now its a matter of paying for a pair of BLING good hp header....and a pair of "not so bling" good hp header
Joined: Apr 2003
Posts: 2,586
From: the OC & Silicon Valley
lol cmon now...i know the flanges have nothign to do with the gaining of power, but i mention it only because price has been a topic that's almost always thrown around when comparing these headers... my point was if the design isn't a night/day difference and the flanges are uglier and probably cheaper on the cattmangz...where does the extra money go? i know HS is all in-house, and i totally support Brian Catts but the only thing that seems to be giving him any business at this point is any lingering fear (and most non header owners are stricken by this!) about HS units not fitting right..
Originally Posted by joebangaa
any lingering fear (and most non header owners are stricken by this!) about HS units not fitting right..
Originally Posted by Puppetmaster
Not really, because Whazzzzup recently installed his new Hotshots and I believe he said they fit with no issues. I think the "fear" is really that the Gen II headers were supposed to give an additional 10 whp under the curve over the Gen I headers, which were already supposed to yield a better power curve than the Hotshots. Rich's curve with these Gen IIs is below Jimmycapp's (Hotshots) at every point, but Rich is running much leaner at every point as well, so I don't think that's a good ndication at all. I'll leave comments on that to the people who know more about that stuff.
here's a dumb question, looking at ordering a UPD, and 2nd Gen Headers, a
But Where would you get a SAFCII? How much you looking to spend?
I already get Intake, Straight pipe, colder plugs, (Possibally Nitrous later, Headers first)
When I done I hopping to get close to the 350-400 range, that would make me happy.
But Where would you get a SAFCII? How much you looking to spend?
I already get Intake, Straight pipe, colder plugs, (Possibally Nitrous later, Headers first)
When I done I hopping to get close to the 350-400 range, that would make me happy.
Originally Posted by siren001
here's a dumb question, looking at ordering a UPD, and 2nd Gen Headers, a
But Where would you get a SAFCII? How much you looking to spend?
I already get Intake, Straight pipe, colder plugs, (Possibally Nitrous later, Headers first)
When I done I hopping to get close to the 350-400 range, that would make me happy.
But Where would you get a SAFCII? How much you looking to spend?
I already get Intake, Straight pipe, colder plugs, (Possibally Nitrous later, Headers first)
When I done I hopping to get close to the 350-400 range, that would make me happy.




