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Old Feb 22, 2010 | 10:06 PM
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Just got these MHP LT headers in the mail.

Gonna install them tomorrow and dynoing it on Saturday. My car will be running on a Kleemann K2 tune, if anyone's wondering.
















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Old Feb 22, 2010 | 10:14 PM
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Is it just the photos or are those headers rough and daggy on the inside welds?

.
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Old Feb 22, 2010 | 10:15 PM
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Can't wait to see (and hear) what kind of power it puts down!
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Old Feb 22, 2010 | 10:26 PM
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Effffffin Cool!!!!!. Post some vids after the install....A few drivebys wouldnt hurt too
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Old Feb 22, 2010 | 11:00 PM
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Will be waiting to see the results.
Last edited by alqamzi; Feb 22, 2010 at 11:03 PM.
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Old Feb 22, 2010 | 11:04 PM
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Originally Posted by sjhugh
Is it just the photos or are those headers rough and daggy on the inside welds?

.
i was thinking this as well it looks like there is a long hole in the welds. Anyways shouldn't you keep the tune MHP as well so they are matching with the LTHs or is Kleeman going to tune them to the headers with a custom tune?
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Old Feb 23, 2010 | 12:43 AM
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They finally cleaned up the welds at the flanges. Are you installing it yourself or having it done?
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Old Feb 23, 2010 | 12:44 AM
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headers are the trick to go fast. trust me does are real special.

Sry fellas I use my iPhone and it sucks sometimes.
Last edited by mthis; Feb 24, 2010 at 01:12 PM.
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Old Feb 23, 2010 | 12:45 AM
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Originally Posted by mthis
. . . trust me does lt's are special.
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Old Feb 23, 2010 | 12:47 AM
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Originally Posted by superlubricity
English is his second language. Really. By now, most of us here get the gist of what he is saying.
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Old Feb 23, 2010 | 12:48 AM
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Originally Posted by Sincity
English is his second language. Really. By now, most of us here get the gist of what he is saying.
Got it.
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Old Feb 23, 2010 | 01:38 AM
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Originally Posted by JonMBZ
i was thinking this as well it looks like there is a long hole in the welds. Anyways shouldn't you keep the tune MHP as well so they are matching with the LTHs or is Kleeman going to tune them to the headers with a custom tune?
They are a bit rough, but there are no holes in the welds. As for the tune, I originally had K1, so I went ahead with the K2. The K2 flash should work with most aftermarket headers.


Originally Posted by superlubricity
Can't wait to see (and hear) what kind of power it puts down!
Me, too!


Originally Posted by REDSRT
Effffffin Cool!!!!!. Post some vids after the install....A few drivebys wouldnt hurt too
I'll try...
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Old Feb 23, 2010 | 03:49 AM
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Originally Posted by avengerboater
They are a bit rough

I’ve always installed high quality headers on all my cars and with that they have always been as smooth as a baby’s bum. Would the roughness cause any turbulence or is it miniscule and have no effect.

.
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Old Feb 23, 2010 | 03:59 AM
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Originally Posted by sjhugh
I’ve always installed high quality headers on all my cars and with that they have always been as smooth as a baby’s bum. Would the roughness cause any turbulence or is it miniscule and have no effect.

.
From what I've inquired, they have no, or at the very most minuscule effects on the flow. We'll see when I put the car on the dyno this Saturday.
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Old Feb 23, 2010 | 04:07 AM
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Am going to do the same setup you are doing as soon as i sell the kleemann headers.K2 ecu +MHP HEADERS.
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Old Feb 23, 2010 | 04:31 AM
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Originally Posted by avengerboater
From what I've inquired, they have no, or at the very most minuscule effects on the flow. We'll see when I put the car on the dyno this Saturday.


Fair enough, I must admit I don’t know. I’m only aware of paying for port matching and super smooth headers to ensure as perfect as possible flow characteristics when I use to be serious about chasing horsepower.

I’m interested to see what the dyno says. Still without back to back comparisons with other headers, it probably won’t say much unless there is a major problem. Goodluck, I hope they perform well for you.

.
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Old Feb 23, 2010 | 08:08 AM
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These headers work very well with the Kleemann software. I picked up 44/32 in the transition from shorty headers. Best ET dropped from 11.99 to 11.59, best trap speed went from 117.19 to nearly 122. That is serious real world performance over stock and my K2 setup. The car is no nonsense loud at wot but more civilized when cruising.
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Old Feb 23, 2010 | 02:09 PM
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Congrats, can't wait to see how they perform.

Quick question, from the pictures, it looks like there are at least 5 places for o2 sensors. I thought we had 4 o2 sensors (pre and post cat converters). What are the extra hole(s) used for?
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Old Feb 23, 2010 | 02:41 PM
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Originally Posted by clktoc63
Congrats, can't wait to see how they perform.

Quick question, from the pictures, it looks like there are at least 5 places for o2 sensors. I thought we had 4 o2 sensors (pre and post cat converters). What are the extra hole(s) used for?
Wideband o2 sensors for tuning/data logging.
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Old Feb 24, 2010 | 03:04 AM
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pardon me...but how much are you paying for those!!!
the insides are well....mangled
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Old Feb 24, 2010 | 03:47 AM
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Originally Posted by Zod
pardon me...but how much are you paying for those!!!
the insides are well....mangled
yah and the welds at the flanges...are meh. But hey if they make HP and they last the lifetime of the car and you don't care about how it looks (they're hard to see anyways) then you're good to go.

Can't wait to see and hear how they perform on saturday!
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Old Feb 24, 2010 | 11:36 AM
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Originally Posted by Zod
pardon me...but how much are you paying for those!!!
the insides are well....mangled
It's more of the angle the pictures were taken and the low lighting. If you look at the pictures with the flash, the insides of the primaries are smooth after the welds.
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Old Feb 24, 2010 | 01:22 PM
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Originally Posted by Sincity
English is his second language. Really. By now, most of us here get the gist of what he is saying.
that's true lol. I'm also at work 14hr a day so I'm on my iPhone and this thing got a mind of it's own sometimes lol. I type something and it changes it to something else. Wierd huh. Hey I do write and read 3 languages .
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Old Feb 24, 2010 | 04:20 PM
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Originally Posted by RLx02
yah and the welds at the flanges...are meh. But hey if they make HP and they last the lifetime of the car and you don't care about how it looks (they're hard to see anyways) then you're good to go.

Can't wait to see and hear how they perform on saturday!
Am sorry, I see your point in ''function over form'', but those look like an off the shelf product of any normal exhaust Shop.

You have to also take into consideration the manufacturing costs with the final product you receive

I ask this because price determines how one should expect the product should be...

it is already well known that if you want power out of the 63 LT's are the way to go

so I ask again how much are these going for?
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Old Feb 24, 2010 | 04:26 PM
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Originally Posted by Zod
so I ask again how much are these going for?

IIRC, they are a tad under $5k.
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