Toadster

up 34RWHP and 32ft-lbs from my prior dyno

stockC43

Nice kleeman's are my next mod

Tx AMG

Nice, how does the old butt dyno feel after the headers?

HeissRod

Congrats, Toad

Sir-Boost-a-Lot

iTrader: (1)

Nice gains, you can probably feel 35whp worth of change

55kAMG

Nice gains, should have my bosh 010 pump, and my FTP H/E in the next couple of days, then im getting E/C supercharger pulley and ecu tune, with these 4 mods will i feel the diff from stock? or will it be faster but feel the same?

Toadster

honestly at first (a few months back) it lost the bottom end, but with this retune, dang it's a monster!!!

Toadster

those were my first mods - definitely feel a difference!

ss.dna02

I can tell you that you will definitely feel it !

HeissRod

Definite change in how it feels

JoeNobody

is the AFR roughly 13? Am I reading that right?

MindBend

Anyone have a comparison between the short-tube headers and long ones?

99lightning

I know with my mbh no loss down low 38hp gain at 3200rpms make sure you have enough fuel down low.

berti_00

1k 34hp Kleemann. (WIN)
3k 38hp MBH

4hp extra = 2k extra... Hmmm

Congrats Todd, good numbers

MindBend

Wow...if true, that's a wake-up call.
Kleemann=lesser quality (mine cracked on other car).
Remove and re-install=$2K+ (real PITA!)

99lightning

and that was 50hp up top point was that car looks like it needs some fuel down there

novae500

nice gains. i paid $2100 for my mbh headers. Just was a pain in the #(!$ w/customer service and communication.

Style_Front

Theres enough guys that have go fast parts that could do a great comparison if they wanted to take the time to get organized. Get a few cars with different header combos and swap all the headers out on a single car to see what the performance differences are for a comparo.

3 dyno runs with stockers, 3 with kleeman, 3 with mbh, and whoever else joined the party. thats what I loved about the DSM community. One time a bunch of guys got together and ran a comparo on like 8 different intake manifolds all in the interest of information gathering and sharing with the community.

MindBend

Who would be insane enough to swap them out just for a test? They are a LOT more difficult to get to than a DSM car.

For me, there's things that are important, as well as the max HP:

1. How's the entire torque-band effected?
2. Quality. What kind of steel used? Will they last?
3. Fit and finish. I do not have a welder and tube-bender
4. Who's making them? (some good ol' boys with a passion here in the US or some ladies in a factory overseas...yep, I'm old-fashioned and care about our economy).
5. Customer service: yes, if I have a problem or issue, I want to be able to talk to someone TODAY!
6. Delivery. Can I actually expect to get them when promised? (don't wanna hear about "my cat died" or "My sister got impregnated by the neighbor kid..")

And that's all for now.

2319

I have had my kleemans on for about 6-8 months. They are still in great shape and I have not had a single issues with them. They fit perfect when I installed them. And the difference in power was definitely noticeable even without a tune. After the tune, you could really feel the difference in power. Plus they made my exhaust sound great! To me, they have been a nice modification.

HeissRod

Were you running flexpipes?

berti_00

+1 had em on for Almost 2 years and still perfect

biggking

Where'd you get it tuned? I know a guy off Folsom Blvd that tunes supras but when I asked about E55s he wasn't too keen on tuning mine.

Style_Front

Just saying it would be great to see overlays from the same car on the same dyno on the same day. And I don't think it's close or even bordering insanity to think it could be done.

justinwrock

I'd do it if I still had an E55.

Swapping headers isn't too terribly hard.