Need opinions cause I cant decide
Option 1, 599+ shipping for a set of mid length EC headers and then bout 250 to 300 to have the exhaust shop mate it to the midpipe. Cons to this cant revert back to stock very easy, no warranty or guarentee, have to convince an exhaust shop to do so being the emissions requirement for removing cats in Utah not to mention getting it to the exhaust shop once i have the manifolds installed. Pros very inexpensive, from what Ive read modded E55s are getting round 34 to 40 rwhp with kleemann and EC mids and I can have them on their way tomorrow.
Option 2, Black fri sale going on over at MBH for 1890 plus 500 for a midpipe for a total of 2400.00. Cons looks like 2 weeks before they can be shipped out (and need something soon reg is up and crack in manifold is failing emissions) price is another factor I have some xmas modding money coming from the lil lady so would have to put the rest on the card and hear it from the wife lol .... Pros well from what I have seen and read in research modded E55s are getting 40 more rwhp over shorty headers, come with a lifetime warranty, comes with a 40 rwhp guarentee, I hear their fit is perfect, can be reverted back to stock very easily, full bolt in system so no messing with the exhaust shop, and can resell easily for a nice price.
Option 3, Go with one of the ARH copy cat ebay systems out there for 1200 to 1400 plus shipping. Cons not the best fitment or finish, rubbing issues, cracking pipe issues, no warrentee or guarentee and material selection isnt top notch. Pros avaliable now can get soon as well, price is pretty much between the 2, full bolt in system no messing with the exhaust shop,
Option 4, .... other suggestions
This is on a daily driver and my mods are below in my sig but if its not showing up for those on mobile ..... 76mm SC pulley, VRP superflo pump and heat exchanger, VRP BWK with HD green belt, UPD dual idler and tensioner and pulley, 06 part # 580 supercharger, ported and welded snout with 82mm TB, Race IQ ecu tune, EC TCU tune.
Would love to hear from those with experience with any of these systems and anyone that went from mids to LTHs or MBH headers and what their experience was with that as well
Last edited by E55amg0220; Nov 23, 2017 at 05:36 PM.
Everyone will have an opinion on HP, quality, how they fit...etc.
If I had to start from the beginning I would use the MBH and have a really nice set up. Check out their site you will see for yourself. My car has ARH now, they were on there when I bought the car. They seem nice and sound great, but one issue is slight rub at the steering shaft that I will be addressing soon. From what I understand that issue is now resolved with the newer ones.
Keep in mind removing cat's is meant to add 12whp each. So if you take out primaries and secondaries + add a x-pipe (supposedly good for 8hp) like me you get 34 odd for the Kleeman's + 20 for the secondary replacement. 54whp supposedly. I'd talk to some ricer drivers in your area and find where the pay to pass emissions place is, that's what I did here in NZ.
The advice I have seen on this forum time and time again is to compare the additional cost of MBH to other mod's you're missing from your car. Which gives more HP for $.
But if money is no issue, MBH are the best.


An yet I come across this lil deal that I still cant believe, it looks very nice the welds look amazing from what I can see ..... comes with an Xpipe and flex pipes they are said tio be 321 stainless steel and i honestly cant believe the price shipped they come in at 650.
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Yeah I have been doing alot of research and looking and I think is what I am gunna have to do ..... do it right and do it once .... dont want to get mids and then regret not getting the MBH and then go back and do it again cus i didnt just get the best ones to begin with
the world knows Chinese steel has been know to be among the worst available. On the flip side it's dirt cheap. In the case of headers it seems the majority of header failures are import Chinese stuff.
That brings us back to the 321 stainless steel Chinese header or any 300 series stainless header from China. Why is it these 300 series stainless headers from China fail at what seems like a 20-1 rate vs American made 300 series headers? I'm sure one of the answers to that is (and I stress "one of" because there is more than one reason) the headers claiming to be some form of 300 series stainless steel is not a 300 grade stainless or it's equivalent.
the world knows Chinese steel has been know to be among the worst available. On the flip side it's dirt cheap. In the case of headers it seems the majority of header failures are import Chinese stuff.
That brings us back to the 321 stainless steel Chinese header or any 300 series stainless header from China. Why is it these 300 series stainless headers from China fail at what seems like a 20-1 rate vs American made 300 series headers? I'm sure one of the answers to that is (and I stress "one of" because there is more than one reason) the headers claiming to be some form of 300 series stainless steel is not a 300 grade stainless or it's equivalent.
Last edited by oneslow55; Nov 26, 2017 at 12:03 PM.
So unless you have some secret information that even XS Power doesn't know, they are Project B5 headers that they bought in bulk and are selling on ebay.
Unless you are just commenting on the length portion of the comment
[QUOTE=oneslow55;7320808mbh will not make 40 over mids maybe 15 whp max[/QUOTE]






















