W211 AMG Discuss the W211 AMG's such as the E55 and the E63

Weistec E63 w/o headers

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Old Jan 22, 2013 | 10:27 PM
  #1  
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2011 E63, 2013 CLS63
Weistec E63 w/o headers

I'm just wondering how important headers are when installing a Stage 3 Weistec SC on the M156. I know they say free flowing exhaust required but is it possible to install the Stage 3 without an exhaust or headers? I know you'll lose power but the M156 is a LOUD and raspy engine with headers and a free flowing exhaust.
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Old Jan 22, 2013 | 10:54 PM
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Running high flow exhaust with our Stage 3 system is a requirement. The cylinder temperatures and pressures become extremely high without it. The factory exhaust manifold is a bottle neck in the system. Please let us know if this helps. Thanks!

Weistec Engineering
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Old Jan 22, 2013 | 11:05 PM
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OK so when you say free flowing are you talking catback or are you saying headers are a must too?
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Old Jan 22, 2013 | 11:14 PM
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Originally Posted by e500slr
OK so when you say free flowing are you talking catback or are you saying headers are a must too?
Exhaust manifold = header.

A cat back is going to be useless to help with flow and temp, they are just good for sound.

Originally Posted by Weistec
(...)The factory exhaust manifold is a bottle neck in the system.(...)
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Old Jan 22, 2013 | 11:44 PM
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Exactly what timeToy said. Cat back exhaust systems do not really hinder flow unless you are trying to make quite a bit of power (over 800 hp).

A long tube header is optimal and will run the best with our systems, and there are many companies to choose from. You can run high flow cats (100 cell) to muffle the sound, but these cars are naturally loud.

Our Stage 1 system is however designed for a stock vehicle. This increases the power quite a bit yet you can maintain the factory exhaust system. Please let us know how we can assist from here. Thank you!

Weistec Engineering
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Old Jan 23, 2013 | 12:51 AM
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Why would you want the stage 3 if you aren't interested in running headers? It just seems like it would be a waste regardless of the fact that it's necessary.
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Old Jan 23, 2013 | 04:00 AM
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I was thinking for it to be a super-sleeper. I know an AMG is not a sleeper period but still, once you get headers and high flow cats it sounds like a race car. Weistec what's the power potential like with the Stage 1 and no exhaust?
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Old Jan 23, 2013 | 04:24 AM
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Ya, I can understand that. If you wanted the power, but still wanted a sleeper why not wrap the crap out of the headers(it'll quite them down) and run a pre-muffler muffler. It's just a thought, but I think you could achieve what you're looking for and still go stage 3 with headers, you'll just have to do a little extra work.
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Old Jan 23, 2013 | 09:13 AM
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If you want it quieter swap for E55 mufflers. They are the most quiet of the bunch. Or maybe S-class. But you can quiet her down from then LTs back with out much reduction in flow. My car with LT, HFC, Xpipe into stock resonator and mufflers (E55) is very very tame until WOT of course. But that's when you want it to bark.
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Old Jan 23, 2013 | 09:41 AM
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That thing is going to be real loud can t to hear it
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Old Jan 23, 2013 | 10:43 AM
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do they even mention the transmission in all this? I know the 7spd is only rated for like 546lb/ft of torque, which is managable with typical intake/exhaust upgrades, but The stage 3 is talking about being well north of 600, is there no worry of blowing these things up left and right if anyone actually drops 15k on the kit?
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Old Jan 23, 2013 | 12:50 PM
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Originally Posted by e500slr
I was thinking for it to be a super-sleeper. I know an AMG is not a sleeper period but still, once you get headers and high flow cats it sounds like a race car. Weistec what's the power potential like with the Stage 1 and no exhaust?
Our Stage 1 system is rated at 637 Horsepower and 560 ft-lb of Torque. This system is truly a sleeper and makes more than anything you can bolt on, such as long tube headers, tuning, air boxes, etc.

Originally Posted by newlyAMG
do they even mention the transmission in all this? I know the 7spd is only rated for like 546lb/ft of torque, which is managable with typical intake/exhaust upgrades, but The stage 3 is talking about being well north of 600, is there no worry of blowing these things up left and right if anyone actually drops 15k on the kit?
We have made about 650 lb ft at the wheels with the stock 722.9, but we do highly recommend our bulletproof transmission upgrade when installing the Stage 3 system. The 2012+ MCT can handle the power of the Stage 3 system without a problem.

Our Stage 1 and 2 systems work great with the stock transmission, and these kits we recommend for those that want bolt on easy power.

Please let us know how we can assist from here. Thank you!

Weistec Engineering
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Old Jan 23, 2013 | 01:03 PM
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i wish you guys would have made the throttle body just like you did on the C63's to retain the OEM air filters and the engine covers etc
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Old Jan 23, 2013 | 01:24 PM
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Originally Posted by berti_00
i wish you guys would have made the throttle body just like you did on the C63's to retain the OEM air filters and the engine covers etc
It just wasn't possible to fit all the parts in such a tight package. Plus the M156 (C63's) have much larger air boxes that can support the added power. The original E55 air boxes and inlets are a restriction with the stock supercharger system.

Weistec Engineering
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Old Jan 23, 2013 | 01:33 PM
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Originally Posted by SterlingE55
If you want it quieter swap for E55 mufflers. They are the most quiet of the bunch. Or maybe S-class. But you can quiet her down from then LTs back with out much reduction in flow. My car with LT, HFC, Xpipe into stock resonator and mufflers (E55) is very very tame until WOT of course. But that's when you want it to bark.
++ to Sterling. The average person sitting next to me at a light has NO idea I have LT headers. I have the xpipe also (no drone) with stock mufflers. Very happy I went this way.
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Old Jan 23, 2013 | 02:37 PM
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Originally Posted by Weistec
Exactly what timeToy said. Cat back exhaust systems do not really hinder flow unless you are trying to make quite a bit of power (over 800 hp).

A long tube header is optimal and will run the best with our systems, and there are many companies to choose from. You can run high flow cats (100 cell) to muffle the sound, but these cars are naturally loud.

Our Stage 1 system is however designed for a stock vehicle. This increases the power quite a bit yet you can maintain the factory exhaust system. Please let us know how we can assist from here. Thank you!

Weistec Engineering
Thus invalidating the CARB approval, correct? If I am not correct, and you can install me a CARB approved system, lety me know.
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Old Jan 23, 2013 | 03:26 PM
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About how much does the Stage 1 kit cost? And what is included? Sorry, newbie here.
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Old Jan 23, 2013 | 10:39 PM
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This is for a C63 but sounds good and I think has LTs, it's the only one I've seen with no rasp
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Old Jan 31, 2013 | 10:42 PM
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Originally Posted by Weistec
Our Stage 1 system is rated at 637 Horsepower and 560 ft-lb of Torque. This system is truly a sleeper and makes more than anything you can bolt on, such as long tube headers, tuning, air boxes, etc.



We have made about 650 lb ft at the wheels with the stock 722.9, but we do highly recommend our bulletproof transmission upgrade when installing the Stage 3 system. The 2012+ MCT can handle the power of the Stage 3 system without a problem.

Our Stage 1 and 2 systems work great with the stock transmission, and these kits we recommend for those that want bolt on easy power.

Please let us know how we can assist from here. Thank you!

Weistec Engineering
Is the 2012+ MCT stronger than the 2010 MCT? Talking E63 (not C63).
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Old Feb 2, 2013 | 06:25 PM
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So turning it around, what if you do have those needed mods and more?

My car has Renntechs long tube headers, highflo cats, throttle body, airbox, and software, plus their lsd os giken diff.

Will the supercharger bolt up with the tb and airbox, and do you already have a tune already incorporating all these parts that works safely and consistently?

What kind of power could I expect out of the stage 1, 2, and 3 systems based on the above and the parts cost?

Thanx
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