Well, my car turned the 100k mile mark and the cats started rattling, so I was FORCED to upgrade the cats to something better If you need new cats, that means you NEED new headers too right?

Also, my idler pulley bearings were starting to squeak too. So, I had to contact Shardul for a 4pc ASP pulley and SC belt wrap kit

I have always wanted a set of MBH long tubes, but found it extremely hard to justify spending $$$ for a set of headers. After considerable research, I narrowed the header purchase down to Kleeman, American Racing (ARH), and MBH/Dyno-Comp headers.

I was attracted by the Kleeman bang for the buck, but quickly found that after adding cats, mid-pipe, and the other odds and ends that I was not too far from spending MBH header type of money.

I considered the ARH headers after hearing many positive reviews from the Z06 community years ago, but found that many who installed them on E55's had fitment issues. I was not willing to go through any headaches dealing with less than perfect fit, especially since they are about as expensive as the MBH's

I called up Mike at MBH and ordered the headers and was told there was about a 2 week build time. About 4 weeks later they arrive. Thanks Mike for putting up with my phone calls and PM's looking for an update. The headers arrived and it was like Christmas morning. They are truly a work of art and it is too bad the only time they will be seen is when the car is on a lift

I have to thank Jason, Tony, and the rest of the crew at BIP for providing top notch work and customer service. They surpassed my expectations to say the least. I dropped the car off early one morning and they worked on the wagon all day installing the headers, belt wrap kit, and retuning the ECU.

My baseline dyno on the "heart breaker" Dyno Dynamics dyno in 12/11 was 358rwhp/435rwtq. https://mbworld.org/forums/w211-amg/...e-results.html

The BIP tune in 12/11 produced 32rwhp/35rwtq bumping me to 390rwhp/470rwtq

The addition of MBH long tubes, belt wrap kit, and retune boosted me to 451rwhp/508rwtq for a gain of 61rwhp/38rwtq over the BIP tune and 93rwhp/73rwtq over stock

At idle & cruising on the highway, it is almost impossible to tell the car does not have a stock exhaust system under it. Put your foot in the throttle, and the car really comes alive You can feel a bit more rumble from the headers at your feet as the car is finally able to exhale and breathe properly while the noise created gives you permagrin at the same time. I am not sure what the car sounds like from the outside (I will have to take some GoPro videos), but it is awesome from the driver's seat!

If you are on the fence about headers, contact MBH and ORDER THEM NOW!

Here is my stock to BIP tune graph in 12/11


Here is my updated graph with MBH headers, belt wrap kit, and retune


Here is my updated graph with MBH headers, belt wrap kit, and retune (including A/F ratio)


Once again, thanks to Shardul for the continued education on mods and for providing the ASP pulley and SC belt wrap kit. I am looking forward to the new clutchless SC pulley
https://mbworld.org/forums/e55-amg-w...13-motors.html
https://mbworld.org/forums/vendor-an...y-kit-55k.html

Thank you to Mike at MBH for selling us a top notch set of headers that could double as artwork good enough to hang on any wall. https://mbworld.org/forums/w211-amg/...deal-date.html

And thanks again to Buckhead Imports Performance (BIP) for the exceptional service and expertise.
http://www.buckhead-imports.com/performance.html

My best time at the strip is 12.40 at 112mph and my best 1/2 mile run was @138mph, I am looking forward to hopefully breaking into the 11's in the quarter mile and 140+mph in the 1/2 mile. Fingers crossed

 

Nice wagon and looks like Tony tuned her great!! I should be over to BIP on Friday for a trunk tank.

 

Great review and beautiful Estate. Agree completely with your MBH header observations. You'll find you'll leave the radio off for a while and crack the windows to hear the note.

 

Nice. It's a pain to wait for status of the headers. But once they arrive, def worth the long wait. Def sounds stock until you step on it or from a start doesn't sound stock at all

 

very nice - I'm sure you'll be AMAZED by the pulley - especially with the headers... you're on track for a 500RWHP car

 

Can you post your AFR chart?

 

It's at the bottom of the last photo

 

Nice numbers


Thank you FASN8N

 

The ultimate sleeper. Very cool!

 

You guys deserve more credit over there but thats ok we know whos got em running good.

 

Thanks for the props brotha. Your sled has such a simple combo but yet puts out healthy numbers.

The car holds power very well up top, I must say. No doubt she will deep into the 11's this fall

 

Do the wagons put down less HP than the sedans? 358 sounds awfully low (yes, granted, dynos are all different etc. but that seems very low, even for a heartbreaker - I put down 396 on a heartbreaker, and 428 on a dynojet).

Just curious if the wagons are detuned or have anything different than the sedans?


EDIT: Those headers are definitely awesome, the pictures look great but I bet they don't do them justice!

 

I think the wagon is exactly the same as the sedan. Craig can chime in, but I think his baseline was pretty close to my dyno dynamics numbers.

I put down 433RWHP/490RWTQ as a baseline on a dynojet pretty close to the same time I did the dyno dynamics baseline run too

 

Those are some real nice gains considering they're on a DD dyno in normal/shootout. You'd be well into the 500's on a dynojet now.

 

My car put down 348rwhp on the exact same dyno bone stock

 

love to hear a sound clip

 

Nice numbers!

 

Thanks for the compliments You are right, I have had my windows down for the past couple of days!

Good things come to those who wait

I think an 82TB and the smaller pulley should do the trick

Thanks Shardul for constantly educating us and producing excellent mods



I think they treat their customers like family, good guys

It might be time for some drag radials or a limited slip diff upgrade



I will strap the GoPro to the car and take some clips. That is if it ever stops raining here!

Thanks I look forward to hopefully bolting one of your SC kits to my car in the future

 

nice

 

You bringing this beast to Wannagofast next month 1/2 mile?

 

Yessir, signed up to race on Saturday and spectate on Sunday.

 

Us guys up in the North East would love to have a reputable shop, who is familiar with these cars that can tune and dyno our vehicles like you Atlanta, Texas and Cali guys do. All we have is TTM aka Taking The Money lol. You guys r lucky. Wanna see sum nice #s and quater miles. Keep up the good work fellas.

 

come out to pa i have a dyno and another dyno that im involved with down the street from me i can data log your car for you and send info to tony to get your tune all worked out.

 

I can vouch for that. I also have the MBH headers and I've gotten more than a few comments from friends following me that they love the sound of that setup.
Congrats on the newfound power!

 

HAHA! Shawn! Its Amir. Long time no see brother! Looks we both left the Corvette and Audi game and ended up here with W211 AMG Street Brawlers.