Speedriven1

Made from high-quality stainless steel and designed to be direct replacements for the factory components, these new, lightweight, high-flow performance downpipes from Speedriven deliver serious performance gains without compromising the sound quality of your V12 Mercedes.

BUY IT ONCE

Speedriven developed these downpipes to provide a significantly more exhaust flow than the factory units. This improved flow delivers a noticeable increase in horsepower, torque, and throttle response across the RPM range- but there’s more to these downpipes than a simple, “better than stock” upgrade. Speedriven developed these downpipes to provide sufficient airflow for even our 800+ HP billet-wheel turbo packages.

In other words, you can buy the Speedriven high-flow performance downpipes for your stock Mercedes V12, and enjoy them for the life of the car- whether that means leaving it stock, or building up into a record-running track weapon. $1250 USD for track/test pipes, $1800 w/ OBD compliant 200-cell cats.

PrecisionEngine

Speedriven - are you still honoring this pricing ? If so, I would like to order a set.

Thanks,

P.M.

Speedriven1

PM sent.

ItalianJoe1

Anything for a w215/w220? Package deal on two sets of pipes?

Speedriven1

Yes, we do have pipes for the W215/220, and yes- would be open to that. Send me a PM or email info@speedriven.com

PrecisionEngine

I stopped in today to meet Jo and the Speedriven folks and pick up my down-pipes. Being a part of this community for a few years and witnessing first hand some of the bad press Speedriven has received - I thought it was necessary to say a few words:

Great guys to deal with. I showed up unexpected and was treated as as a scheduled customer. They answered all my questions, even those unrelated to down-pipes.

In summary, if their products or service is of your interest, don't hesitate to give them a chance.

Speedriven1

Thanks, man! I'm not sure what bad press you're referring to- but everyone who puts themselves out there has bad press. It's part of the game, and people believe what they want to believe. You're welcome back ANY time.

PrecisionEngine

Agreed. And that's why I chose to comment. You guys have treated me with the up most respect. Look forward to building a great relationship and hopefully an great SL.

Thanks again!

Speedriven1

They look pretty good with the cats in, too!

BlownV8

The downpipes are nice. Have them on my SL.

boostd

Are those what I think and hope they are?

Speedriven1

BlownV8

Your downpipes?

boostd

I think so.

Speedriven1

Indeed! As soon as the intercoolers are back, they'll get boxed and shipped.

Jan T

Since these seem so great, there must be a video of an SL65 application, but I can't seem to find any. Plus, with all the stinkin smog requirements in CA, are these CA compliant to pass smog at the pipe and visual inspection?

BlownV8

They may not pass visual if they get under the car but it should pass smog if your tune is good.

Speedriven1

I can't imagine they'd pass visual. The suppliers does have a CARB number on the cats (which is why there's such a price difference from the catless to the cats), so it should be fully compliant in terms of emissions/sniffers.

B Feelgood

Would love to hear the difference between the catless and catted downpipes. In Pennsylvania, the sniffer test only applies to 1998 and older vehicles. For newer cars, they simply plug a scan tool into the OBD port to see if there are any malfunctions/errors with the emissions system.

Is it possible to turn off the rear o2 sensor for catless downpipes but still show it as being on and functional for the sake of emissions/inspection testing?

Speedriven1

Yes, you can- but running without cats on the street is still probably illegal in PA, isn't it? The catless DPs are intended as off-road use/track use only.

Speedriven1

These guys spent last week working had and we have R230 downpipes IN STOCK again! Let me know if you want 'em.

DUDMD

Just ordered a set for my sl65 amg, can't wait to throw them on and see how much power the factory cats/downpipes sufficate.
Also bought a set of billet BOVs, so can't wait and will post videos of dyno charts/videos when installed in a few weeks probably.

boostd

Did you already do a stock dyno? If so, what numbers did you see?

DUDMD

Yes, I have a digital dyno dynamics with latest software at my shop.
It put down 475whp and 565wtq.
The car possibly maybe had a tune on it from the previous owner, I'll know for sure when I read out the ECU for tuning. But 475whp/565wtq seems about right. Only issue I had was both the car's map sensor and the dyno map sensor were only seeing about 15psi of boost. I may still have a super tiny boost leak, I could hear it when I did a pressure test.

Speedriven1

Hi, guys! Getting a lot of interest in these this season- just letting everyone know we have 1 set of R230 V12 downpipes (catless/off-road) in stock at the moment.