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We at L.E.M have been supporting products for the C43 (and related E43 engine) for some time now on the forums, but are aspiring to branch out to more platforms including the GLC43.
We would like to know if there would be interest in funding the development and order of our 3" Monster series downpipe for the GLC 43. These babies are made out of 304 stainless steel, argon backpurged welded 8mm seams, and CNC flanges. We 3d scan each pipe and develop them virtually before we make the mold (jig), to ensure 100% perfect fitment.
Our downpipes come in a 200 cell configuration and are exclusively catted. Catted downpipes have the benefit of not having a obnoxious smell, sound better as they have a design that innately allows sound to expand in order to produce a nice deep refined tone.
we need 5 fully paid orders to start production which is about 3 months (or less), and you can be on your way to stage 2 with that beautiful throaty smell and 100% guaranteed fitment.
below is a picture of our DP's along with stock GLC DP's for comparison of features and specs.
The funding price is 1,100 and we need 6 orders at this price (so far we have 1 guaranteed order).
The details can be found here: https://www.logosengineeringmotorwor...-monster-pipes
As a side note, we have a full intercooler with larger charge pipes coming out in about 2 weeks that should fit the GLC 43. Price on that will be $1,495:
Last edited by LogosMotorworks; Sep 20, 2021 at 12:34 PM.
Are there any links to audio clips of this 3" DP on the W205 or other M276 platforms that we can listen to/watch to get some idea of the exhaust note once they are installed?
Are there any links to audio clips of this 3" DP on the W205 or other M276 platforms that we can listen to/watch to get some idea of the exhaust note once they are installed?
After fitting a similar thing,I had some error codes but after looking into it further, I realised that I needed some new seals. I ordered them from NES-IPS and they shipped quickly. I fitted them and everythnig was as good as new.
Last edited by Samadentul; Sep 2, 2021 at 05:35 AM.
The design in of itself is plug and play with no mods needed for fitment. Because you are potentially going from stock 600 cell to a high flow 200 cell count on the catalyst substrate you are bound to trigger something. The can be brought back to spec and balance with a specific 02 spacer that we recommend when installing. It has worked with about 10 customers so far with 100's of miles logged.
Tuning is highly recommended; even with a simple JB4 if thats the route you want to take. Your turbos will be spinning faster now that gases can evacuate faster, and you want to take advantage of that which will give you faster spool up and more torque and HP throughout the rev rage (with either a JB4 or a stage 2 tune). By the way guys, we have our intercooler coming out that can fit your cars...if you buy into these and this gets funded, we will offer 100$ off our intercooler if you package these 2 together. The intercooler with charge pipes will be $1,495.
Whos the manufacturer of your HFC cores and how reliable are those ? Asking coz i used magnaflow metal spun cores on my Acura and those went loose inside the core housing and in 12-15k miles middle part been blown out clogging my exhaust, had to cut it open to remove that substrate foil. 2 cores, both ended up like that.
We use 2 manufacturers that we have wholesale contracts with: the sports division of futaba Japan and ECCOCAt Italia. did your magnaflows have the "ying yang" dual spiral design like ours? we chose this design specifically because it lasts longer as it has 2 centers. Our oldest model that we have thats on the road today, I believe is a Audi model that we made for a vendor in the UK back in 2009 (using these cats), so far they have logged in 30k plus miles on the DP's.
S-Matrix design ( 2 cores), we also weld 360 degrees at the front of the substrate (as seen in the pic) and the rear (its a little overkill but this is also how you prevent it from shifting or moving in the longrun)
Yep, that core fixing definitely gna extend the lifespan and the core itself looks way more sturdy than magnaflow one i had, it was a simple 1 center spiral, not double like yours.
How many have "funded" this project thus far? If any of you with GLC 43s want affordable/high quality/reliable downpipes, these are it! I'm not missing out on this!
Guys , forums arent that popular these days, most of the folks are hanging at fb or ig , i saw couple glc63s groups on fb , try to register and offer it there , i believe you should get enough ppl there way sooner.
The thing with that route is that its considered spam. We are a paying vendor here on the forums, so its permissible. maybe some of the glc 43 folks can help socialize this in their automotive communities.
We have lowered the buy in price to 1,100$ as a bigger incentive and reward for those who want to take the plunge with us early in the game. Thats 250$ off the full potential retail of the kit, we had to re-price the kit as it uses a bit more material than our c43 monster pipes. If they are release the full retail will be $1,350
but we will now need 6 committed people. Just 4 more!
You will not get 250$ off this downpipe set ...ever! this is your change were your patience and faithfulness will pay off.
Supersprint charges over $2000 for a similar design: for just 1 downpipe! hopefully this can put the pricing and quality into perspective.
There has been some concerns about sound with this setup and we want to address it, with some "acoustical science". You will not get drone, or honda civic raps to upgrading to a setup like ours.
This would be on the contrary to what we are about: brining out the potential performance and refinement of a European automobile where luxury meets excitement especially in AMG products. We do not make catless DP's for a very specific reason, not only is there almost no difference between no cats vs. a high flowing 200 cell substrate (if there is, its negligible) . Its also about the sound.
although our design is not unique in its engineering as this exists on other platforms as well, we went with what works. What makes ours different is that ours is a high flow catted design, that unlike a straight through "skinny" catless design, ours produces a deep-free breathing tone that opens up the exhaust path. Without getting too technical about harmonic resonance, the principal is simple if you compare a downpipe to a musical instrument where varying diameters of tubing affect the tone and pitch. See the below picture for a visual representation.
The same principal exists with your cars resonator, its just a void that allows certain sounds to expand and cancel out certain frequencies. the catalyst also acts as a acoustic dampener for higher pitched frequencies as well.
Our B58 downpipe for the BMW has the largest barrel body on the market today (5") and we chose this not only because of flow but because of sound and expansion. it also has a 200 cell catalyst on the inside. a good example is this video on you tube of the revs of a catted and uncatted downpipe for the n55 engine (straight 6, turbo charged), the tone and sound difference is clearly there (best heard with headphones)
compare this to our 5" high flow catted downpipe for the B58 within our "Monster" series line (coming soon . More bass and smooth tone compared to no cats
This is also not only about sound but you'll be able to go stage 2 and unlock HP/and TQ all throughout the rev range. With quicker spool up and better throttle response.
Last edited by LogosMotorworks; Sep 20, 2021 at 12:33 PM.
Let's go boys and girls!!! 2 confirmed and looking for 4 more!!! From the videos they sound great! Looking forward to this happening! I might have to buy out the remaining sets and sell them off to make this actually happen
What is the expected power gain on these? I'm currently stock with a stage 1 Eurosport tune and I feel like she's running out of steam once I get over 110 (mph).
Peak is nice and all, but any reasonable full curves out there?
What is the expected power gain on these? I'm currently stock with a stage 1 Eurosport tune and I feel like she's running out of steam once I get over 110 (mph).
Peak is nice and all, but any reasonable full curves out there?
Here is a comparison of Stage 1 vs Stage 2 regarding OE tuning on a C43, same platform as ours...
The gains are about 15-20whp over stage 1 and the torque is similar, but this is dependent on the tuning company. Without tuning for stage 2 you will not yield any gains from just installing the downpipes. No downpipes, whether catted or not catted, offer much if any HP/TQ increases without additional tuning. This is one of the modifications that will allow you to push the vehicle to higher HP/TQ levels, along with proper fueling and intake setups (a few are coming to market very soon that should provide solid gains...) If you are looking to get in the upper 400s/low 500whp, then you will need to add downpipes of some fashion. Good luck!!!
Regarding the price vs power gains. If you want to go stage 2 or want to push for additional power, you will need to do some sort of downpipe to handle the increased output of the turbos and the heat they create. So, this is an option that is roughly half that of any other offering known currently. Install could be $700 or a lot less for anyone that is willing to install themselves, it all is dependent on the technical skills of the end user. I am more willing to invest $1500 or less into these type of parts vs $2500 like some other manufacturers.
Last edited by 1SickGLC; Sep 21, 2021 at 04:07 PM.
Reason: Typo
not to mention that the 15-20 whp and 25-30 tq is felt throughout the power range if you dial everything nicely with a tune or JB4. its not just 25 hp at "x" rpm. You pick up a little here and there all throughout the rev range. Lets not forget faster turbo spool and yes...the inside of your engine being less hot as now you get the hot air evacuated quicker because there is less of a restriction. This may or may not lead to a touch decrease in IAT's (in theory anyway). Lets not forget about sound as well, opening up that exhaust tract has a nice effect!
come October 18th, this pre-order will be closed and if we dont make it, everyone will be refunded.
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. More bass and smooth tone compared to no cats
