Downpipes ?
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Joined: Mar 2016
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From: Los Angeles
2006 E55 AMG
Downpipes ?
I've been seriously considering doing downpipes and looking to either buy aftermarket or gut the stockers. My tuner says it requires no tune other then just deleting 02's. This is why I'm on the fence. If it doesn't need a tune is there any real gains other then sound and fuel smell. I figured if its worth 25-30whp atleast with a tune maybe worth it but it requires no tune but a delete of 02's seems kinda odd. Whats your experience with this mod any advice is appreciated.
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From: delaware
335i e90
Id like to know this too. You don't actually have to turn off the secondary o2's, you can use spacers on the sensors to pull them out of the exhaust stream somewhat and that in most cases elevates the code. When stock, how much additional performance is had ? I know exhaust temperatures will decrease and the turbos should spool faster, but you will loose some boost due to loss of exhaust restriction. Im sure people have done cat delete without a tune. Good question
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i too have been thinking about what is next - and if i were to pick one Turbos or DP's what would be the best bang for buck - so i called ACG in SD and first off the gent i spoke to sales was rude as hell and suggested turbos over DP's - but then talked to my mechanic and he said if it was his car he would do DP's and check with current tuner to make sure tune is optimized.
Either way they are both a big job and think pulling the motor is required.
Either way they are both a big job and think pulling the motor is required.
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Joined: Mar 2016
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From: Los Angeles
2006 E55 AMG
i too have been thinking about what is next - and if i were to pick one Turbos or DP's what would be the best bang for buck - so i called ACG in SD and first off the gent i spoke to sales was rude as hell and suggested turbos over DP's - but then talked to my mechanic and he said if it was his car he would do DP's and check with current tuner to make sure tune is optimized.
Either way they are both a big job and think pulling the motor is required.
Either way they are both a big job and think pulling the motor is required.
I think only if you change the bridge pipe you would have to do the motor. If its the DP's after the bridge pipes then no but I dont know how the awd cars are compared to the rwd when it comes to the install. I talked to redstar that makes DP's he said about 30whp no tune and then some crazy number with a tune. Im not sure.
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Joined: Feb 2016
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From: Michigan
w211 E55, w213 E63s
I think only if you change the bridge pipe you would have to do the motor. If its the DP's after the bridge pipes then no but I dont know how the awd cars are compared to the rwd when it comes to the install. I talked to redstar that makes DP's he said about 30whp no tune and then some crazy number with a tune. Im not sure.
Redstar does have some of the best quality dps i have seen come across this forum.
As far as engine dropping - you are correct. in order to the do the "bridge pipe" you will need to drop the engine on both RWD and AWD drive cars.
As far as catback, its direct bolt on (based on which dp provider you go with) and will NOT require dropping the engine. Hope this clarifies.
Cheers!
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From: NYC
E63S
Up until now I thought, based on all the reading about DPs, you MUST tune for DPs regardless of catted or catless. Engine must be dropped for turbo back DPs (DPs w/ bridge pipes) AWD cars. According to this dude, who seems to be some sort of "authority" when it comes to MB repairs, you don't have to drop engine for RWD (as you can see in linked video). Just sharing info that I have come across w/ the community.
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From: Raleigh,NC
E63S
I've got the modular midpipes from Weistec (I haven't installed yet but did scope out the labor using jackstands). These pipes allow for you to swap out in minimal time the cat and midpipe. Weistec modulars are catless and there is no need to drop engine to do the swap- just need a swivel socket and extension. (Option: Weistec true downpipes require an engine drop due to the incorporation of turbo bridge pipe).
You will CEL if you run no tune and catless DP's- potentially limp mode, from what I've read? Renntech tunes are not tuned for DP's and will not omit the CEL (I just got a tune from them- so the questions were asked). I've got some Fabspeed mini-cat o2 extenders that I hope will back the sensor out far enough not to trip the CEL.
You will CEL if you run no tune and catless DP's- potentially limp mode, from what I've read? Renntech tunes are not tuned for DP's and will not omit the CEL (I just got a tune from them- so the questions were asked). I've got some Fabspeed mini-cat o2 extenders that I hope will back the sensor out far enough not to trip the CEL.
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From: Los Angeles
2006 E55 AMG
I've got the modular midpipes from Weistec (I haven't installed yet but did scope out the labor using jackstands). These pipes allow for you to swap out in minimal time the cat and midpipe. Weistec modulars are catless and there is no need to drop engine to do the swap- just need a swivel socket and extension. (Option: Weistec true downpipes require an engine drop due to the incorporation of turbo bridge pipe).
You will CEL if you run no tune and catless DP's- potentially limp mode, from what I've read? Renntech tunes are not tuned for DP's and will not omit the CEL (I just got a tune from them- so the questions were asked). I've got some Fabspeed mini-cat o2 extenders that I hope will back the sensor out far enough not to trip the CEL.
You will CEL if you run no tune and catless DP's- potentially limp mode, from what I've read? Renntech tunes are not tuned for DP's and will not omit the CEL (I just got a tune from them- so the questions were asked). I've got some Fabspeed mini-cat o2 extenders that I hope will back the sensor out far enough not to trip the CEL.
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2003 W211 E55, 2003 W220 S600
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CLS63
For those that might have experience:
How much does the bridge pipe affect performance gains? That is, if the simplest downpipe solution is taken (i.e., not drop the engine), then what hp/tq is left of the table, with and without a tune?
How much does the bridge pipe affect performance gains? That is, if the simplest downpipe solution is taken (i.e., not drop the engine), then what hp/tq is left of the table, with and without a tune?
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From: Los Angeles
2006 E55 AMG
Just got done doing a couple of maintenance stuff in the car that came up while doing the spark plugs after changing the plugs the car feels smoother at idle oddly gapped at .022 and it pulls smooth as we speak in 4th havent tried 5th yet. The colder plugs seem to have helped so far. While i was there I asked the exhaust shop next door how much he would charge to decat the car and said 200. I may go that route because im gonna store my cats for future just in case not gut them and he is doing 3" pipes. Dont know if Ill gain any power wish there was a before and after dyno for deleting cats but would be nice to get an idea.
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From: USA
m157 SL63
Just got done doing a couple of maintenance stuff in the car that came up while doing the spark plugs after changing the plugs the car feels smoother at idle oddly gapped at .022 and it pulls smooth as we speak in 4th havent tried 5th yet. The colder plugs seem to have helped so far. While i was there I asked the exhaust shop next door how much he would charge to decat the car and said 200. I may go that route because im gonna store my cats for future just in case not gut them and he is doing 3" pipes. Dont know if Ill gain any power wish there was a before and after dyno for deleting cats but would be nice to get an idea.
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From: Los Angeles
2006 E55 AMG
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2014 E63 AMG
I'm looking into downpipes aswell but I really only want to go true downpipes from the turbo back.
I'm looking at these at the moment and they look pretty good and the price is very good aswell.
https://www.cksperformance.com/produ...hausts-headers
I've spoken to kleeman and they want €2500 for there's.
I'm looking at these at the moment and they look pretty good and the price is very good aswell.
https://www.cksperformance.com/produ...hausts-headers
I've spoken to kleeman and they want €2500 for there's.
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Joined: Nov 2001
Posts: 70
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From: Porter Ranch, Ca.
W210, W164, W220, W222
Just got done doing a couple of maintenance stuff in the car that came up while doing the spark plugs after changing the plugs the car feels smoother at idle oddly gapped at .022 and it pulls smooth as we speak in 4th havent tried 5th yet. The colder plugs seem to have helped so far. While i was there I asked the exhaust shop next door how much he would charge to decat the car and said 200. I may go that route because im gonna store my cats for future just in case not gut them and he is doing 3" pipes. Dont know if Ill gain any power wish there was a before and after dyno for deleting cats but would be nice to get an idea.
Thread Starter
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Joined: Mar 2016
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From: Los Angeles
2006 E55 AMG
Junior Member
Joined: Nov 2001
Posts: 70
Likes: 10
From: Porter Ranch, Ca.
W210, W164, W220, W222
Thread Starter
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From: Los Angeles
2006 E55 AMG
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From: Colorado, USA
E55 C63
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2013 E63 P30, 2010 GL550
These camshaft hall sensors lose integrity and start seeping oil over time. Oddly enough, they continue to work. This issue is a nuisance more than a critical failure. Few drops of motor oil in the contacts/wiring harness. The replacement p/n A2769051100 sells for around $40/ea, need 4 total (2 per cylinder bank). Use WIS article AR15.10-P-2000ELB for guidance. Hope this helps.
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From: USA
m157 SL63
