Photos (Sneak Peak) :: Bolt-in Catless Down-Pipes / Test Pipes :: 2010 C63
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Isn't R&D work fun.
I think you could have probably bought some L/T headers by the time you paid for the PLM manifolds, GT Pro Single X-pipe, the custom exhaust and your time and efforts. Looks great though.
Good luck at the track tonight!! Keep us posted.
Last edited by Dads C63; Jul 21, 2010 at 08:12 AM.
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I had a 12" Vibrant resonator put in my '07 GTI with a catless DP. It toned down the raspiness and still allowed a free flow.
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E63
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E63
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Turbo and Nat Asp exhausts have significantly different requirements and necessities. Lots of turbo guys (cars to trucks) just run straight pipe all the way back from the turbo and never have any issues with noise. My neighbor has a decent modified diesel truck with aforementioned straight shot exhaust, sucker is quieter than a stock E63 exhaust at idle part throttle and floored! The shameful part is it's also hella faster than my E...
I guess he could always re-install the GT-Pro X.
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E63
I understand that a turbo already muffles the sound a little. On that GTI exhaust, I already had a muffler in the rear, but, I prefer my 4-banger to be a little mellow and not sound like a ricer. I never had a V8 before. Do you think a straight-thru resonator will quiet things down a little with Super's setup?
I guess he could always re-install the GT-Pro X.
I guess he could always re-install the GT-Pro X.
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2011 GLK 350, 2013 GT-R, & 2013 RAM 1500
Nothing terribly exciting to report. Sadly, conditions were a bit worse today on the dyno (compared to March) and there were not any measurable gains with the catless setup vs. my previous stock primaries plus X-pipe setup. We're still scratching our heads at this one.
There are also a couple fitment/clearance issues with the pipes that we'll need to tweak before I run them again. Previous setup is going back on so I can compare in this warm weather. I have some fresh track times from tonight to compare to next week.
One positive note. The O2 simulators are working perfectly. No CEL and as expected AFR is dialed in @ 12.5:1 @ 6,000 RPM. The ECU adapted nicely.
So that's it. No fancy write-up until I can get some more meaningful data.
There are also a couple fitment/clearance issues with the pipes that we'll need to tweak before I run them again. Previous setup is going back on so I can compare in this warm weather. I have some fresh track times from tonight to compare to next week.
One positive note. The O2 simulators are working perfectly. No CEL and as expected AFR is dialed in @ 12.5:1 @ 6,000 RPM. The ECU adapted nicely.
So that's it. No fancy write-up until I can get some more meaningful data.
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'09 C63 Performance Package - Steel Grey/Sahara Biege
[QUOTE=superlubricity;4169679]Nothing terribly exciting to report. Sadly, conditions were a bit worse today on the dyno (compared to March) and there were not any measurable gains with the catless setup vs. my previous stock primaries plus X-pipe setup. We're still scratching our heads at this one. QUOTE]
7:22am and I feel like someone crapped in my cornflakes.
...I'll eat around it though until the new results. Of all of the cars I've owned, this C63 is by FAR the most sensitive to warmer weather. My butt-dyno says the car is a slug lately.
Good luck...look forward to the comparisons!
7:22am and I feel like someone crapped in my cornflakes.
...I'll eat around it though until the new results. Of all of the cars I've owned, this C63 is by FAR the most sensitive to warmer weather. My butt-dyno says the car is a slug lately.
Good luck...look forward to the comparisons!
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[QUOTE=clktoc63;4169846]
A few trips to the drag strip last summer support what you are saying.
December 2009 mid 11's 121+ mph
July 2009 low 12's 117 mph
heat and humidity......nobody's friend
Nothing terribly exciting to report. Sadly, conditions were a bit worse today on the dyno (compared to March) and there were not any measurable gains with the catless setup vs. my previous stock primaries plus X-pipe setup. We're still scratching our heads at this one. QUOTE]
7:22am and I feel like someone crapped in my cornflakes.
...I'll eat around it though until the new results. Of all of the cars I've owned, this C63 is by FAR the most sensitive to warmer weather. My butt-dyno says the car is a slug lately.
Good luck...look forward to the comparisons!
7:22am and I feel like someone crapped in my cornflakes.
...I'll eat around it though until the new results. Of all of the cars I've owned, this C63 is by FAR the most sensitive to warmer weather. My butt-dyno says the car is a slug lately.
Good luck...look forward to the comparisons!
December 2009 mid 11's 121+ mph
July 2009 low 12's 117 mph
heat and humidity......nobody's friend
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Nothing terribly exciting to report. Sadly, conditions were a bit worse today on the dyno (compared to March) and there were not any measurable gains with the catless setup vs. my previous stock primaries plus X-pipe setup. We're still scratching our heads at this one.
There are also a couple fitment/clearance issues with the pipes that we'll need to tweak before I run them again. Previous setup is going back on so I can compare in this warm weather. I have some fresh track times from tonight to compare to next week.
One positive note. The O2 simulators are working perfectly. No CEL and as expected AFR is dialed in @ 12.5:1 @ 6,000 RPM. The ECU adapted nicely.
So that's it. No fancy write-up until I can get some more meaningful data.
There are also a couple fitment/clearance issues with the pipes that we'll need to tweak before I run them again. Previous setup is going back on so I can compare in this warm weather. I have some fresh track times from tonight to compare to next week.
One positive note. The O2 simulators are working perfectly. No CEL and as expected AFR is dialed in @ 12.5:1 @ 6,000 RPM. The ECU adapted nicely.
So that's it. No fancy write-up until I can get some more meaningful data.
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Joined: Jul 2010
Posts: 585
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E63
Nothing terribly exciting to report. Sadly, conditions were a bit worse today on the dyno (compared to March) and there were not any measurable gains with the catless setup vs. my previous stock primaries plus X-pipe setup. We're still scratching our heads at this one.
There are also a couple fitment/clearance issues with the pipes that we'll need to tweak before I run them again. Previous setup is going back on so I can compare in this warm weather. I have some fresh track times from tonight to compare to next week.
One positive note. The O2 simulators are working perfectly. No CEL and as expected AFR is dialed in @ 12.5:1 @ 6,000 RPM. The ECU adapted nicely.
So that's it. No fancy write-up until I can get some more meaningful data.
There are also a couple fitment/clearance issues with the pipes that we'll need to tweak before I run them again. Previous setup is going back on so I can compare in this warm weather. I have some fresh track times from tonight to compare to next week.
One positive note. The O2 simulators are working perfectly. No CEL and as expected AFR is dialed in @ 12.5:1 @ 6,000 RPM. The ECU adapted nicely.
So that's it. No fancy write-up until I can get some more meaningful data.
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C63
Super, I agree with AMS about the x-pipe. Granted I only eliminated the sec. cats but I did test out with and without an X. The first setup I tried was a decent X-pipe in their place. I then went with straight pipes and took the X out. I definitely noticed a slight drop in power so for the next setup, I went back to an X(nicer design) setup and got the power back. I realize this was not dyno verified but I did feel the difference. I wasn't able to spin the wheels up top like I did with the X-pipe setup. That was enough proof for me to come to this conclusion. Just my .02c
Anthony
Anthony
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I assumed the existing crossover tube in the resonators would serve the purpose. I can easily add my X-pipe into the system. I'll give it a shot.
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E63
The primary purpose of using a crossover pipe be it H or X is to increase torque. Straight pipes without a crossover of any kind will still make the HP up top. From what I've seen people are making good power and torque with the factory resonator aka mini crossover H, that is to say the gains from adding an X pipe don't seem to do much, and those that delete the factory resonator crossover aren't going any faster than those that have them.
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E63
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That makes sense because Super said he didn't notice any gains after he removed his old setup and install this new DP. He just equaled his power with the original setup (factory primaries and GT Pro X) using a DP only. Put the X back in, and you'll see the gains; even in this warmer weather since his last dyno.
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C63
No, sorry. I wish I did. I was planning to do so but I did all these setup winthin a few weeks time. As I stated, numbers/data is the best and only way to 100% confirm this but it was a noticeable difference not just the "butt dyno" deal. It was most noticeable by doing a rolling start then punching it. Spun the tires up top with the X setup and did not without it. Again you can take with a grain of salt but it was a noticeable difference to me.
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That makes sense because Super said he didn't notice any gains after he removed his old setup and install this new DP. He just equaled his power with the original setup (factory primaries and GT Pro X) using a DP only. Put the X back in, and you'll see the gains; even in this warmer weather since his last dyno.
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E63
No, sorry. I wish I did. I was planning to do so but I did all these setup winthin a few weeks time. As I stated, numbers/data is the best and only way to 100% confirm this but it was a noticeable difference not just the "butt dyno" deal. It was most noticeable by doing a rolling start then punching it. Spun the tires up top with the X setup and did not without it. Again you can take with a grain of salt but it was a noticeable difference to me.
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C63
