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#1
08-10-2010, 11:46 AM
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Should I get 3in exhuast on my 87 300sdl
I’ve been wanting to change out my exhaust system on my 300SDL for some time. I had a rust issue with my muffler so I gave my car a muffler economy and simply cut it off and put a down pipe in its place. But I still find myself wanting more. After searching the forum for two days I haven’t found much on my 300sdl and a 3in full system right off the turbo.
I’m thinking no resonator, muffler, no anything. Just a turbo and some 3 inch pipe. I know there has to be someone out there on the road with this setup. Did you notice any noise increase, I’m not wanting to get noticed by anyone or increase the noise. And I know that my car isn’t the fastest but having a little power increase would be nice. Let me know what you think, I’m bored and I’m wanting to work on my car.
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Professional greasecar installer Austin TX 98 Jetta TDI with grease car kit + veg-therm (totaled) 87 MB 300SDL running on B99 / greasecar kit + 30 fphe www.austingreaseguys.com 
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#2
08-10-2010, 12:05 PM
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My 300SD is straight piped all the way back but it is the factory diameter. I just removed all the extras. The turbo wine is slightly audible and I hear the wastegate under hard acceleration. There is a slight drone at around 1800 rpm but it goes away as you increase rpm. Really not much difference other than that. I would like to say the turbo is more responsive as well but I only have my butt-o-meter to test it by.
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1974 450SL White/Navy Blue 1983 300SD White/Parchment, VDO Boost Guage, 215/60R15 Bridgestone Potenza RE960AS Pole Positions on 15X7 15 Hole Wheels, Straight Piped, 298K? 2004 Ford Excursion XLT 4X4, 5.4L V8, 285/65R16 BFG AT KO
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#3
08-10-2010, 01:31 PM
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I've got a 3" in my 124 gasser TE with two magnaflows..... Its not too loud although I get an annoying drone between 45 55 mph.
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 90 300TE 4-M Turbo 103, T3/T04E 50 trim T04B cover .60 AR Stage 3 turbine .63 AR A2W I/C, 40 LB/HR MS2E, 60-2 Direct Coil Control 3" Exh, AEM W/B O2 Underdrive Alt. and P/S Pulleys, Vented Rear Discs, .034 Booster. 3.07 diffs 1st Gear Start 90 300CE 104.980 Milled & ported head, 10.3:1 compression 197° intake cam w/20° advancer Tuned CIS ECU 4° ignition advance PCS TCM2000, built 722.6 600W networked suction fan Sportline sway bars V8 rear subframe, Quaife ATB 3.06 diff
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#4
08-10-2010, 02:40 PM
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So today during the lunch break I went out to my first muffler spot in town I found, and was priced $550 3in from turbo ->flex pipe-> res-> muffler. Is that a correct price for what I'm wanting, or is that to high.
For some reason I don't think it's really going to be much loader then what it is now. I have stock exhaust minus the muffler. Should I add on the muffler and resonator, because that adds to the over all price.
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Professional greasecar installer Austin TX 98 Jetta TDI with grease car kit + veg-therm (totaled) 87 MB 300SDL running on B99 / greasecar kit + 30 fphe www.austingreaseguys.com Last edited by latitude500; 08-11-2010 at 12:40 PM.
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