SS US spec headers with SS mid pipes
SS euro reps with euro mid pipes
SS euro reps with 3 inch exhaust
Shorty headers with AA track pipe setup
Yes a bit
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“If liberty means anything at all, it means the right to tell people what they do not want to hear.”
― George Orwell
New exhaust installed video.
https://youtu.be/pdD5TWwUWnY
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“If liberty means anything at all, it means the right to tell people what they do not want to hear.”
― George Orwell
Ok ok you got me.
Alright before I spill the beans, and post all of dyno figures some specs of the car along with what it made.
Also there was an issue with the rpm pick up on the dyno.
Ok now that's out of the way my car is a 1995 m3 with 172k miles on its s50. Only mods were dinan tune with an AFE intake.
It made a healthy 219whp, and about the same wtq(rpm pick up was off).
Full exhaust swapped in consisting of Euro SS rep headers, euro ss race x pipe, and a euro scorpion muffler. Car made 229whp/229wtq.
Then RK tunes swapped in the 24lb injectors, and 540hfm(which turned out to not be working properly). Made some adjustments with the maf not proforming properly. It made 245whp/241wtq.
First graph showing just MPH with the stock exhaust/dinan/afe, same with new exhaust, and then tune with exhaust/540maf/24lb injectors .
Now with wtq/mph
Now with Rpms (which was off by 1,000 or so rpms) hence posting mph to help.
Car feels a whole lot better every where. Next step will be getting the cams installed with s52 valve retainers (I have a set laying around), and new keepers.
Then back to RK tunes for a retune , and new maf.
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“If liberty means anything at all, it means the right to tell people what they do not want to hear.”
― George Orwell
I am talking about the muffler mating to the rear of the mid section.
Those are some nice looking results. I am debating what I want to do with my exhaust at this point. I will probably leave my modified stock mid pipe, and either take advantage of my current job giving me access to a weld shop and rebuild a stock muffler to be a straight through absorption type, or be lazy and spend the money, that I don't have, on an aftermarket. I like your setup though. I am also interested in your skateboard mods. Downhill skateboarding is my other hobby that I don't currently have time for.
Last edited by tsmith25; 09-13-2017 at 08:03 AM.
95 cosmoschwartz M3/2/5 : 2012-1/1/2014 (worn rtab's and bald rear tires in the rain)
98 cosmoschwartz M3/4/5 : 2016-3/10/2017 (understeering SUV)
99 Estoril M3/2/5: 6/16/2017-current
Damn those are some good looking numbers and curves, especially from the 3.0. Really excited to see what the cams do. You said Epic Motosport Cams right? What are the specs on those?
“If liberty means anything at all, it means the right to tell people what they do not want to hear.”
― George Orwell
Mmmmm randy said like sunbelt maybe i should have gotten these cams lol, great numbers tho very impressive cant wait to see what the cams do
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“If liberty means anything at all, it means the right to tell people what they do not want to hear.”
― George Orwell
Ok cool thanks. By the duration numbers I would have thought they were similar to the mild shricks but I suppose its not always that simple.
I have the same setup as you (euro racelands, ss decat midpipe), except that I have the SS performance catback and had 2 200 cell magnaflow metallic cats welded in. It's still a tad too loud for my liking. I hope the resonators make a noticeable difference for you. In the past on other exhausts I didnt notice much change in volume by adding resonators. Right now I am dissecting the stock cats to replace the magniflows, but I was initially looking into using factory S54 cats. I don't think they would hinder flow, and I think cats are most likely the best option for reducing noise at this point.
“If liberty means anything at all, it means the right to tell people what they do not want to hear.”
― George Orwell
https://youtu.be/SLeI1eN_je8
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“If liberty means anything at all, it means the right to tell people what they do not want to hear.”
― George Orwell
1989 535i - sold
1999 M3 Tiag/Dove - sold
1998 M3 Turbo Arctic/black - current
2004 Built motor TiAg/Black - Sold
2008 E61 19T Turbo-Wagon - current
2011 E82 135i - S85 Swap - current
1998 M3 Cosmos S54 swapped Sedan - current
1998 Turbo: PTE6870 | 1.15 ar | Hp Cover, Custom Divided T4 bottom-mount, 3.5" SS exhaust, Dual Turbosmart Compgates, Turbosmart Raceport BOV, 3.5" Treadstone Intercooler, 3.5" Vibrant resonator and muffler, Arp 2k Headstuds | Arp 2k Main studs | 87mm Je pistons | Eagle rods | 9.2:1 static compression, Ces 87mm cutring, Custom solid rear subframe bushings, Akg 85d diff bushings, 4 clutch 3.15 diff, , Poly engine mounts, UUC trans mounts W/ enforcers, 22RPD OBD2 Stock ECU id1700 E85 tune, 22RPD Big power Transmission swap w/ GS6-53
275rwhp would be stout for sure. Lots of the sunbelt cars made in the 260's if I recall....
'03 911 Turbo 6MT fun car
'18 Toyota Land Cruiser Daily driver/Ski Machine/Off Roader
'15 Cayenne Diesel Wife's DD
'17 KTM 690 "Adv" 2 wheeled Adventurer
Well I swapped out the Scorpion exhaust for a euro ss sport exhaust . Video clips to come of both.
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“If liberty means anything at all, it means the right to tell people what they do not want to hear.”
― George Orwell
Video clip with Scorpion Muffler below.
Now with the euro m3 ss sport muffler(with cold start)
Last edited by GG///M3; 09-17-2017 at 08:06 PM.
Well cams went in today along with new keepers / s52 retainers as well.
Vids/dyno coming soon.
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“If liberty means anything at all, it means the right to tell people what they do not want to hear.”
― George Orwell
Can't wait to see the results!
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