So my old quad exhaust finally rusted away and literally fallen apart. It wasn't of the best build quality but lasted maybe 8 years? Here is the link to an old thread with the old exhaust installed.
https://www.bimmerforums.com/forum/s...pics-of-my-car
Time for a new one - I liked the idea of the old exhaust design that did not require cutting through a spare tire compartment but this time I opted for a full stainless steel exhaust and also decided to use a replica of M5 touring rear bumper instead of keeping a modified standard bumper. I'm providing a link to photos for those interested, hopefully the link will work..! The exhaust was designed and beautifully put together from scratch at BimmerClinic in NJ. It sounds really good too - although I've got no sound clip. Let me know what you think.
https://photos.app.*******/p8dIESYlD8COFrfN2
OK, hopefully this will finally work for everybody to see the images...
https://imgur.com/a/5tpmA
<blockquote class="imgur-embed-pub" lang="en" data-id="a/5tpmA"><a href="//imgur.com/5tpmA">Quad Touring Exhaust</a></blockquote><script async src="//s.imgur.com/min/embed.js" charset="utf-8"></script>
Folks, not comments at all? Although I realize that not everyone may have liked the idea.
I think everyone is watching football and drinking beer right now. I quite like the look, but couldn't justify it with my I6 motor.
I like it, just saw it today. You use any insulation between the cross pipe as it runs the width of the lower bumper so it doesn't melt?
'98 M3 5spd - '03 540it 6spd M-Sport
Hi. Correct, the pipe that goes across is wrapped, not sure exactly what type of wrap was used but so far no issues with the heat transfer. There is also a gap between the exhaust and the bumper cover.
The questions left on the table are:
Total CFM flow of a 540 at 3-5,500 RPM
OE Muffler flow in CFM
Gains provided with change: XX ROI (sounds CHECK, HP nope)
Weight reduction (YOU BET!)
I like the single pipe look. The cross over pipe heat exchange might be an issue in long highway runs....
Drone sounds with set up? Can you live with it?
Current Garage Highlights
2003 525iT TiSilver
2002 M5 TiSilver
1998 528i KASCHMIRBEIGE METALLIC (301) (Goldie)
Former Garage Highlights
2005 X5 4.8is
2004 325iTs (2x)
1973 Pantera L
1971 Dodge Dart Swinger "Lite Package"
1970 Dodge Challenger T/A 340 Six Pack Alpine White
1970 Dodge Challenger T/A 340 Six Pack GoManGo Green
1969 Road Runner 383
1968 Barracuda Formula S 340 Sea Foam Green
looks good. I might be interested
Sent from my Note 9 using Tapatalk
2000 528iT
It looks like they did a nice job, how much did they charge you if you don't mind me asking?
2000 BMW M5 Evolve Alpha-N Tune, Evolve Carbon Fiber CAI's, UUC Short Throw Shifter, Dinan Front STB, Dinan Rear Sway Bar
2001 BMW 330i Dynavin N7 Pro
1985 BMW 745i 18" Style 37's, Team745i Chip, Getrag 265/6, Clutchmasters FX-300, UUC Short Throw Shifter, Strut Tower Bar, Bilstein HD's ("Build" Thread")(SOLD)
1986 BMW 735i Getrag 265/6 Swap, Strut Tower Bar, Bilstein HD's, Euro F/R Conversion, 3.46 L/S Diff (Scrapped)
2016 Ford Mustang GT Performance Pack Stock
2004 Mercury Marauder Eaton M112, 3.4 Billetflow upper, Accufab SBTB + Plenum, 4.10's, Stainless Works LT's, 2.5" Exhaust, Borla Stingers, FX-R projectors, Addco F/R swaybars
2003 Mercury Marauder JLT CAI, SCT Xcal4, Stainless Works LT's, SW 2.5" Catback
1996 Ford Bronco 4" lift, 35" BFG A/T's, MH1 projectors
Good points. Unfortunately I haven't done the flow/back pressure calculations (before - after) so I don't have a good answer. Actually when I bought the car it already came with a similar type of quad setup, although it wasn't nowhere near the quality of this new one, and the design wasn't good either (there was a point where the flow was restricted), so I am not able to compare to a stock. Plus the engine is supercharged which would have to be factored into a comparison as well. Sorry I can't be more precise... As far as the sound, when I have some extra time I'll try to take a sound clip.
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Thanks, that's a good info to have!
Indeed, the shop took a good care to do it properly. It wasn't the easiest project either as there really wasn't a template to copy or at least to start with... a lots of details to make sure it aligns with the bumper exhaust openings (I was replacing my old rear bumper with an "M version" at the same time), that it's not touching the bumper etc. I suggest that you call them (ask for Bill, the owner) to find out what it would cost - mine was really a prototype and I don't know what they would charge next time around. If you like me to post additional pictures just let me know.
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