X pipe, or H pipe, or both? What makes more power?

at Pebble Beach, the best of show award went to the 1924 Hispano-Suiza H6C Nieuport-Astra Torpedo with this unique exhaust.

You can see “Steigboy” branding, referring to Steigboy Apparatebau, a Leipzig-based outfit founded in 1921, that made vacuum exhaust systems

This is an early vacuum muffler, sometimes referred to as an ejector muffler. Those big, round hamburger-looking sections allow for a large expansion of volume right after the header. That sudden volume change is supposed to knock down the sharp pressure pulses before they exit. 

In other words, it’s a reactive silencer tuned by volume and geometry rather than the fibrous packing in modern exhausts.

According to German literature about the Vacuum-Auspuff from when this stuff was new, a beveled baffle inside sits opposite the outlet, and the outlet pipe has helical vanes. That’s supposed to swirl and accelerate the gas flow out of the neck, inducing a slight vacuum in the main chamber. The idea was to scavenge cylinders between pulses and cut back-pressure while still muffling.

https://www.thedrive.com/news/whats-up-with-the-weird-exhaust-on-pebble-beachs-best-of-show-car

Bill Gates... proponent for less pollution, clean energy, curbing climate change, etc... "drive down both greenhouse gas emissions" has just 6 private planes, 2 helicopters. That's what it takes to fly one rich guy around. 8 aircraft. 1 guy.

Bill Gates owns two Gulfstream G650ERs, two Bombardier Challenger 350s, a Cessna 208 Amphibian Caravan seaplane, and two helicopters, a 2007 Eurocopter EC 135 which he uses to travel around Lake Washington, and a 2021 Airbus Helicopter MBB-BK117

he even published a book "How to Avoid a Climate Disaster". 

in 2022, Gates reportedly took 392 flights on private jets, an average of more than one per day.

He tried to convince Joe Manchin to support a climate bill that aimed to cut the global greenhouse gas emissions in a level similar to "eliminating the annual planet-warming pollution of France and Germany combined". Why bother? When you make around one private jet flight, a day... where is the concern for the planet warming pollution level? 

Why not make a private high speed rail to your favorite places instead, if you are motivated to eliminate greenhouse gasses caused by internal combustion engines? 

https://x.com/BillGates
https://en.wikipedia.org/wiki/Bill_Gates

https://simpleflying.com/bill-gates-private-jet-collection

Few people are are infuriating as a hypocrite 

wow

https://dailytimewaster.blogspot.com/2024/05/wow.html

I wonder, how many major American factory built cars have side exhaust?

I see some Mustangs at Goodwood with side pipes. I know the Shelby GT 350s had them, and I don't consider the Shelby's a "major American factory" so, no Cobra on this list. Shelby American built more cars with rear exiting exhaust than they did with side pipes.  https://www.hillbankusa.com/blog/The_Side_Pipe_Quandary

Trans Am Challengers and AAR Barracudas for sure. 

Corvettes after 1965 (likely optional, but not sold in California)
AMX's had optional side pipes

Vipers,

Little Red Express

2012 & ’13 Boss 302

10th gen F150s, especially the SVT Lightnings

the LaFrance is on airbags, and has the exhaust directed out the hydrant on the running board

https://www.tumblr.com/lamorahotwheels/739811132427157504?source=share

side pipe station wagon!

https://www.facebook.com/photo?fbid=10161152633543188&set=pcb.3592950350958555

clever marketing just needs a better name on the same product everyone makes

https://www.facebook.com/photo/?fbid=2513031848870809&set=gm.6903812152998111&idorvanity=456235534422504

Does anyone have a recommendation on header wrap?

I haven't used any in 24 years, and I don't know anyone that I can ask who is familiar with the various makers, product lines, thicknesses, materials, etc... 

but someone out there reading this might be an expert. 

So, What is your advice? And is it based on personal experience, or professional experience, or just a brand's reputation?

Because I'd like to support some company that is family owned made in the USA, or veteran owned, or a SEMA member... something like that to keep my favorite industry benefiting, instead of some big box store that can't be bothered to have a customer service operator (god love the good people at US Radiator!) 

Should I go with copper coated? Aluminized? etc. 

I'll tell you up front, I'm unadvisedly prejudiced toward Thermo Tec from using them last time, in the 90s, on my Bee, and seeing them at SEMA every year. 

either a working Lambo exhaust, or a sculpture

Fiat Chrysler Automobiles pleads guilty, is fined $300 million in emissions fraud investigation

The company acknowledged its efforts to evade emissions requirements for more than 100,000 older Ram pickup trucks and Jeep SUVs in the U.S. The affected diesel-powered vehicles span model years 2014 to 2016. Negotiations between FCA lawyers and U.S. officials to resolve the current probe dragged on for years and across presidential administrations as the two sides haggled over whether the company would plead guilty and, if it did, the exact details in any criminal charge, one of the people said.

https://www.nbcnews.com/business/corporations/fiat-chrysler-automobiles-pleads-guilty-fined-300-million-emissions-fr-rcna30487

I don't even know what the hell type of engine this is... but I love the exhaust pipes, and that is enough for me

video at https://www.facebook.com/2triders/videos/213154606395593/

factory race exhaust manifolds... as close to factory made headers as I've ever come across, made way back in 1964

 https://www.facebook.com/photo/?fbid=4685013244890837&set=pcb.4325325544256074

when making decisions on your new exhaust system, take a moment to mock it up with, and without a cat

 https://grassrootsmotorsports.com/forum/off-topic-discussion/can-we-please-stop-hotlinking-pics/20411/page3803/

I haven't seen these advertisements before

https://www.facebook.com/groups/226675368608297/permalink/323451815597318/

if you're going to have loud exhaust, don't piss off your neighbors. They WILL get revenge. Now, lets see what the next step will be? Will it be what's behind door number 1? (pisses off neighbors again, gets shot when driving by loudly) or door number 2? (gets a stock exhaust installed and lives through 2020)

construction expanding foam. That's effing genius. It IS a single moment permanent solution to someone that's pissed you off with ridiculously loud exhaust.

Here's the car, courtesy of his facebook page which also points out that he's a car salesguy at a Ford dealership, of course.


Now, I AM a dumbass with 426 wedge with 370hp at the tires, headers, dual 2.5" pipes, with Flowmasters and an H pipe. I enjoy rumbling past cars in parking structures that have asshole owners have hair trigger sound activated car alarms which go off just because motor cycles ride past.

Now and then, like when the parking garages are full for xmas shopping, I enjoy a juvenile cruise through the mall parking lots to see how many car alarms I can trigger. The record is 27. So far.

I never said I wasn't a juvenile goofball with a loud car and a stupid sense of humor

But I know not to shit where I eat, (unlike this idiot) and don't let my car roar anywhere within blocks of where it's parked.

Don't piss off your neighbors, they will cause damage to your car and cost you money, or get cops involved and cause you stress, or, they'll start a war, and you'll probably move so get some peace and quiet after you get revenge, cue the police getting involved again.

https://www.powernationtv.com/post/annoyed-neighbor-silences-loud-mustang-exhaust-with-expanding-foam
https://www.facebook.com/aaron.robinson.798/posts/10157539597814403

wait for it

a two-fer.
the Mustang does the cool stuff, and Rocket gives the perfect response

https://dailytimewaster.blogspot.com/2017/01/friday-open-road_13.html

a Mopar OEM 2.75 inch dual mode exhaust system allows the motor to roar when being driven hard, while being a little quieter when gently used or slowly cruising at low idle

The sound of these exhaust systems on the 2015-2016 Challenger and Charger Scat Packs, and Hellcats, has become one of the simplest features to envy since the Ferrari or Lamborghini wide open exhaust when the pedal is floored.

a pair of electronic valves located near the rear of the vehicle to control the level of the exhaust noise. At idle and in light throttle situations, the valves are in their closed position to keep sound levels down. This also helps to reduce “drone” when cruising on the highway, but when you put the hammer down, the valves open and the exhaust gets a whole lot louder.

https://www.torquenews.com/106/all-2017-dodge-challenger-charger-hemi-cars-get-dual-mode-exhaust

I expect a person could weld in the exhaust flaps, then wire the controllers onto any muscle car and go from a purr to a roar at will, or on command.

Just a thought.

Or maybe some company has already made such a thing, for inline with the mufflers, as I already know that there are weld on y pipes to dump all the exhaust before the mufflers for drag racing, to pick up 10-20 horsepower on the fly when off city streets

oh the stupid things people will do to get you tube hits, in hopes that something will go viral and result in you tube money, or "influencer" status

Basically, he welded a bunch of 55-gallon drums together and chained it to drag behind his truck.

Not even up in the air, it's dragging, and I am pretty sure he removed it the second the video was recorded.



via https://www.powernationtv.com/post/dog-gone-rv-snowy-semi-save-worlds-biggest-exhaust-bike-tractor-pull-and-vw-in-the-us 

Damn... the redneck exhaust, straight from the hardware store rain gutter supply aisle

http://carmechanicfails.tumblr.com/