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Does the Y exhaust pipe improve sound and performance or not?

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In most cases yes. what it does is equalize the back pressure of the cylinders ind incresses what is known as the scavaging effect which helps rid the engine of exhaust. in the old days this was known as a crossover. sound is more of a muffler choice.

Posted on Sep 26, 2009

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Posted on Jan 02, 2017

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2 Answers

Truck has a fluttering noise at exhaust pipe


Ron, A lot of cars and trucks experience this,Is your engine running good and tuned up, if you find no exhaust leak(including around the manifolds) and know baffles in mufflers are OK and not loose, you may have to consider it normal. I have not done it, some say to install an H or X pipe ahead of mufflers to equalize exhaust pressure and get rid of noise. Check the attached links,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
http://www.fullsizechevy.com/forum/general-discussion/performance/exhaust/467084-fluttering-flapping-noise-out-exhaust.html
How After Market Exhaust Systems Can Disrupt Your Car Power Curve Exhaust...
http://www.camaro5.com/forums/showthread.php?t=269259

Jul 08, 2016 | Cars & Trucks

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How do you repair jaguar s type with a s701 code


I'm not familiar with a code that is s701, typical engine cades start with P. However, jag had a mfr recall numbered S701 on 98-99 xj models. What year and engine is your jag? Also try these links http://www.jaguarforums.com/forum/s-type-s-type-r-supercharged-v8-x200-15/s-type-check-engine-codes-61719/. http://www.obd-codes.com/trouble_codes/jaguar/. JAGUAR S701 1672 V 3/1/2002 1998 XJ series, WJCXV04.0AS3 A number of owners of 1998 through 1999 model year Jaguar XJR vehicles, 1983 50S 4444 1999 XK series XJCXV04.0AS3 equipped with an exhaust gas recirculation system, have been alerted to the 2461 50S presence of a possible problem by the sound of an exhaust leak and/or illumination of the MIL. It was established that the noise was being caused by exhaust gas escaping from the pipe that transfers exhaust gas from the exhaust manifold to the EGR valve. The escape was caused by a crack in the transfer pipe. Remedy: The design of the convolutions that provide for flexibility of the transfer pipe has been modified to improve the pipe's resistance to damage during installation and due to vibration. A heat sock has been added to provide a vibration damping medium for the pipe. Technical Service Bulletin S701 describes corrective action. Hope this helps

Oct 07, 2015 | Jaguar Cars & Trucks

1 Answer

What modified exhaust system is best


exhaust systems are more complex than just sticking on any old thing
exhaust systems that are "mandrel bent) have a smoother flow of exhaust gas
systems that have a balance pipe between banks is a must but the balance pipe has to be of a particular size
to understand an exhaust system you have to have some understanding of how it works
yes--- it takes the exhaust gas out the back and sounds real good when it is loud and if that is all you want then any system will do the job
the fact is , exhaust systems when operating correctly are designed to move the gas at such a speed so as to have the low pressure shock wave return to the exhaust valve at the moment when it is opening and so the compression gas exits into a low pressure are
this low pressure shock wave is created when the high pressure of the expanding gas in the exhaust reaches the end of the pipe and explodes into the air.This creates a low pressure in the pipe behind it which then travels back up the system to get to the exhaust valve at the precise moment it opens
Now if the system is too long, too big or has too many bends or wrinkles in the bends, that movement of the low pressure is lost to the exhaust valve and so the gas escapes into a pressure area
in effect exhaust gas flows as a pulse as each exhaust valve is opened in succession
this pulse is what is heard as a loud noise from a bad system
it indicates a system that is not getting fully performance from the engine
another point --- exhaust gas noise echoes in a pipe as like ripples from a stone dropped in water
to have an efficient exhaust system that is quite , that principle has to be acknowledged and the system muffler silences that echo without affecting the gas flow
that is why a muffler works as it shuts down the echo out the pipe but it also blocks the gas flow
items fitted such as "hot dog " type mufflers absorb and the way such a muffler is fitted depends on the amount of echo captured the echo with out affecting the gas flow
so now having some understanding of the purpose of an exhaust system , you should be able to select a performance enhancing system with out the noise problem that will attract the law enforcement agencies
the cost is no guarantee of performance but design suited to the car is

Sep 08, 2015 | Cars & Trucks

1 Answer

Exhaust system ofr jumbuck


you can go cheap and use a common bend extractor and regular exhaust system or you can get better with a mandrel bent extractor. Use performance muffler and pipes about 1/2 inch bigger than standard . Extra large looks good but will reduce performance and the cost will not be worth the effort. Exhaust systems to work have to be tuned to the engine . They have to be designed so that the shock wave from a power stroke enters the extractor at the exact moment that the previous shock wave that reached the end of the exhaust pipe has turned into a low pressure area and travels back to the extractor to arrive at the moment the exhaust valve is opening so allowing the compression gas from the power stroke to exit into a small low pressure area which in turn sucks out the used gas. That is why wrong size exhausts area a waste because the low pressure hits the exhaust valve and becomes a high pressure area as it rebounds back down the pipe and the exhaust dumps the power gas into a pressure area and not a vacuum. There are books on tuning exhaust systems that will explain it in more detail but you will find that bigger is not better . It just looks tuff and noisy and is next to useless when it comes to performance.

May 21, 2014 | 2006 Proton Satria Neo

1 Answer

Do headers disrupt chevy 350 tbi performance


You might want to do a tail pipe pressure test to be sure your exhaust system is not partly plugged. I am assuming that you pulled the 02 sensor from the exhaust pipes or headers. The headers sound as if they have been on the truck for awhile and are not new to the unit so then I would not think they are causing the problem. But I tell you for sure the plugged exhaust system will.

Jan 16, 2013 | 1987 Chevrolet G30

2 Answers

Is it neccessary for a car to have a resinator/cat convertor


Yes, legally as well as performance wise. Your vehicle needs the back pressure from the factory exhaust components for the engine to run correctly.
There is no reason to remove the cat, but it is illegal to do so.

Nov 05, 2012 | 2004 GMC Envoy

1 Answer

Can you put true duels exuast on a 1996 camaro z28 and still comply with emissions.


Different states have different rules about this, call your local state office that runs the inspection program and ask them, in my state it is the Air resources board. If you just do it you may have to remove the pipes to pass smog inspection. You can never run true dual exhaust, you must retain the original catalytic converters, and on this car you have one main catalyst. You can however split the pipes out of the main catalyst and run duals that way, it will not improve performance very much but it helps.

Sep 05, 2011 | 1996 Chevrolet Camaro

1 Answer

My 86 b 2000 is now 25 yrs old and doesn't require emission any more ,can i buy a different carb. and exhaust manifold and if i can whats the best carb and manifold do i use?


I didn't know anybody even used carburetors after 1982. By that time, it was cheaper and easier to meet clean air standards with fuel injection, and if done right, fuel injection provides better performance anyway. You can tweak performance with different manifolds, improved exhaust piping and possibly a turbocharger. There may be a "high-performance" ROM chip for your engine computer; this permits a greater fuel delivery under acceleration conditions.

Note: some smaller engines used a single throttle body injector rather than one for each cylinder. Theoretically you could replace this with a carburetor, but modifying the engine controls to work correctly with it would be a nightmare.

Apr 04, 2011 | 1986 Mazda B-Series

2 Answers

How to improve the performance of a ga 13 engine of a nissan sentra?


Let me tell you that I'm also working on that. :-)..
A nissan ga13ds, since it is carbureted, then it is limited on the amount of modifications that are of good value for money, since some of the top end modifications may cost you the price of a brand new nissan sentra + modifications.
Here are some things I did and are planning: -Replace the stock fuel filter assembly to a high performance one. (ex. to a High flow air filter, cold air intake, short ram intake, etc.) -switch to an electrical fuel pump. -upgrade exhaust system. (performance headers, high flow catalytic converter, larger exhaust pipes, racing mufflers. -upgrade to a better radiator (aluminum) + stronger and better fans. (a cooler engine runs a bit faster) -Install an oil cooler again for the same reason of better cooling. -(just my idea) Buy a performance carburetor. (this may be too costly because you might have have an intake manifold custom built) -Replace engine internals to race internals for better performance under High RPM. -Find or custom build racing camshafts to replace your stock. (this will result to better performance at high RPM levels but will not be efficient running the car in a lower RPM range).
You can also improve the performance of the car itself by doing the following: -Saving weight: -Aluminum wheels -carbon fiber/fiberglass/aluminum hood and trunk. -and any other stuff not necessary to you can be removed to save more weight.

I hope these ideas help.

Oct 09, 2010 | 1996 Nissan Sentra

2 Answers

Chevy hedders


Headers are a tubular fabricated replacement to your cast iron exhaust manifolds.

Apr 19, 2009 | 1984 Chevrolet S-10

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