[Tufast]

I'm not sure which Genesis this is from, sedan or coupe? But, it is definately restrictive.

I wanna thank bkmania for the pics & Gencoupe.com for finding them.

 

[Sabbasaun]

I'm not sure which Genesis this is from, sedan or coupe? But, it is definately restrictive.

I wanna thank bkmania for the pics & Gencoupe.com for finding them.

Yeah I've seen those pics before. I can't believe they put that crimp in the exhaust! :dunno:

 

[gsxtuner]

Holy wow, yeah exhaust will def. have to be swapped out regardless, Thing i'm kinda worried about is the factory muffler tips. As they are pretty much molded intot he bumper how the genesis would look with a saw magnaflow oval tip there. (i'm a huge fan of magnaflow mufflers for a custom 3" exhaust) had one on both my DSMs and my tiburon (2.5" single exhaust)

 

[Sabbasaun]

Holy wow, yeah exhaust will def. have to be swapped out regardless, Thing i'm kinda worried about is the factory muffler tips. As they are pretty much molded intot he bumper how the genesis would look with a saw magnaflow oval tip there. (i'm a huge fan of magnaflow mufflers for a custom 3" exhaust) had one on both my DSMs and my tiburon (2.5" single exhaust)

I've thought about the exhaust tips as well. My thoughts was to maybe make some inserts that a round or oval tip could fit through so as to make it look better.. Who knows it may look ok with some oval tips or maybe someone will come out with a tip just for the coupe.

 

[Tufast]

I've got MagnaFlow on my BMW & love the sound. Not to mention they free flow straight through pretty well. As for the rear exit for the exaust on the GenCoupe, I'm going with an aftermarket CF rear Diffuser the will accomodate twin round tips on each side similar to a pic of a white one I seen earlier.

Now. they just used the factory rear valence & installed the 4 tips & looks fine.

 

[romingen]

i like the road race exhaust it uses a magnaflow muffler i belive and also has doal doal tips but they are slated to match the bumper angle it looks really cool cant wait for news on pricing must have for me

 

[DayDreamer]

Mmm... I <3 RRM... All my paychecks are belong to them...

 

[[email protected]]

 

[willyolio]

ooh. that muffler looks really light. how much of a weight savings from stock is that?

 

[srt4evah]

That's got to be a V6, it has two connections at the front where it bolts to the cats, and you can see the two cats there too.

What a horrid looking stock exhaust, big fat resonator case and it necks down to a single pipe, then back to a muffler? Ugh, true-duals for that V6, with an x-pipe, would be a great setup if the weight can be kept down.

 

[morrjr]

I don't know where that exhaust came from, but the exhaust on my 3.8 Track does not have that huge resonator shown in the picture. The piping on my car looks more like the exhaust from RRM shown in one of the posts above.

 

[Tufast]

I don't know where that exhaust came from, but the exhaust on my 3.8 Track does not have that huge resonator shown in the picture. The piping on my car looks more like the exhaust from RRM shown in one of the posts above.

Read the OP, it states that not sure whether exhaust is off of sedan or coupe.

 

[morrjr]

Read the OP, it states that not sure whether exhaust is off of sedan or coupe.

I just checked the HMA Service web site, and that system is neither from the sedan nor from the coupe. What that pictures shows is the middle section of a 3.8 sedan exhaust system (the part with the huge resonator) bolted to an entire 3.8 coupe exhaust system from the headers back. The picture is not representative of either system.

 

[Tufast]

I just checked the HMA Service web site, and that system is neither from the sedan nor from the coupe. What that pictures shows is the middle section of a 3.8 sedan exhaust system (the part with the huge resonator) bolted to an entire 3.8 coupe exhaust system from the headers back. The picture is not representative of either system.

I'm not sure then what it's off of :dunno:, I got the picture a very long time ago from gencoupe who got it from bkmania. Later on a made a thread around Christmas time of that pic alone showing the restriction.

Maybe it is off one of the earlier models from Korea, maybe even one of the 1st sedans, or possiby a TIburon, since the Tibs have similar tips, just don't know.

If anyone wants to take the time to find out what it belongs to, feel free. I'm curious since I know that the Genesis & GenCoupe have similar crimped areas of exhaust, but not curious enough to research it myself.

 

[morrjr]

Crimping does not necessarily decrease flow: on the contrary, it can actually increase flow. It's called the Venturi effect. In a Venturi system, gas or liquid leaving the narrowed section has an increased velocity, which pulls more gas or liquid with it.

Here's a link to a description of the Venturi effect:

Venturi effect - Everything on Venturi effect (information, latest news, articles,...)

 

[dic51]

This is interesting, as I have heard of this before, but never considered it to be a possibility in an exhaust. But would there be any cost effective way to test it in an exaust to know if it excists in a particular setup? Or if replacing the "crimped" section or entire system is going to have a adverse affect?

 

[Tufast]

Crimping does not necessarily decrease flow: on the contrary, it can actually increase flow. It's called the Venturi effect. In a Venturi system, gas or liquid leaving the narrowed section has an increased velocity, which pulls more gas or liquid with it.

Here's a link to a description of the Venturi effect:

Venturi effect - Everything on Venturi effect (information, latest news, articles,...)

Yeah, I've learned alot since the origination of this post & have studied a little regarding what you are talking about. Also looked into the myth of back pressure & started a thread on that as well. This is sorta like when a smaller diameter exhaust can actually increase air flow on a certain set up because it increases velocity therefore causes the exaust gases to be pulled out of the tail pipe quicker. (very simple description).