Best Exhaust kit

[xXxGhotimanxXx]

^What exactly is this hack? J

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[Bonerwall]

Originally Posted by Matt(in MA)

a couple of comments:

1- Gundo did not remove his "hack"... he removed is bypass pipes which were wicked loud... think no muffler... and then implemented the mod.

2- There is no in car droaning etc. that some aftermarket pipes cause within the car. It's not too loud and not too soft... just like goldie locks... it's just right

3- if you want to spend $1,000+ then you should forget about this modification. I had a system on order before I did this and once I heard this I canceled the order. And if you don't like the mod it's not like you invested big money. If you don't like your aftermarket kit... well that is big money

4- There is no compromise to the exhaust flow... remember this is at the mufflers .... right when the gasses are leaving....like the PSE

for me it's a no brainer... again if you don't like it then you've not invested much...


Matt

I am still lost. What exactly is this "hack"? Who does it? Do you have to take the stock mufflers off the car and send them someplace? Details please.

[mobonic]

Gundo Hack explained: http://renntrack.com/forums/showthre...?p=848#post848

[Matt(in MA)]

Pictures tell it all. It's the short pipe between the two long ones in the pictures via that link.

You have to take the mufflers off... very easy... 12 bolts and 1 hour. I then took the mufflers to the Midas guy along with pics from that link and did in fact say "do this please".... $150 total(for both ) later I was home painting the new welds and cross over pipe with high temp paint and reinstalling the mufflers. I think it took me more time to make sure the exhaust tips were striaght

Matt

[mobonic]

Spot on Matt.

Ha ha ya the tips take way longer to put on and adjust!

[MLindgren]

Originally Posted by mobonic

$300 ........ I got my hack done at a muffler shop for $80

Cheapest and best mod on my car so far!

The $300 included buying somebody's take-offs, having them sent to FisterD, having the hack done, and shipping them back to me in Michigan from Mexifornia. I was hesitant to hack my OE cans as I wasn't sure I would like the hack. After about 30 seconds I knew it was the ticket and have since donated my take-off cans to somebody else who wanted to do the hack.

Hope you enjoy your exhaust outlets fighting each other.......lol.

[Bara]

Originally Posted by MLindgren

1) What evidence do you have that the two passages are fighting each other? It isn't like there is more exhaust to pass, just two different paths to take.
2) How is it different than PSE which opens a valve to allow some bypass in much the same manner?
3) Sounds great for $300-no, I don't have a problem with that.

Far better option than people that retrofit the PSE kit then unplug the valve so it sounds full time like the FisterD hack.

im not here to rain on anyone's parade but the PSE system has nothing in common with the hacked muffler.

PSE muffler has 1 inlet pipe going into and 2 outlet pipes coming out of the exhaust can that merge into 1 before the tail pipe. in normal mode, the gas comes in via inlet and out of outlet #1. outlet #2 is connected to a chamber of the exhaust can that bypasses the rest of the can internals. when in sport mode, the secondary outlet is opened up to utilize this internal chamber thus bypassing the rest of the muffler and merging smoothly with the primary outlet.

Gundo on the other hand simply bridges a pipe between the inlet and outlet pipes in a perpendicular fashion.

the inlet pipe and oulet pipes are just about parrallel at the hack point but the exhaust flow inside of them is in the reverse direction from each other. so the exhaust coming from the engine has to make 2 90* turns to point in the direction of the exit.

you dont have to have a Phd in fluid dynamics to see that this is not a smooth flowing exhaust design.

if you just want the sound, then thats another matter

[MLindgren]

Originally Posted by Bara

im not here to rain on anyone's parade but the PSE system has nothing in common with the hacked muffler.

PSE muffler has 1 inlet pipe going into and 2 outlet pipes coming out of the exhaust can that merge into 1 before the tail pipe. in normal mode, the gas comes in via inlet and out of outlet #1. outlet #2 is connected to a chamber of the exhaust can that bypasses the rest of the can internals. when in sport mode, the secondary outlet is opened up to utilize this internal chamber thus bypassing the rest of the muffler and merging smoothly with the primary outlet.

Gundo on the other hand simply bridges a pipe between the inlet and outlet pipes in a perpendicular fashion.

the inlet pipe and oulet pipes are just about parrallel at the hack point but the exhaust flow inside of them is in the reverse direction from each other. so the exhaust coming from the engine has to make 2 90* turns to pint in the direction of the exit.

you dont have to have a Phd in fluid dynamics to see that this is not a smooth flowing exhaust design.

if you just want the sound, then thats another matter

Please tell me what the measurable adverse affect the hack has on hp/torque.

If PSE is that much greater then I would think it has a positive influence on hp/torque versus a non-PSE system, correct. What does Porsche claim as a performance gain on PSE?

[Bara]

Originally Posted by MLindgren

Please tell me what the measurable adverse affect the hack has on hp/torque.

If PSE is that much greater then I would think it has a positive influence on hp/torque versus a non-PSE system, correct. What does Porsche claim as a performance gain on PSE?

you would need to dyno the car to see.

PSE doesnt gain any power because the standard cans are very free flowing as is for the volume of air the C2/S engine pushes. the hack may actually make the car lose a little power because you're changing that free flow design.

my other concern is heat. the hack point could also be seeing elavated temps and with it already being so tight under there, i'd rather just do the exhaust the right way

[Verde]

I considered going with 'the hack' but after speaking with some 6speed'ers about the quality of the various aftermarket mufflers (Fabspeed - but I'm sure the same is true for most/all) and the weight reduction - probably 15 lbs taken off at the rear wheels, and a very good deal on a used set I went for it. I'm not sure what brands suffer from bad welds or bad construction but I believe it's pretty rare.
But many have gone with the Gundo hack (or equivalent) and I've yet to hear anything negative about it from those who swapped it in. For those seeking improved sound only, it seems fine.

[lakercarrera]

how are agency power exhaust kits? did a search and found nothing

[Axxlrod]

Listened to the Agency exhaust video online, and it sounded like the stock exhaust to me.

[lakercarrera]

anyone else have the afterhours pipes besides p0rsch3?

[p0rsch3]

LOL- Yeah there are quite a few members here with them. I am the only blabbermouth though... hehe

I tried the Agency mufflers on my 996- I did like them a lot. They are a good mild upgrade over stock, nice tuned sound. not much louder than stock but they have a much better tone. If you are looking for a solid mild upgrade and keep the quiet interior sound level, they are a decent choice. Plus Dan @ Vivid is a cool guy to deal with.

[mike87]

retrofit the PSE