shammerman

Long story short... I was looking at doing the Gundo hack, but now considering doing the "bypass surgery" instead. The question is Sharwerks or Fabspeed.

Opinions and comments requested!

Rocco07

I have the Sharkwerks and think is perfect.
They're not all created equal. There's a difference between a crossover, where left and right side exhausts stay separate, and a x-pipe, where the left and right sides exhaust actually combine. I don't know if that would result in a performance difference between the two configurations.

shammerman

I would think that the claimed (and real) performance gains are small and not necessarily measurable in accelleration times etc. even if there is a gain of 12-16 hp on paper on the dyno. I am really more interestested in the sound of the systems.

Mark Harris

I have Gundo and Sharkwerks. If you want to hear mine in person and are ever down in KC (Overland Park) let me know.

Regards..

shammerman

Thanks Mark - did you do both at the same time or one or the other first. If so, can you tell me what the impact was?

DallasDave

I just installed a full FVD system so I have a Fabspeed x-pipe I had removed and will be posting for sale with very low miles - have the original box too. Need to take pictures for posting.

The sound was fantastic, but not outrageous.

Will be taking offers.

shammerman

Dave -

I am interested. PM sent.

nota_troll

I have Fabspeed and it sound perfect for my daily driver.

Yet anothercrisis

Sharkwerks here. I am pleased.

rijowysock

on the DFI, the best combo i found is the fabspeed center bypass and gundo hack sides (nice tone). the sharkwerx is great as well but much deeper sound (too low for me, i get frequent migraines)

you need both, i tried just center, just sides, fabspeed center and side bypass, just hack, center and hack. etc.

DallasDave

Will respond with photos and info.

Dave

DallasDave

Photos, info and actual sound clip I made before removal have been sent.

Dave

c4sdriver

Anyone have a copy of either sharkwerks or fabspeed installation instructions?
Could you post it?
Thank you.

DallasDave

Guys - the Fabspeed is sold. Thanks for the inquiries.

Dave

rijowysock

what did you end up doing?


to go into more detail:

997.1 all you need is the gundo hack, pops and burbles on downshift... nice growl but not too loud.

997.2 the DFI and restrictive cats and extra muffler makes the car VERY quiet stock.

Gundo hack on 997.2 add's just a little extra sound, but mostly add's a slight PSE sound... very slight..

X pipe on 997.2:

Sharkwerks has a deeper sound, like the car is almost a v8 or so.... by itself the sound is very tame, but adding the gundo hack makes it sound like a muscle car... very sexy but not drone/loud.

Fabspeed has a more tuner sound, (think ferrari), not as deep, more lively sound.. by itself it's again not very noticeable, but with the gundo hack you can hear it well..


gundo hack benefit: at start up the car growls but then gets VERY quiet once the rev's calm down and engine warm... this means DD with the hack is very simple and calm (ever heard a stock g35 pass you, sexy and calm)... when you get on the rev's the hack comes alive and the car sounds amazing...

as far as bypassing side cans with center X pipe=too loud.. i have done that with both center pipes.. it's basically "straight pipes".


end notes:

997.1 with hack=all you need
997.2 with hack=you need to bypass the center muffler/resonator as well for any sound gain..


please let us know what you end up with.. on my 997.1 and 997.2 i tried every combo of parts for the best sound and my final outcome (which stayed on the car till the day i sold it) was Fabspeed X pipe and gundo hack sides..