I've been searching and seeing a bunch of muffler bypass choices out there, please advice me on how your experience have been with a certain company. I guess after such a long time browsing and reading, I decided to go for it, but dont know with which company/product. Would you advice a muffler bypass or a new set of mufflers?
Thank you all!

 

You don't need any advice on a muffler bypass..thats just tubing that connects the cats directly to the muffler tips. Any decent muffler shop can build you a set cheap. I have a set of Fabspeeds if you want I'm selling for $75.

As far as mufflers..I have the Borlas. I owned a set of AWE's before the Borlas and they have a nice "song" under load. If you want something a little more raunchy and aggressive I like the Borlas. I heard Fabspeed's and they sound great with a set of race cats, by themselves both the Fabpspeeds and AWEs I found to be to tame.

Afterhour mufflers are really just muffler bypasses with small glass packs welded on them. I was going to go this route but with the high flow cats it was to loud, not for me but in Cali it will get you a fix it ticket for noise control.


Dave

 

Best advice - do not do it. It is not possible to tolerate.

If you want to hear it - take off your stock mufflers and start up the car. That will give you very clear picture.

Any complete solution will work good - cats plus mufflers (plus headers if you have C2S). I run on Fabspeed and love it, other folks use FVD, AWE, etc.

 

Thanks utkinpol! I think I'm just worried about the welding on my stock setup, it will leave marks, bad for resale?
Dave's got a set of Fabspeeds, I'd like to give them a try. There are some decent vids on youtube but of course, it must be really different in real. Have you used them as a DD?

I also think about X51 headers, AWE 200cpi Cats with Borla mufflers (video) or go with Supersprint Race full exhaust system.

Sorry about all the fuss, but I wanna make my decision once and go for the best sound/power gain.

Dave, pm sent

 

Actually I love the way it sounded with the 200cpi cats and MBP, but unfortunately the law in my area felt differently

Dave

 

Thats my car in the video... It was with X51 headers, AWE cats and the Borla..never even got on the gas in that video..just blipped the throttle to 1500rpm or so. If I do more than that it pisses my neighbors off.

 

It was yours?? HAHA! I love it! From an experienced mod user, what would be your final say on my undecisiveness

 

I use Fabspeed pipes on my DD car. They are very civilized. A lot of bass but no excessive vibration nor droning.
I run their X-pipe 200 cell cats and sport mufflers. If you want less loud mufflers they now have new 'switchable' version which can be quiet or loud depending of how you connect pipes.

One only thing - if you do it yourself use some muffler tape or scotch aluminum tape under stock clamps that connect muffler pipes to cats, or get completely new ones as stock clamp I think was never intended to be reused - my exhaust was constantly leaking in this connection and it was causing nasty sounds. As soon as I sealed this spot properly and eliminated all the leaks it finally started to sound perfect - good bass when on gas without any high pitch tones and acceptably quiet on idle.

Other thing - when you put it on make sure you bend fender rods so there is no contact with mufflers at all. Or just let someone qualified to do the install.

 

Don't blame you..a lot of choices out there. I have to say coming out of Mustang SVT's and then M3s I was quite pleased with the aftermarket available for the Porsche. Mustang and M3 owners tend to be quite young vs. PCar owners..well my experience anyway and were always looking to mod. Porsche aftermarket parts I find quite available and not that overlay expensive. I thought parts for the M3 were more expensive than the Porsche. A set of headers and 100cpi cats for my E46 M3 set me back $3500, then the midpipe and Borla cans was another $1500. I put my whole exhaust system for the Pcar in under $3k.

You will love the sound..the mono microphone that my camcorder has in no way represents the true volume of the sound.

Dave

 

Great advice on the clamps for the connecting pipes. They distort and they loosen all the time after they have been removed a few times.

Dave

 

Unless you really want it to be loud, I mean really loud, I wouldn't do a bypass. The sound is really loud and it drones a lot in the cabin. I'd recommend doing a system from a good manufacturer like Tubi, Cargraphic, or AWE. You'll get the nice sound you want, but the volume won't be intolerable.

 

I splitted probably 4 or 5 carriage bolts in half, literally separated their heads from bodies trying to tighten this stupid thing up properly - bolts were bending, nuts coming off, also tried to take clamp apart and rotate internal copper elements over in different positions - useless waste if time.

Only way for me was to put excess amount of aluminum scotch tape on pipes (be careful - leave 4-5mm clear near to the edges so it would not be sucked into exhaust), then got clamps to slide carefully over it (WD40) and tighten it up with 2 nuts on each of new carriage bolts - 5/8 ones from homedepot.

I tried some pipe connectors from autozone but could not find ones that would fit properly on Fabspeed pipes with no leaks. So, after several runs scotch tape melted off inside, I removed excess on edges and it sealed this joint permanently.

 

Borla > thunder?

http://www.youtube.com/watch?v=uJA2cqMnN64

 

^^ there seems to be a lot of distortion in that video. Sounds like the speaker is crackling and popping.

 

Yeah, I think so too, but boy does it sound great though!