How to undo / weld shut a Pedro exhaust????

[jmatta]

Yours must have been modified improperly...

[idheaton]

Maybe you could find some high temp silicone plugs that are used for powder-coating that might fit

[23109VC]

Originally Posted by jmatta

Yours must have been modified improperly...

I dont know if my bypass pipes are "wrong" but they are somewhat different than other ones I've seen here..

i didn't have these done, I bought them this way....

the bypass pipes I have seen on this forum usually come right off the muffler inlet and then go into the sides or top of the exhaust tips. mine go into the tips the way everyone elses do... BUT the other end of tye bypass pipes is welded further back up the exhaust system..actually in the "u" pipe that connects the muffler to the secondary cats...

i dont have a pic but I drew some lines on this pic below. the GREEN lines are where I beliee the bypass pipes are normall welded.... the RED line is how MINE is setup..

you can see that in effect, my bypass pipes are probably longer than they need to be and they feed of an area wher ethe ehxuast is going around a bend..not sure if that would have ANY effect on sound or not??



i dont mind how my exhuast sounds at WOT, but when it's idling and i just blip the throttle or at partial throttle and at low speed, rather than having a deeper / throaty sound, it has a nasty sound that to me - sound like something is wrong..it sounds like a hole is in a muffler..that's what it sonds like to me... at least from teh cockpit that is how it sounds.. i dont care for it.

i've driven it a day and a half now with corks shoved up the bypass pipes and I am 10x happier. yeah, it's too quiet, but it still sounds bad a$$ at WOT with the intake wail...and that nasty weird sound at low rpm is gone.

i'm going to pay some muffler shop to just weld the holes in the tops of the tips shut... then down the road, if someone wants to buy this or I sell it - i can just drill trhough and someone else can have it / try it...

ifa nyone wants it let me know... maybe someone else will like it..sound is very subjective... to *me* it just doesn't do what I want.. so I"m going back to stock.

[mikefocke]

From all the Boxsters that have plowed into something and been totaled.
http://sites.google.com/site/mikefocke2/listsofsources has a list.

[23109VC]

maybe a muffler shop could fabricate some way to plug it...like add threads to the inside of the hole.....and then a plug that would go into it? then I could screw it shut for most of the time, and undo it if/when I wanted it open?

if my bypass muffler is done "wrong"....what is wrong about it and is it fixable or shoudl I just ditch it?

one othe question - if i leave the bypass pipes attached, but plug it up at th tip..then some exhaust gas will get into the bypass pipes....but will get trapped...and won't be able to make it out...so i'm wondering if that will make some sort of weird backpressure situation that will hurt performance? or will the pressure just build up and the exhaust will flow into the muffler normally?

it will essentially have a small "line" extending off the piping that is a "dead end"...not sure if that will cuase probs or not? right now, with my corks in their, it sounds fine and runs fine.. at least it seems that way...

[eightsandaces]

I have a brand new base 98 muffler with 14K miles on it, you don't have to weld ********************, just make me any reasonable offer and pay shipping.

[Perfectlap]

there is something sturdier than Opus One corks (does a Brunello sound different than a Bordeaux?). PPabon has posted on here about using boat drain transom plugs which he keeps in the oil dip stick cubby when not in use.

[23109VC]

i saw that thread about the plugs... i guess they withstand the heat??

i'll look into that..although I have no idea where i'd get them.. unless i sourced them online...

although that stuff would probably look odd sticking down into my exhaust tips...you'd probably see them from the rear of the car....

some kind of threaded receptable welded into the hole that accepted a screw in plug might be the best way to shut htem up - but retain the ability to open them back up shoudl I choose to...

if all else fails, i'm just welding them closed... or gert a new muffler.

i'd snap up an NHP system, ,but honestly don't feel like blowing $1000ish on my ehxaust right n ow. i honestly don't mind the stock sound. maybe i'm getting old.... i kind of like it quiet when i cruise....