CJWessing

Thinking about having a local muffler shop perform the gundo hack on my 2002 Targa this weekend. Any reason to go with the fister d instead? Seems like the same thing to me, and I think a muffler shop would be cheaper?

02TX996Cab

The concept behind each is the same. However, FisterD have loads of experience doing this mod and have tested various size bypasses to come up with what many think is the "optimum"--I've heard a set and they sound very nice. They also have a sterling reputation for excellent customer service, and stand behind their work (will your local muffler shop source a set of replacement cans for $1500 if they screw yours up?).

You will need to decide if the slight difference in cost is worth the uncertainty on end result.

By the way I do not own a set of Fister D or any other modded stock cans.

kromdom

not much else to add to 02TX996Cab's post above

alpine003

The extra attention to fitment and welds might speak volumes in the future during resale of car or the mufflers themselves unless you know a great local shop with impeccable work.

I would personally do it locally(only because I have my own mig welder) and I'm a cheapskate

wucash

I did it locally cost me 80$ per muffler so $160 all in. Very happy with results. Just took couple pictures of the forums I had and they copied it perfectly.

Philip P

$1500 a set for stock mufflers? People can't give those things away sometimes. Go for it, worst case scenario go on ebay and buy another set for next to nothing.

CJWessing

Gunna take it to the shop tomorrow morning to see if they can do it, will post some before & after videos.

frisbee91

If you trust your local shop, no reason not to do it locally. It ain't rocket science. Just need a decent welder with decent skills.

alpine003

I sold two sets for $150/pair.

wyovino

Pay the two dollars (old vaudeville routine). In the long run, the difference in price will be negligible, but the difference in quality may not be. I would go with Fister. (and I have)

Dennis C

I believe that the traditional gundo hack bypasses one chamber of the muffler, similar to PSE. It involves welding a pipe between the muffler outlet and the cap on the muffler chamber. The Fister modification welds a pipe between the muffler inlet and outlet pipes, making it a partial muffler bypass.

jyoteen

Has anyone opened up a set of the muffler (specifically, if matters, the OE PSE) cans? I have a crazy *** rattle inside, which I can only imagine is the flap that opens and closes?

I have the OE PSE on the car (without the electronics) and was thinking to have it cut open and simply remove the flap altogether or is there some other baffle that ususally is the culprit (weld broken or the like).

5CHN3LL

Rattle cause is often a cat that's chunking apart inside...

Dennis C

Here's the standard muffler cutaway. A PSE muffler has a bypass pipe and valve attached to the cap shown in the photo. I don't know if there's a valve inside the actual muffler - I don't think there is.

Cat rattling is a common issue. I had both of mine replaced under warranty for that issue.

CJWessing

Gundo hack before/after video below. Not quite as much of a difference as I had hoped, but definitely some more growl. Nice and quite at idle and no droning at speed, sounds like a nice stock exhaust. Overall happy with the mod, and good experience with Joe's Muffler in Los Angeles.