blacksheepSpyder

was changing oil this weekend, Put the wife on the dolly and slid her under the car (up on the lift) and she says


"whats all this black stuff"


I looked and it was exhaust soot by a weld seam on the stock muffler - pass side.


I cleaned it off and lo and behold, there is a pin hole in one of the weld seams.


Is my muffler the only one with this bad weld issue?

extanker

some mufflers are made with a drain hole in them ....so they do not rust from the inside out. check your other muffler. If it is a bad weld a muffler shop can do a quick weld or maybe muffler exhaust patch. you do not say what year...under warranty ?

blacksheepSpyder

not a drain hole, its half way up on the chamber

Its definately a bad weld

Its a 2016 spyder with 6007 miles on it.

I left a message with the service manager at the dealer here in Dayton, but he hasnt called me back, (that was Saturday) but I bought the car in Cincy so they likely dont care.

Its this car in the picture...

<------

Perimeter

Does it sound better?

Leuz

I would drill the hole larger :P

extanker

i have suggested that before spending big bucks on a tinkerbell exhaust .....if ya do not like it epoxy a lag bolt in to the muffler ......it did not go over too big with the hair dresser group

RDCR

My car has what looks like a pinhole at one of the welds but it didn't blow any bubbles when tested. Dealer says they would replace under warranty if it did.

BryanCO

I don't recall any other posts of this issue on a GT4 or Spyder.

Since it's under warranty, just have the dealer resolve the issue.

Alan C.

Unfortunately welding is not a perfect process. Is the pinhole in the center of the weld, the weld pool, or is it off to the side in the HAZ, Heat Affected Zone? Could be two different issues.

Should you take the suggestion of drilling and putting in a lag screw be sure to get at a 304 screw.

I'd let the dealer take a look at it. I've seen aftermarket 304 systems fail in the weld area.

blacksheepSpyder

looks like the Dealer here in Dayton is going to help after all. Will keep you posted.