Anyone familiar with these Muffler?

[avahdani]

Anyone can tell me if they know these parts? also what motor will fit? ONEone muffler is for earlier engine and one for later. it seems to me M&K maybe?

[famoroso]

All looks VERY M&K to me, including the packaging.

[RarlyL8]

All M&K.
The headers are our medium length tuned RSR headers. The secondaries are attached with v-bands which was an option.
The mufflers are MKM27 dual inlet single out, one for G-body and one for Early 911.
A few years back some of these items were stolen and reproduced by a former fabricator. They were selling them out of Wisconsin. The law suit is still ongoing. These pictures look like those items. I would verify where they came from before purchasing.

[darrin]

avahdani -- the first 5 pictures (and the 8th picture) each show headers (which connect between a 911 engine's exhaust ports and mufflers. Each of these headers would then connect a single bank of 3 cylinders to a separate inlet on a muffler (a "2 in" muffler). 1989 carreras (believe you have a 1989 Carrera) use a header system that terminates into a single outlet that feeds a catalytic converter (required for registration in California) and then feeds into a "1 in" muffler. To use the mufflers in the picture, you'd need to both swap out your Carrera's stock header system and have a way to register you car in California w/o emissions equipment.

[avahdani]

@RarlyL8.

Thank you for clarifications. This is few parts which is listed for sale on another site. I am hoping to update my stock system. So you mentioned they are M&K but not produced by M&K and is a replica? I don't know the seller and only communicated via phone. Do you recommend the header and G body muffler? are they very loud? do you recall how much were they?

@darrin, thank you for your help. yes it has to be installed after smog check. and hopefully not pulled over unless is loud.

[RarlyL8]

If the seller is in Wisconsin these are likely the ones that were stolen. Obviously I don't recommend purchasing merchandise that may be involved in an ongoing law suit but that's up to you.
We still manufacture all of these items. If you would like more information shoot me an email or call.

[Mr. Merk]

Brian, this is unfortunately an all-too-familiar scenario. I hope you get what's yours and they get what they deserve.