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Bought a TCR Muffler for my US spec Mk7.5 GTI

nosmirk

Ready to race!
Location
SoCal SGV
Car(s)
19 GTI SE DSG
Thinking about ordering one of these for my 2019, but I see that the oem exhaust is 60mm whereas the TCR piping is 65mm. I would rather use a clamp than have it welded, but I can't seem to find any reducers between those size or an adaptor.

Has anyone with the 60mm stock exhaust had any luck as far as clamps/adaptors go?
I tried 3 different ones, none of them worked good enough. There was one that might've worked but it was out of europe and $20 shipping (and 2 weeks+) for a $10 clamp, which I was too cheap to try.

cliff notes version of shop suggestions if you dont want to read my rambling post from a few pages back:
weld it.
expand the 60mm end up to 65mm and use the OEM 65mm clamp
compress the 65mm TCR end to 60mm and use the OEM 60mm clamp.
weld a 65mm sleeve over the 60mm and use the 65mm clamp.

shop time estimates were 1hr (min charge) to 2hrs, so I ended up just having them weld it so I would've have to worry about leakages or it coming loose.
 

scott59

New member
Location
Southern Arizona
When I did mine I wrapped the joint with some "Tiger Patch" muffler/tailpipe quick patch, then put 2.5" (63mm to 67mm) lap joint band clamp on, seems to seal okay.
Just don't get the Tiger Patch too hot, can be pretty messy.
 

Desslok

Autocross Champion
Location
PA
Car(s)
2019 Rabbit
When I did mine I wrapped the joint with some "Tiger Patch" muffler/tailpipe quick patch, then put 2.5" (63mm to 67mm) lap joint band clamp on, seems to seal okay.
Just don't get the Tiger Patch too hot, can be pretty messy.

How do you keep exhaust pipes from getting "too hot" ?
 

BlackT5

New member
Location
Simi Valley CA
Car(s)
2020 GTI SE
Anyone try an exhaust pipe expander like the ones you can get at the auto parts store? Some might even rent them.

Enlarging the 60mm pipe might not be that hard.
 

SPLR337

New member
Location
New York
Car(s)
2019/1997 GTI
Anyone try an exhaust pipe expander like the ones you can get at the auto parts store? Some might even rent them.

Enlarging the 60mm pipe might not be that hard.
Interested as well, they are pretty affordable. Didn't know it would be near impossible to find a 65 to 60 mm reducer anywhere.
 

nosmirk

Ready to race!
Location
SoCal SGV
Car(s)
19 GTI SE DSG
Autozone loans them out (O'reily too), I asked about it at the counter, the guy said it wasn't easy to use for the first time. So if I wanted to have circular pipes afterwards, instead of an octogon, get some spare pipe (buy or salvage) and practice a few times before using it on the car.
 
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