Mishimoto MMEXH ADAP 3DSE Exhaust Adapter Downpipe Review

No leakage, bolted on. Only problem was that the HKS downpipe was shorter than the stock pipe STi 2015 or later require donut spacers, my 2004 WRX downpipe will not fit

No leaks, bolted on. Only problem was the HKS downpipe was shorter than the stock pipe. Requires STi 2015 O ring or higher My stock 2004 WRX downpipe will not fit

Excellent quality from flange to welds. Beautifully sealed stock exhaust. No complaints if you want a quality aftermarket downpipe for a stock exhaust adapter this will do the job just fine. The stock 2020 STI exhaust is mated to a limited-velocity Grimmspeed downpipe.

Excellent fit for my 2005 Saab 9-2x with 3" Grimmspeed downpipe and OEM STI exhaust. Glad it comes with the whole Hardware and a gasket comes to install it.I think you'll need an o-ring on the other side if you don't already have one.No leaks or other issues,although it rattles a bit as the donut gasket doesn't move bends.

Used to connect an Invidia downpipe to a 2011 Subaru WRX SPT exhaust. Exactly what was needed to ensure a perfect fit with no leaks. The SPT exhaust has a fairly large flat flange that connects to the stock downpipe with a standard O-ring, allowing you to use a 3" two-bolt gasket between the 3" downpipe and the SPT avoid exhaust. but can expire. This ensures that this is not the case.