GTI Jake
Autocross Champion
- Location
- Charlotte, NC
Have you tried any of these on your turbo? The OEM IHI outlet is just over 4” OD.
The flange I posted is actually for a Borg s400, but I wanted proof of concept that the 1D 4” elbow would fit (which it kind does, but needs to go fwd to clear the ABS module).
Personally I think a 4” downpipe on a MQB car is overkill, but people swear by it being a e85 > 93 like gain so I’m curious enough to at least entertain the idea.