TwinDad
Autocross Newbie
- Location
- Fort Lee, NJ
Also guys note the GTI catback is NOT a standard 2.5”. It’s more like 2.7” OD. I had to get a custom 3” reducer made from a 3 to 2.5” enlarged at a muffler shop.
It's actually metric. the gti is closer to a 2-1/2" id and the golf is 2-1/4" id. A 2-1/4" od will slip inside the golf pipe nicely. The 2-1/2" od is a little tight for the gti, but you can cut some slits into the 2-1/2" and get it in.