Aftermarket Gtr Dump Pipes

[gtr13]

Can anybody tell me the difference between 32/33 to 34 GTR aftermarket dump pipes alot of companies Tomei, HPI , HKS etc list different part numbers for different models a different number for the R34 GTR compared to the 32/33 GTR's is it just the O2 sensor sizing if so can you just use a reducer etc

[R31Nismoid]

Got it in one mate. It's just the O2 sensor bung that's different

Some companies list the same part number, but include an adaptor. So they make them to one spec, but include an adaptor for the newer model sensors.

[GTRsean]

Also r34 Vspec and II etc have exhaust temp sensor mount hole in the back dump.

[MrStabby]

The 32 titania sensor is smaller, so usually the dumps have the larger 33/34 sized zirconia sensor hole, and an adaptor for the 32 sensor. On the xforce splits I bought using the adapter would have only just held the sensor tip into the exhaust flow, and I was concerned they wouldn't work. I had an exhaust shop cut the 33/34 bung off and weld the 32 adapter in to the sensor protruded into the exhaust like they do on the stock dumps.