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BRZ Guy · 05-07-2019, 08:28 PM

I’m reviving this post as I have a question on the EVOlution that’s similar.

So I currently have the EVO 3” exhaust and it’s flange connects to my OEM front pipe with Greddys provided bolts and flat gasket, doing away with the donut (as per Greddy’s instructions).

I’m about to order a JDL 3” Over pipe / Front pipe combo and have no clue on what flange I need to connect to the EVOlution flange.

JDL’s rear flange choices are:

3.0 flat flange
2.5 flat flange
2.5 OEM donut style

Please help, I’m getting different answers.

05-07-2019, 08:28 PM	#5
BRZ Guy Member Join Date: Oct 2018 Drives: 2018 BRZ Location: Toronto, Canada Posts: 35 Thanks: 8 Thanked 5 Times in 5 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I’m reviving this post as I have a question on the EVOlution that’s similar. So I currently have the EVO 3” exhaust and it’s flange connects to my OEM front pipe with Greddys provided bolts and flat gasket, doing away with the donut (as per Greddy’s instructions). I’m about to order a JDL 3” Over pipe / Front pipe combo and have no clue on what flange I need to connect to the EVOlution flange. JDL’s rear flange choices are: 3.0 flat flange 2.5 flat flange 2.5 OEM donut style Please help, I’m getting different answers. Last edited by BRZ Guy; 05-08-2019 at 12:25 AM.