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Tansey86 · 11-12-2012, 04:18 PM

Actually with a turbo system you want as little backpressure as possible, if you dont have to you should never really go less than 3" for a TBE. Naturally Aspirated on the other hand required backpressure and too big of an exhaust will hurt you.

11-12-2012, 04:18 PM	#1470
Tansey86 Senior Member Join Date: Sep 2012 Drives: 2003 Subaru Outback Location: Long Island, NY Posts: 1,318 Thanks: 154 Thanked 529 Times in 300 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Actually with a turbo system you want as little backpressure as possible, if you dont have to you should never really go less than 3" for a TBE. Naturally Aspirated on the other hand required backpressure and too big of an exhaust will hurt you.