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blue91lx · 09-22-2014, 10:51 PM

Alright, lets talk exhaust.

I picked up the Magnaflow 16535 catback, and am going to go with the IE Long Tubes (stage 2, they call them, lolz).

My question for you lies in the midpipe design. My end goal with the car is basically a ported head, IE Billet 272 cam, and ITBs on the stock bottom ended M20.

I want to make sure I'm not going overkill by straight piping and deleting the cat (doing this for power, not sound), so I wanted confirmation on that subject, and also, want to know what diameter piping I should run in the mid pipe for duals. Also, for flow, do I have to cross the mid pipe at any point?

Long tubes have 2.25" open collectors, and the Magnaflow (supposedly) has 2.5" OD piping, before the muffler.

What are your thoughts? I don't want to go overkill and make this all worthless by losing too much backpressure.

09-22-2014, 10:51 PM	#10
blue91lx Tri-State Post Whore Join Date: Sep 2011 Location: Indianapolis/SE PA Member #21697 iTrader: (0)	Alright, lets talk exhaust. I picked up the Magnaflow 16535 catback, and am going to go with the IE Long Tubes (stage 2, they call them, lolz). My question for you lies in the midpipe design. My end goal with the car is basically a ported head, IE Billet 272 cam, and ITBs on the stock bottom ended M20. I want to make sure I'm not going overkill by straight piping and deleting the cat (doing this for power, not sound), so I wanted confirmation on that subject, and also, want to know what diameter piping I should run in the mid pipe for duals. Also, for flow, do I have to cross the mid pipe at any point? Long tubes have 2.25" open collectors, and the Magnaflow (supposedly) has 2.5" OD piping, before the muffler. What are your thoughts? I don't want to go overkill and make this all worthless by losing too much backpressure.