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[SHIFT_CR]

What size exhaust inlet do i need for the 2.5?

2.5in or 3in?

[adidas2go]

Exhaust is an outgoing process. What do you mean by inlet

[SHIFT_CR]

The inlet is the smaller end that is connected to the pipe of the car.

[SHIFT_COUPE]

I still don't think I understand what the question is.

The piping diameter?The Tip?The flange?

[adidas2go]

He wants to know diameter, but where? Let me help you. No where in your 2.5 exhaust system is there 3 inch piping.

[SHIFT_CR]

Sorry for the confusion. I planning to buy the OBX B9 exhaust:

http://cgi.ebay.com/ebaymotors...ZWDVW

He has it available in a Inlet Diameter of 2.5in or 3in. I dont know which one to get. That is my question. Hope that clears everything up.

[johnny_d]

your best bet is to go measure it urself .......but i think 2.5'' would be your best bet. It might even be slightly bigger than stock on the 2.5L but u can weld it on or whatever

[SHIFT_COUPE]

You don't want 3". You'll end up losing power. Larger diameter like 3" is typically used on forced induction.

[adidas2go]

Well this is a muffler. So you will need to buy 2 of these and weld in new piping from the axle back to these mufflers. Buy the 2.5" inlets, they will fit.