M42club.com - Home of the BMW E30/E36 318i/iS

DISCUSSION => Engine + Driveline => Topic started by: zzuzi on August 17, 2010, 06:07:55 PM

Title: Exhaust question
Post by: zzuzi on August 17, 2010, 06:07:55 PM

Hello m42 fans!First sorry for my bad english.I have E30 with 318ti engine!I want to make custum exhaust,but i'm not sure about the diameter and should i use resonator befor the rear muffler.The car has chip and K&N air filter.The sound is not important,only the power:D.Thank you for the support.

Title: Exhaust question
Post by: jscribble on August 17, 2010, 07:21:03 PM

2.25 inches or 2.5.

Title: Exhaust question
Post by: deekay on August 17, 2010, 07:21:31 PM

if you use straight-through muffler/resonator (which you will probably want to for peak power), you're going to want both... i have one of each and my car's still kinda loud. my setup is 2.5" after the cat.