B BenM Guest Mar 18, 2010 #1 What would be a great choice for a catalytic converter to increase performance and sound with a 4-2-1 header, Pacesetter Cat-back, and a cold air intake? Without making an annoying sound(obnoxious)
What would be a great choice for a catalytic converter to increase performance and sound with a 4-2-1 header, Pacesetter Cat-back, and a cold air intake? Without making an annoying sound(obnoxious)
