installed a new cat. converter - Honda Prelude Forum

james168 · 07-16-2005, 06:07 PM

Hey guys I just went from a 2.25' cat to a magnaflow 3' universal cat. the car is running only 10psi of boost and that setup was tuned with the 2.25' cat. do i really need to get the car tuned again or is it safe to drive the way it is now? thanks for any help

JaXx4k · 07-16-2005, 10:50 PM

is shouldnt need a retune.... but FYI i had a 3" highflow boostin 10 psi all day long... n after 3000 miles the cat is clog.. i had to remove it n gut it... so i dont suggest it...

james168 · 07-18-2005, 10:55 PM

thanks for the reply jaxx. what brand of cat were u using btw?

JaXx4k · 07-18-2005, 11:06 PM

carsound cat...is on the car only to show cops/state inspection that i DO have a cat...lolz

sharkcohen · 07-18-2005, 11:17 PM

I would suggest a retune. I have personally seen a/f differences when changing exhaust components.