what high flow cat?

[m30power]

looking to have a 2.5 in/out high flow cat to 2.5 inch single pipe all the way back to my remus muffler. for a 91 325i, what high flow cat would you recommend, and should i use a resonator?

[m30power]

also 2.25 or 2.5 inch piping? i want it to sound good haha

[dpgrand]

magnaflow or random tech cats.

[JasonC]

Bigger the pipe, the deeper the sound.

I had a Magnaflow 3" cat on my Daytona and Firebird. It's not to bad, nice and compact too. So +1 on Magnaflow if you was to run a cat.

[m30power]

and im looking for a high flow cat with no oxy sensor hole right?

[slim_l2002]

im using a 2.5 in/out magnaflow hi flow cat as well.

[dpgrand]

and im looking for a high flow cat with no oxy sensor hole right?

correct

[mikekristine325ic]

im using a 2.5 in/out magnaflow hi flow cat as well.

Same here. Sounds good with a Magnaflow muffler as well!

+2 for the Magnaflow!

[alpinweib30]

never used one but i just emailed the seller to see if he can get 2 1/2"

http://www.siliconeintakes.com/product_info.php?products_id=320

note: CHECK THE PRICE :)