High flow cat

[srad168]

Looking to install a high flow cat on the 525. Any recommendations?

[5mall5nail5]

Don't.

I know OE is expensive, but I've put high flow cats on cars and find them in pieces usually blocking the exit of the cat in only about 5 - 10k miles.

[m60power]

The OE cat is the best quality you'll find. Either leave it in, or if it has failed just remove it.

[srad168]

Straight pipe will give it more power than high flow cat?

[DarienFalks]

Don't.

I know OE is expensive, but I've put high flow cats on cars and find them in pieces usually blocking the exit of the cat in only about 5 - 10k miles.



He's right. I have Magnaflows and they broke apart pretty quickly. I was also throwing o2 sensor codes before my valley pan job. Your cars gotta be running perfect or they die fast.

[m60power]

Straight pipe will give it more power than high flow cat?

It won't make it any less powerful.