Bedfordman

My 928 came with the Cat in a box. see picture -- think this is the OE one, complete with air pipes.

So, other picture shows what is on the car. Is this an X pipe?

(There is nothing for the air pump system to do-- on this car the belt is removed and from the rust on the pulley looks like this happened some years ago).
Peter

Mrmerlin

I dont recognize that X pipe its definitely not from Motorsport Utah dont destroy those factory cats

Bedfordman

Sold the OE Cat on Ebay ! Incidentally : it weighed 11 Kgs ( 24lbs), so a potential for some worthwhile weight reduction.

mike77

You are in the UK? I suspect you have the Ritech x-pipe

http://www.nixsoft-consulting.co.uk/...hp?id=products

I have this and the silenced RMB installed. Awesome! If you want the car to sound mean then put the RMB on as well.

Mike

Marti

Yep, looks the same as mine which is Ritech

Imo000

Do your eyes water now when siting at the red light?

hacker-pschorr

Mine never do in any of my cars without CATS and that includes one with side pipes (not a 928).

Mrmerlin

what will happen without cats is that the rear PU cover will start to get a bronze haze on it from exhaust gases,
simple green takes it off followed by a wash with car soap then a good wax.

Imo000

Your 928s without catalytics don't stink when you are sitting at the lights with the windows down? Mines do.

BIMMERMIKE

Mine does and I like it!

SeanR

Amazing what a proper tune will do for a car.

Adamant1971

It's the smell of horse power. That's what I tell the wife and kids.

fst951

The crossover shown is not made my Motorsport, Inc. The angles are definitely wrong and rob you of some horsepower. It probably sounds better than factory, however.

Thank you.

paalw

We no longer need dynos, we have fst951? Just curious, how can you say that from just looking at a photo? Is it only you, or are others also able to see this?

DuncanF

Ritech in the UK who sell this particular X-pipe have dyno graphs on their website indicating an increase in horsepower