rs4buddy

Hi, for my 94 could I run a downpipe, catless/resonated midpipe, and stock exhaust without having to worry about boost creep? I've searched but haven't found an answer to my exact scenario. Thanks in advance.

Novtec1

iTrader: (6)

im not 100% sure but i wanna say the midpipe will cause the creep even with the stock CB

ArmenMAxx

iTrader: (21)

I ran 3inch dp,mp and rb dual catback and experienced slight creep. Added a 2.75inch restrictor plate and the creep went away.

With that said you should be fine with the stock carback. Its pretty restrictive.

j9fd3s

iTrader: (3)

my friend ran DP/MP on an otherwise stock car for years, and it was fine. he beat the %&it out of it too, AND on 89 pump. dunno about creep we never checked

that being said, i think a DP, stock cat, and catback of your choice is probably a better setup overall.

rs4buddy

Nice thanks guys! I wonder what it would sound like.

Spalato

iTrader: (33)

DP, MP and CB...your neighbors will love you!

Spalato

iTrader: (33)

EDIt: just realized you will leave the stock cat back...hmm who knows how it will sound. Let us know. I have stock DP and Cat and just with Blitz Nur Spec it got really louder...but you're going the other way around...

Nakd n Fearless

iTrader: (4)

I would really love to hear how this sounds (Downpipe, Midpipe or HiFlo, Stock Catback)

Montego

iTrader: (1)

For a while there I was running a dp, resonated midpipe, and a stock catback. With that setup MY CAR did not experience any boost creep. As soon as I changed to a rb catback I got creep to 12 psi. Note that every car is different so when you slap on those mods make sure you keep an eye on your boost gauge (you better have one).

As far as sound was concerned: the car sounded good. A little throaty at idle, quiet at cruise, and not too loud at wot.

j9fd3s

iTrader: (3)

it gets a little tinny, but it stays pretty quiet.

00SPEC

iTrader: (9)

very interesting scenario, may I ask why u are keeping stock CB?

Speed of light

iTrader: (8)

I agree with the forgoing statement. Note that the stock catback IS the single most restrictive piece in the stock exhaust system, followed by the stock DP/pre-cat. Interestingly enough, the stock main cat is a very good flowing piece, comparatively speaking. (This info is derived from actual flow tests.)

djseven

iTrader: (56)

Had several fds with this setup, assuming all else is good you shouldnt see any creep. Should be easy to control at 10lbs. Will make more power with the stock catalytic converter and afertmarket catback and still easily control boost though.

j9fd3s

iTrader: (3)

yes, it was nice of you to post that info!