Symptoms of bad cats?

mbox · 01-21-2006, 06:47 PM

Someone mentioned bad cats as a possibility of some hesitation I've been having and read that bad cats can resemble a vac leak.

I'll probably open them up Monday just to be sure. If they need replacing, I'd think that any high flow cat would work right?

Fwiw, I'm not throwing cat codes b/c of my own 02 non-fouler mod.. Oh, the irony.

Imolavirus@BuehnEngineering · 01-21-2006, 06:54 PM

flow but as far as testing them without pulling them off the car.....that's a tuuufffy :/

AVANT S4 KING · 01-21-2006, 06:55 PM

Im getting some DPs piggie-fied this week, which means id have a pair locally available once i install these...

Captain Matt, I be · 01-21-2006, 06:56 PM

rktskicar · 01-21-2006, 06:57 PM

mbox · 01-21-2006, 07:02 PM

as long as they're the same diameter as the DP's.

S4andTLS · 01-21-2006, 07:04 PM

forced2induce · 01-21-2006, 07:05 PM

mbox · 01-21-2006, 07:12 PM

S4Poor@Curbside · 01-21-2006, 07:15 PM

01-21-2006, 06:47 PM	#1
mbox AudiWorld Super User Garage is empty, add now Join Date: Jan 2005 Posts: 2,724	Symptoms of bad cats? Someone mentioned bad cats as a possibility of some hesitation I've been having and read that bad cats can resemble a vac leak. I'll probably open them up Monday just to be sure. If they need replacing, I'd think that any high flow cat would work right? Fwiw, I'm not throwing cat codes b/c of my own 02 non-fouler mod.. Oh, the irony.

01-21-2006, 06:54 PM	#2
Imolavirus@BuehnEngineering AudiWorld Super User Garage is empty, add now Join Date: Mar 2002 Posts: 17,943	it could cause some hesitation if your cats were to melt enough to cause restriction of the exhaust flow but as far as testing them without pulling them off the car.....that's a tuuufffy :/ __________________ -Jacob ^^^CLICK SIG FOR BUEHN ENGINEERING WEBSITE^^^ <big><big>Website Here!!!</big></big> <big>Items For Sale</big>

01-21-2006, 06:55 PM	#3
AVANT S4 KING AudiWorld Super User Garage is empty, add now Join Date: Jul 2002 Posts: 6,753	rotten egg smell, i believe Im getting some DPs piggie-fied this week, which means id have a pair locally available once i install these... __________________

01-21-2006, 06:56 PM	#4
Captain Matt, I be AudiWorld Expert Garage is empty, add now Join Date: Oct 2001 Posts: 32,081	shredded furnature __________________ Support Innovation for the B5 Platform - www.autospeedperformance.com www.vastperformance.com B5 S4 Forum Cliff's Notes B5 S4 RNS-E Nav+ Installation

01-21-2006, 06:57 PM	#5
rktskicar AudiWorld Super User Garage is empty, add now Join Date: Oct 2002 Location: Seattle area Posts: 10,749	2nd, rotten egg smell (sulpher?). __________________ "once a B5 S4 owner, always a B5 S4 fan" Stock ECU, 010 6MT Sprint Blue B8 S4. Premium +, Sport diff, B&O BBS CH, 255/40/18 Bridgestone RE960 AS, Milltek resonated cat-back + DPs Past: 01.5 6MT ASP Stage 3 S4 (4/01 to 9/09)

01-21-2006, 07:02 PM	#6
mbox AudiWorld Super User Garage is empty, add now Join Date: Jan 2005 Posts: 2,724	any high flow cats would work right? as long as they're the same diameter as the DP's.

01-21-2006, 07:04 PM	#7
S4andTLS AudiWorld Senior Member Garage is empty, add now Join Date: Aug 2003 Posts: 1,890	Mice running amuck? __________________ 01.5 Black,Tracksports 650/700,dts,Hsports F/R,adjustable c/arms,snub,Stasis center diff,S.Bend stage V clutch,uuc sshifter,Apr chip,Asp dp's and twin back,Ecs pulleys,Awe Ic's,Samco,X-1 intake,Alpine Nav/JL/MB quart,XM,V1,Blinder M25,Sportec 18's,G.year-F1's,FI hood,Rs4 bumper,clear bra,tint,etc.

01-21-2006, 07:05 PM	#8
forced2induce Member Garage is empty, add now Join Date: Aug 2005 Posts: 3,759	rotten egg smell is the smell when a cat is new

01-21-2006, 07:12 PM	#9
mbox AudiWorld Super User Garage is empty, add now Join Date: Jan 2005 Posts: 2,724	that's what I thought too.

01-21-2006, 07:15 PM	#10
S4Poor@Curbside Member Garage is empty, add now Join Date: Oct 2005 Posts: 4,199	LMFAO!

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