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asp, audi, awe, b5, cats, downpipes, exhaust, knock, pipes, power, s4, ssautochrome, test, tip, xs, xspower

ASP Exhaust with XS-Power Downpipes and Test Pipes (No Cats) - VIDEO

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Z-Tuned (Alex) on Aug 12, 2007

Aug 13, 2007 12:15 PM
by 4rings2turbos

13

2,699

S4 / RS4 (B5 Platform) Discussion

For those of you who have fullback xhaust system, are downpipes really worth their $$?

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c1pinang on Jul 21, 2007

Jul 22, 2007 08:51 PM
by ESFO

17

1,002

S4 (B6 & B7 Platforms) Discussion

audi, catback, cats, cayenne, downpipes, dyno, exhaust, milltek, nonresvalved, res, rs, rs4, turbo, valaved, valved

Installed: Milltek non-res/valved cat-back exhaust with Dyno

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adg44 on Jul 6, 2007

Jul 8, 2007 12:50 PM
by ELEVENS

72

12,823

RS4 (B7 Platform) Discussion

335i, audi, cat, cats, flashloader, giac, gutting, noise, s4, stock, uphill, uts

Got passed going uphill by a 335i. 6000 ft elevation. I'm stage I. I need DP's...

gutefahrt on Jul 3, 2007

Jul 6, 2007 05:45 AM
by jettatoS4 (Chad)

8

620

S4 / RS4 (B5 Platform) Discussion

cats, clogged, katti, pakoputki, tukossa

Are my cats clogged?

EB_1920 on May 29, 2007

May 30, 2007 10:49 AM
by Herr Schröder

5

473

Audi Original "S" Cars

2004, aftermarket, audi, b6, cats, downpipes, gut, gutting, oem, pre, precat, precats, s4

noobie..Do aftermarket downpies for the b6 s4 have pre-cats that you can gut like the b5 stocker

golfindaily on May 7, 2007

May 7, 2007 01:18 PM
by S4Tuned

4

765

S4 (B6 & B7 Platforms) Discussion

audi, b5, cats, gain, gains, horsepower, main, pre, removing, rempving, romoving, s4

What is the HP gain after removing both precats and main cats on stock exhaust car with chip?

nadrealista on Apr 30, 2007

Apr 30, 2007 06:47 AM
by vegasS4

2

485

S4 / RS4 (B5 Platform) Discussion

Universal cats

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youdude on Mar 21, 2007

Mar 22, 2007 03:52 PM
by MA_2.7t

20

994

Audi Original "S" Cars

blown, cats, damage, ko4, teardown, turbo

Well, today I start the teardown for a blown turbo.....

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sphere on Mar 17, 2007

Mar 19, 2007 07:33 PM
by Rolf

10

1,141

S4 / RS4 (B5 Platform) Discussion

1990, 20v, 4433, a4433, audi, blink, car, cats, code, cool, coupe, fault, gas, quattro, starving

Car Starving for Gas when Hot, code 4433, suggestions??

LarryF_in_Ca on Mar 10, 2007

Mar 11, 2007 03:24 PM
by LarryF_in_Ca

3

1,540

Audi 5000 / 200 / V8 Discussion

Is it illegal to have a cat locked inside my garage?.........

UR-Idiot Savant-S6 on Jan 27, 2007

Jan 27, 2007 11:31 AM
by 60to0in0seconds

3

367

Audi Original "S" Cars

42, audi, cats, drilled, exhaust, mods, rotors, s4, tap, touareg, v8, zimmerman

AR 4.2 - same 4.2 found in V8 Touareg?

GottaAllroad on Jan 14, 2007

Jan 16, 2007 12:23 PM
by GottaAllroad

8

6,683

Audi allroad

2007, 335i, a8, audi, baffle, bmw, cat, cats, exhaust, loose, oem, pipe, tt

Seems my OEM cat has a loose baffle and needs replacing... Reccos?

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ZGTT on Jan 15, 2007

Jan 15, 2007 03:15 PM
by VorsprungTT

14

900

TT (Mk1) Discussion

18t, a4, atp, audi, cat, cats, d2, dyno, exhaust, gain, hp, pipe, removing, s8, supersport, test

Removing the cat - pre/post dyno plots

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Elberoth on Jan 6, 2007

Jan 10, 2007 07:36 AM
by Ramondo

41

2,212

A4 (B6 Platform) Discussion

We don't need no stinking cats!

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Gator Al (Al) on Jan 7, 2007

Jan 9, 2007 12:14 PM
by Gator Al (Al)

26

913

S4 / RS4 (B5 Platform) Discussion

01, 2001, 2004, audi, b5, cat, cats, code, efficiency, s4, warm

Are "warm-up cat efficiency" codes bad secondary O2's or just a cold weather quirk?

S4KTS_suspended on Jan 2, 2007

Jan 2, 2007 10:03 AM
by StoneMan

2

345

S4 / RS4 (B5 Platform) Discussion

cars, cats, envirotest, locations, passing, rapid, reading, screen, van

Envirotest/Rapid Screen sucks a**

R2.7TA6 on Dec 5, 2006

Dec 6, 2006 05:10 PM
by PrelateBishop

9

410

Rocky Mountain Discussion

Replacement Cats

M954 on Dec 2, 2006

Dec 6, 2006 06:30 AM
by 4Driver4

8

667

30v V6 Discussion

2008, audi, b5, cancel, cat, cats, code, gut, gutting, mazda3, throw, toxic, vibe

Can I gut out my Cat? Will is throw codes? Is it a bad idea? Thanks.

a4_1.8t_01 on Dec 5, 2006

Dec 5, 2006 02:39 PM
by BoostFrenzy

5

735

A4 (B5 Platform) Discussion

Anyone gut their main cats? Or AKA test pipe their car? I have...

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PhunkFX on Dec 3, 2006

Dec 3, 2006 08:09 PM
by PhunkFX

11

763

S4 / RS4 (B5 Platform) Discussion

2001, 28, catalytic, cats, converters, sale

Anyone have used Catalytic Converters for sale? 2001 2.8L A4

mlod on Dec 3, 2006

Dec 3, 2006 06:59 PM
by Audi Junkie

3

315

A4 (B5 Platform) Discussion

2001, 2006, 28, 28l, a4, audi, audiworld, axle, axleback, back, cats, exhaust, magnaflow, shop, vibrant, weld

A4 2.8L exhaust shop weld price (cats & back)

wood_e on Nov 26, 2006

Nov 27, 2006 01:56 PM
by Bobby Kinstle

8

534

A4 (B5 Platform) Discussion

2001, 2006, 42, a6, allroad, audi, c5, cats, downpipe, downpipes, exhaust, hiflow, milltek, s6, sound, supersprint, v8

Milltek vs. SuperSprint for 4.2, Which is the better choice for....

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SharkNardo on Nov 21, 2006

Nov 24, 2006 09:31 PM
by BrianG

10

11,046

A6 / S6 (C5 Platform) Discussion

18t, anti, antifoulers, cat, cats, foulers, running

Those running no cats and anti-foulers, how are things holding up? How many miles now with no CEL?

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PSmalls::AnalRetentiveNumbNut on Oct 13, 2006

Oct 14, 2006 07:27 AM
by BLK01S4

29

1,059

S4 / RS4 (B5 Platform) Discussion

02, 18t, 2006, bad, cats, frontier, idle, nissan, o2, rough, sensor, shifter, symptoms, vibration, vw

Symptoms of a bad O2 sensor?

OneThirtyEight on Sep 19, 2006

Sep 20, 2006 04:40 PM
by OneThirtyEight

5

37,725

A4 (B5 Platform) Discussion

Will a few gallons of leaded gas kill cats/o2's?

wagongotya on Sep 8, 2006

Sep 8, 2006 05:19 PM
by ~DonQPremiumTequila~

3

306

S4 / RS4 (B5 Platform) Discussion

2008, 42, 6speed, a6, allroad, audi, awe, c5, cats, conversion, downpipe, downpipes, hiflow, milltek, s6, upgrade, urs6, v8

Finally installed Milltek downpipes in my S6. What a job that was! Details inside...

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BrianG on Aug 27, 2006

Aug 30, 2006 06:10 AM
by BrianG

12

2,969

A6 / S6 (C5 Platform) Discussion

02, 27, 27t, a6, c5, cats, extend, install, o2, piggie, piggies, pipes, relocating, sensor, sensors

need advice on piggie pipe install ( o2 relocation question )

4x4a4(nomore) on Jul 30, 2006

Jul 30, 2006 02:31 PM
by A6turbo530

2

806

S4 / RS4 (B5 Platform) Discussion

17544, 17544fuel, 17546, 20015, add, audi, cats, code, codes, fuel, lean, s4, system, trim, vag

17546 and 17544 Fuel Trim Codes Following Fuel Filter Replacement

AuDIY on Jul 10, 2006

Jul 11, 2006 08:18 PM
by AuDIY

7

2,126

S4 / RS4 (B5 Platform) Discussion

1987, 5000, audi, auto, bomb, break, cats, distribution, feature, memory, pressure, problem, quattro, suspension, tester, turbo, valve

Question re: 1987 Audi 5000 Woes... Need advice if anyone can offer some!!!!! (loss of power)

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blackthunder on Jul 3, 2006

Jul 7, 2006 01:53 PM
by blackthunder

19

1,782

Audi 5000 / 200 / V8 Discussion