Performance and Tuning Discussion forum for various performance tuning techniques and questions

Replacing cats with straight pipe?

Thread Tools
 
Search this Thread
 
Old Dec 13, 2014 | 06:22 PM
  #1  
ZachBosskay's Avatar
Thread Starter
AudiWorld Newcomer
 
Joined: Dec 2014
Posts: 1
Likes: 0
Default Replacing cats with straight pipe?

I have a 1999 Audi A4. Recently, my cats had failed. Being in school, I don't have money to replace, plus not worth it to replace on such an old car.

Now, would removing the cats, and replacing them with a straight pipe be a bad idea? Will back pressure really affect the engine? Will I burn a lot more gas due to the O2 sensor readings?

I am not worried about emission testing, as I do not have to do it for another two years.

Thanks,
Zach
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
aca6c5
A6 / S6 (C5 Platform) Discussion
8
Jun 24, 2013 06:50 AM
Quattroholic
Audi allroad
1
Sep 28, 2004 04:01 AM
Reifle
Audi 100 / A6 (C4 Platform)
1
Apr 5, 2004 05:27 PM
SmokinS4™
S4 / RS4 (B5 Platform) Discussion
30
Aug 28, 2003 05:15 AM
eqvt
A4 (B5 Platform) Discussion
2
Sep 2, 2002 10:07 AM




All times are GMT -8. The time now is 08:50 AM.

story-0
New Audi A6 Allroad Is The Market's Coolest Wagon: 9 Things to Know

Slideshow: Audi's latest A6 Allroad gets RS-style fenders, real off-road hardware, and enough personality to stand out in a market obsessed with crossovers.

By Pouria Savadkouei | 2026-06-16 17:31:52


VIEW MORE
story-1
10 Strangest Audi Designs That Actually Made Production

Slideshow: 10 strangest Audi designs that actually made production

By Joe Kucinski | 2026-06-10 16:32:29


VIEW MORE
story-2
2027 Audi Q7 and SQ7: Audi Upgraded EVERYTHING!

Slideshow: Everything you need to know about the 2027 Audi Q7 and SQ7

By Michael S. Palmer | 2026-06-09 06:02:56


VIEW MORE
story-3
Audi Unveils Absurdly Cool New Supercar: 10 Things You Need to Know!

Slideshow: Limited to just 499 units, the 987-horsepower halo car signals a new chapter for Audi performance.

By Verdad Gallardo | 2026-06-04 17:37:15


VIEW MORE
story-4
The Highs & Lows of Every Audi C-Class Generation

Slideshow: The highs and lows of every Audi C-Class generation.

By Joe Kucinski | 2026-05-27 16:05:50


VIEW MORE
story-5
Top 10 Most Expensive Audis Ever Sold on Bring-A-Trailer

People were more than happy to shell out big bucks for these cars.

By Brett Foote | 2026-05-27 15:32:23


VIEW MORE
story-6
10 Audi Features & Options We Miss the Most!

Slideshow: 10 Audi features and options we miss the most.

By Joe Kucinski | 2026-05-12 19:33:47


VIEW MORE
story-7
Audi Recreates Crazy-Looking Speed Record Breaker From 1935

Slideshow: Audi has recreated one of the wildest machines of the pre-war speed-record era, reviving a streamlined V16 racer that originally exceeded 200 mph in 1935.

By Verdad Gallardo | 2026-05-11 09:49:34


VIEW MORE
story-8
Coachbuilder Recreates the 1995 Audi TTS Concept

Slideshow: A Dutch coachbuilder has reimagined the original Audi TT by finishing what the 1995 concept only hinted at.

By Verdad Gallardo | 2026-05-05 15:17:58


VIEW MORE
story-9
Every Audi V10 Car Ranked!

Slideshow: Ranking every Audi V10 road car

By Joe Kucinski | 2026-04-29 16:11:56


VIEW MORE