Catalytic Converter delete?
#1
Banned
Thread Starter
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
I have an 87 S4 orginally from cali, but founds itself in my garage in florida... so the car has unescessary power robbing cats which it doesnt need. So my question is what do i need to do in order to take them off? such as materials etc.
#3
Addict
Rennlist Member
Rennlist
Site Sponsor
Rennlist Member
Rennlist
Site Sponsor
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
What you seek is an X pipe... it replaces the down tubes and cat convertor. While state laws may not check for cats The laws requiring cats is a FEDERAL LAW and there are NO exclusions.
The following users liked this post:
GUMBALL (06-11-2024)
#4
Drifting
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Our catless X-overs are sold for off road use only (wink-wink!) and are well worth the effort, documented to the tune of approx. 30 horsepower.
https://rennlist.com/forums/showthre...ghlight=rabbit
https://rennlist.com/forums/showthre...ghlight=rabbit
#5
Three Wheelin'
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Originally Posted by whitefox
I have an 87 S4 orginally from cali, but founds itself in my garage in florida... so the car has unescessary power robbing cats which it doesnt need. So my question is what do i need to do in order to take them off? such as materials etc.
Do they actually have less HP? I remember seeing some cars that the specs actually showed that Cali cars had less HP, but I've never seen anything that says that such 928's actually produce less power. It might have just cost more money to produce those cats, so to make the car a bit cheaper they just didn't put it in for cars destined to other states.
I'm speculating there, but I'm on option 027 guy as well, so I'm curious to know what's actually up.
#6
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Remove cats, store in garage corner or dispose, fit X pipe (the choice is yours; there's a few to choose from recently).............enjoy weight savings, more power and beautiful sound!!!
#7
Addict
Rennlist Member
Rennlist
Site Sponsor
Rennlist Member
Rennlist
Site Sponsor
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
The emissions equipment was the SAME for California as the rest of the US no difference. Some other cars in years past had special California only equipment specifications but not the 928 !
Trending Topics
#8
Racer
Join Date: Oct 2005
Location: middle of nowhere, USA
Posts: 309
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
or cut the cats open and save the outer metal housing and fit it around the X section to create the illusion of catalytic conversion, dont forget to add rotten eggs to keep the smell right and warn off anyone looking too closely
![Wink](https://rennlist.com/forums/images/smilies/wink.gif)
#10
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
whitefox..................you can always run a stock rear muffler with the X..................power increase is apparently not deminished but V8 shriek is somewhat lessend. TETO (to each their own)
#11
Banned
Thread Starter
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
I would if I bought the car with the stock rear muffler, RMB was already installed. OEM muffler was not included.
I dont want the car to sound like a Harley-Davidson and wake the neighbors up
I dont want the car to sound like a Harley-Davidson and wake the neighbors up
#12
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
In my 1980 Im running a test pipe in place of the cat and I have an ansa muffler. It is much louder without the cat but it seems to run smoother and it wants to rev more.
#14
Race Car
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
LOL, Porsche designed the Harley V-Rod, gotta love throaty exhausts. Harley didn't even like it so much, they had to design a new exhaust to get rid of the "Porsche" sound.
Michael
Michael
#15
Rennlist Sponsor
Rennlist
Site Sponsor
Rennlist
Site Sponsor
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
WhiteFox,
>Im afraid that if I purchase the X-pipe that it will be to loud with my RMB...
You can get our Stainless Steel Modular Crossover and the cat version includes Cats and Straight pipes. You change from one to the other without any cutting etc, using only normal tools.
Click here for details.. https://www.928gt.com/p-40343-928sp-...pe-system.aspx
>Im afraid that if I purchase the X-pipe that it will be to loud with my RMB...
You can get our Stainless Steel Modular Crossover and the cat version includes Cats and Straight pipes. You change from one to the other without any cutting etc, using only normal tools.
Click here for details.. https://www.928gt.com/p-40343-928sp-...pe-system.aspx
__________________
David Roberts
2010 Jaguar XKR Coupe - 510HP Stock - Liquid Silver Metallic
928 Owners Club Co-Founder
Rennlist 928 Forum Main Sponsor
www.928gt.com
928 Specialists on Facebook - 928Specialists
Sharks in the Mountains on Facebook - 928SITM
David Roberts
2010 Jaguar XKR Coupe - 510HP Stock - Liquid Silver Metallic
928 Owners Club Co-Founder
Rennlist 928 Forum Main Sponsor
www.928gt.com
928 Specialists on Facebook - 928Specialists
Sharks in the Mountains on Facebook - 928SITM
![](http://www.928gt.com/images/928Specialists-COVER3-928GTcom.png)