InfiniteReality

I'm wanting a little more sound out of my Magnaflow axle back and since we don't have emissions here all of my previous sports cars I always had the cats removed. On some of them, I could buy offroad pipes to get rid of them as basically a bolt-on solution. But looking for something similar for the C5, it doesn't appear they are available.

So without going to headers, what do most people do to ditch them? Just cut off and went a piece of replacement pipe? Is there any aftermarket bolt on solution I'm missing maybe?

Thanks for any info!

bravo29

You would have to tune the O2 sensors out or go with sims. You can cut and weld in a pipe as you said. You also can go the chicago route leave them in and just take a pipe and smash out the center of the cats lol.

I would just go with headers if you are removing your cats completely.

sloopdawg

Wow I guess you can tell where my head is at...
I thought you were looking for suggestions on how to get rid of cats (the animal kind) on your car

3sACROWD

You will have to cut the pipes to do this method due to how the exhaust is bent. If you're going that far, cut the cats out and install straight pipe or buy an X pipe and straight pipe to replace the h-pipe currently there.

Then take the scrap yard and recover some of the money you spent.

InfiniteReality

I have the O2's deleted already, so good for that. I considered poking them out, but figured a replacement pipe would be better, whether aftermarket or my own (or I know someone at a muffler shop that will). I wouldn't mind headers, but my Superlite SLC is due in within the next week or 2 so all my time and money will go to that when it arrives. Anything else I could do for more volume?

Hahaha!

grantv

Ah yes, the good old Superlite SLC (?).
Anyway, you could do a bypass on your Magnaflow mufflers similar to what many do to the factory systems if willing to cut them. Or yes, remove the cats at an exhaust shop if they're allowed or willing to.

Vetteman Jack

The bypass should make it louder or a competent muffler shop should be able to patch in a straight pipe in place of the cars. Your choice.

InfiniteReality

I didn't consider the by-pass on my Magnaflow. That may be the route I take, would be easier and no bad smell. Not sure if they're technically allowed to, but good to have friends that work there.

I think the by-pass is best choice, as long as a muffler shop can weld SS because I can't.

Toys4Life C5

You can weld stainless steel with a regular MIG - just in case you did not know. Maybe not for a high fatigue area, but exhaust tubing is fine and holds up for years and years.

SAYUNCL

haha

Lexybird

I thought the Chicago route was to shot them off the car with a 9 mm

CactusCat

If you have some rowdy cats, here's your solution:

~Josh

Car would stink. Everyone around in traffic would hate the car, and the driver.

striper

Why don't you consider electric cutouts? Then when the mood strikes you, you can quiet the car down.

InfiniteReality

Ive thought about them on this car since I've put them on every other car, just don't want to invest the money right now. Attempting to do it quick and cheap

Skrilla

If I can add my 3 cents ,I removed the cat on my other car and have to say I regret it so much that when I did my headers and exhaust on my C5 I spent the extra money to get cats. The main thing is the smell ESP in traffic . It gives me such a headache where I won't drive in traffic anymore . Plus every one that's ever followed me says they can smell it in there car .

InfiniteReality

I've never had anyone complain to me about the smell on previous vehicles and personally I can't smell all that good anyways (or I'm already use to the smell, so shouldn't really bother me too much.

Since I'm attempting to keep the exhaust fairly stock and no real need to go bigger, while at the muffler shop getting them deleted, may be worth it for them to weld up an universal aftermarket X or H pipe while there. Probably H for the sound.

RVETTE42

I would highly suggest you save up your money for some LG street series headers with high flow cats in the long run you will be much happier with the sound and performance. I tried louder BB Bullets exhaust too much drone and still not the sound I was looking for. I tried Corsa Sport too quiet but with headers and high flow cats that was it. I tried without cats and it was way too raspy sounding for me. your best bet is go for a ride with someone to find the sound you want although this is not always easy to do.

InfiniteReality

I'm just wanting something louder, quick and cheap. I wouldn't mind headers and full exhaust, but all my time (that'd I'd need to install a full exhaust) and money will be spent (aka dumped) into this Superlite SLC build that's shipping later this week (hopefully). When it shows up, there's no doubt I'll have any time to modify the C5 or buying stuff for it, it'll be designated as a DD and that's it....although a fun one and WAY better than any truck!

This is the Superlite SLC I'm building, well an internet picture of a completed one anyways.. Hopefully it'll make sense why I don't want to spend alot of money on a full exhaust.

RVETTE42

That looks very cool.