[DerekJohnScott]

In my county you don't have to have any sort of emissions test done once the car it 25 years or older, so I could in theory just take of my mufflers with no problems legally. I was looking and I would leave the one set of cats, but everything else would be gone, just straight pipes. Now, what would that do to it mechanically? Would it cause any damage to the motor or anything else?

 

[Soccerluvr4]

So pretty much straight pipes after the cats? You will be fine. Very loud, but fine.

 

[Tyoung68]

You will lose back pressure and could lose some hp but idk how much if any

 

[keaton5.0]

Mufflers have nothing to do with emissions. Thats what your cat converters are for. Mufflers are there to "muffle" the sound. I prefer flowmaster 40s or 10s over straight pipes.

 

[DerekJohnScott]

Mufflers have nothing to do with emissions. Thats what your cat converters are for. Mufflers are there to "muffle" the sound. I prefer flowmaster 40s or 10s over straight pipes.

I prefer those as well, I just have no money for them so to make them louder cheap ill do straight pipes.

 

[DustyStang306]

In my county you don't have to have any sort of emissions test done once the car it 25 years or older, so I could in theory just take of my mufflers with no problems legally. I was looking and I would leave the one set of cats, but everything else would be gone, just straight pipes. Now, what would that do to it mechanically? Would it cause any damage to the motor or anything else?

Man I have my car the same cats but no mufflers an you will lose a little HP but get a little low end torque so you don't but in my country I have to e test it but I still past last year with no mufflers an it was alot cheaper 100 bucks is all it cost me haha

 

[DerekJohnScott]

So pretty much straight pipes after the cats? You will be fine. Very loud, but fine.

Yes, that's what I want!

---------- Post added at 07:15 AM ---------- Previous post was at 07:14 AM ----------

If I could have zoomies I would.

 

[DustyStang306]

Yes, that's what I want!

---------- Post added at 07:15 AM ---------- Previous post was at 07:14 AM ----------

If I could have zoomies I would.

Haha it's going to be right loud pout some good headers on it an high flow cats an it will scream haha

 

[87 Notchback]

I just took off my dyno Max mufflers and omfg!!! It sounder sooooo good! I've got a heads cam intake motor so it sounds like a damn race car but stock I hears sounds stupid. Although if you take off your mufflers your cats and pipe will aag to the ground cause the only thing holding them up is the muffler hangers and the headers. At least that's how mine is. But if you can deffinatley do it neighbors gonna hate you though

 

[DustyStang306]

I just took off my dyno Max mufflers and omfg!!! It sounder sooooo good! I've got a heads cam intake motor so it sounds like a damn race car but stock I hears sounds stupid. Although if you take off your mufflers your cats and pipe will aag to the ground cause the only thing holding them up is the muffler hangers and the headers. At least that's how mine is. But if you can deffinatley do it neighbors gonna hate you though

The guy that did my just put some custom hangers lol i had a Brokein hanger on my mufflers when I first got it so I just had them take the mufflers off an man it sounded so good just gear up an drop the rpms down to like 1200 when there's a cop behind you hahaha

 

[Tork6]

Some one tell me why not remove the cats and leave the muffs and if u go straight pipe i think u should just with a smaller pipe but just think out of the box

 

[Nwg20]

I gotta quick question. If I was to cut my muffs off and weld pipes straight back would I need a bender or could I get away with backyard bending?

 

[93slowstang]

You will lose back pressure and could lose some hp but idk how much if any

Losing back pressure is a good thing, losing exhaust velocity is bad.

 

[93slowstang]

In my county you don't have to have any sort of emissions test done once the car it 25 years or older, so I could in theory just take of my mufflers with no problems legally. I was looking and I would leave the one set of cats, but everything else would be gone, just straight pipes. Now, what would that do to it mechanically? Would it cause any damage to the motor or anything else?

It'll be loud as hell and you'll get sick of it after a while but it won't cause any damage. I would save up and get an off road mid-pipe and either some bullets or flowmaster 10s.

 

[deadsp0t]

Leave taking off mufflers and leaving cats to the Chevy truck guys.. Sounds like ass IMO.. Lose the cats and leave the mufflers..

 

[DerekJohnScott]

I'm going to try it. What about just putting in glass packs? Their cheap.

 

[93slowstang]

I'm going to try it. What about just putting in glass packs? Their cheap.

I would try you tube to listen to a few setups. You may end up not liking how glass packs sound and you'll be out the cost.

 

[JNigus]

In my county you don't have to have any sort of emissions test done once the car it 25 years or older, so I could in theory just take of my mufflers with no problems legally. I was looking and I would leave the one set of cats, but everything else would be gone, just straight pipes. Now, what would that do to it mechanically? Would it cause any damage to the motor or anything else?

If it isn't supercharged you will loose hp at high Rpms and torque at low Rpms plus you have the chance of throwing a rod. Just have a muffler shop run you some 3" pipe to some 40 series out the back. That's what I have. Sounds loud but deep and keeps just enough back pressure to make the hp and torque increase. Plus it looks so crazy with 3" straight pipes coming out the back.

 

[91notchback]

Look up Flowtech Raptors on YouTube. They're about $30 each. I had a 95 with straight pipes and I HATED it! Just my two cents.

 

[93slowstang]

If it isn't supercharged you will loose hp at high Rpms and torque at low Rpms plus you have the chance of throwing a rod. Just have a muffler shop run you some 3" pipe to some 40 series out the back. That's what I have. Sounds loud but deep and keeps just enough back pressure to make the hp and torque increase. Plus it looks so crazy with 3" straight pipes coming out the back.

Do realize that is mostly myth, if anything 3" straight pipes all the way back would do more harm than good. Throwing a rod is pure myth as well. Getting rid of back pressure while increasing velocity is what you would want to do.