98 Z28 Exhaust ????

**LETHALxLS1** · 05-05-2007, 09:04 PM

Hi,
I have a 98z28 and I want to get a better flowing muffler for now mainly for a nice sound untill I can get headers/cat back later. My question is for the new muffler what size inlet/outlets do I need (is it 3 inch in and 2.5 inch outlets?)and what size muffler would be needed to make my pipes come out where they are now. I would crawl under my car to find out but my back is totally screwed. Would just replacing the muffler make my car sound better? Please dont abuse me too badly for asking this.LOLThanks for any help on this guys.

**White96Z28** · 05-06-2007, 05:37 AM

A cutout is a good way to go. I just got one for my car, only cost about $200, I went with the 3" QTP Electric Cutout.

**Kup98ss** · 05-06-2007, 05:59 AM

Just get the Flowmaster American thunder cat back kit. It is easy to install and you get a good amount of pieces for not a whole lot more.

**White96Z28** · 05-06-2007, 06:04 AM

Hah ya right, trust me get a cutout. Plenty loud, nice sound, and great power. Flowmaster sucks, it doesn't give you any more power and it is very very quiet.

**Firebirdjones** · 05-06-2007, 06:57 AM

Well not everyone can run around with cutouts open, that attracts more attention than I need anyway.

Nothing wrong with flowmaster though, everyone says it kills power but I think that is heresay and word of mouth passed down from one person to the next.
I have actually tested several muffler and pipe designs on my chevelle over the years and spent close to $2,000 on them total and never found the car vary more than a tenth or less at the strip between them all, which was more due to weather conditions.
My car has always run 11.40's at 118 mph through the tailpipes whether it has flowmaster, edelbrock, magnflows, dynomax, etc.....you name it I have had it on the car.
What it really came down to for me was sound, and the flowmaster super 40's give me what I want to hear. Still runs 11.40's with them,,,so in my experiences they don't kill anything,,,,except maybe a few ear drums

my flowmasters are very loud when I am on the go pedal, people hear me coming 3 blocks away. Go with what you like as far as sound and don't worry so much about HP numbers and such,,,it's way over inflated.

The only big difference that is really made on the 4th gens is going from the single pipe to a real dual system, the mufflers don't make a damn bit of difference,,,but going to a real dual setup like Bissani can help tremendously,,,simply because you are not craming everything down a single pipe. Larry.

**White96Z28** · 05-06-2007, 07:03 AM

Ok well the cutout enables you to switch from open to regular exhaust especially the electric cutout which I went with. Well I am pretty sure that Flowmaster doesn't help performance. I have SLP 2OTL exhaust and even that with the cutout open I can tell the performance is better. I'm tellin you with the cutout open I'm sure my car would be louder then your flowmasters and sound better as well, not even going very fast either.

**LETHALxLS1** · 05-06-2007, 08:55 AM

Well I was thinking about getting a Borla Muffler for now. Cutsouts are out of the question for me.

**White96Z28** · 05-06-2007, 09:05 AM

Ok well since you all know more about having a cutout then me yet i'm the only one here that supposedly has one, your all right , I'm wrong even know I have an electric cutout on my car. Go waste your money on a wanna be cutout which is the Borla. First, the Borla costs way too much, also its NOT a true cutout with a muffler, its still gonna muffle about half your sound, and last the wanna be cutout is not even controllable from inside the car. I think Borla sounds like crap, especially considering it costs so much. I would take a GMMG exhaust over it anyday and it costs less too. If you want a TRUE cutout get the cutout, you can always switch from open to closed too, and the electric cutout i got only cost $200 where as the Borla costs $900+ and the GMMG costs $700. The cutout is not bad for a killer sound and the ability to go to my SLP 2OTL exhaust.

**LETHALxLS1** · 05-06-2007, 09:10 AM

Originally Posted by White96Z28

Ok well since you all know more about having a cutout then me yet i'm the only one here that supposedly has one, your all right , I'm wrong even know I have an electric cutout on my car. Go waste your money on a wanna be cutout which is the Borla. First, the Borla costs way too much, also its NOT a true cutout with a muffler, its still gonna muffle about half your sound, and last the wanna be cutout is not even controllable from inside the car. I think Borla sounds like crap, especially considering it costs so much. I would take a GMMG exhaust over it anyday and it costs less too. If you want a TRUE cutout get the cutout, you can always switch from open to closed too, and the electric cutout i got only cost $200 where as the Borla costs $900+ and the GMMG costs $700. The cutout is not bad for a killer sound and the ability to go to my SLP 2OTL exhaust.

Dude relax- I am talking about buying a muffler not a cat-back exhaust. A cut-out is for fkin dragstrips not the road. I dont want my shit to sound like billy bobs monster truck. I just want it to sound better than the stock set up.I didnt ask what to buy either. I asked the sizes of the inlet/outlets.

**LETHALxLS1** · 05-06-2007, 09:46 AM

This is my thread. Thanks for destroying it with information I could really care less about.

Dont go away mad ----just go away!!! You are BY FAR the most annoying person I have encountered here.

**LETHALxLS1** · 05-06-2007, 09:55 AM

Yea this guy is like duhhhhhhhhhhh CUTOUTs duhhhhhhrrrrrrrrrrrrrrrrr.

**william SS** · 05-06-2007, 09:57 AM

I personally think the cutouts are to loud. I heard them once and they made my ears ring and pop.

**Y2KPewterSS** · 05-06-2007, 09:58 AM

If you aren't answering the thread starters original question or helping him in a positive manner, please refrain from posting in this thread.

**Firebirdjones** · 05-06-2007, 12:42 PM

Originally Posted by White96Z28

Ok well the cutout enables you to switch from open to regular exhaust especially the electric cutout which I went with. Well I am pretty sure that Flowmaster doesn't help performance. I have SLP 2OTL exhaust and even that with the cutout open I can tell the performance is better. I'm tellin you with the cutout open I'm sure my car would be louder then your flowmasters and sound better as well, not even going very fast either.

LOL,,,are you sure about that? I can pop my headers open too, but with a 468 ci and a .640 roller it's a little obnoxious, can't run around like that, it's much louder than a typical 4th gen cutout on one pipe only. Besides, a better flowing complete exhaust system is what you really want,,,anyone can open their headers up,,,but it's more impressive to see a fast car running through the tailpipes.

I'm not saying flowmaster is better, I am saying other mufflers won't necessarily give you better performance, I have been through that with this car, it's more the design of the pipes and the overall system, pipe size, etc...than it is the muffler you choose.
If you would like to compare you're car with open headers to mine, I would be more than willing if you dare

**Firebirdjones** · 05-06-2007, 12:45 PM

Originally Posted by White96Z28

Ok well since you all know more about having a cutout then me yet i'm the only one here that supposedly has one, your all right , I'm wrong even know I have an electric cutout on my car. Go waste your money on a wanna be cutout which is the Borla. First, the Borla costs way too much, also its NOT a true cutout with a muffler, its still gonna muffle about half your sound, and last the wanna be cutout is not even controllable from inside the car. I think Borla sounds like crap, especially considering it costs so much. I would take a GMMG exhaust over it anyday and it costs less too. If you want a TRUE cutout get the cutout, you can always switch from open to closed too, and the electric cutout i got only cost $200 where as the Borla costs $900+ and the GMMG costs $700. The cutout is not bad for a killer sound and the ability to go to my SLP 2OTL exhaust.

I have 3 cars with cutouts, it's not like I don't like them but it's not something you want to run around with on the street all the time.

**mrr23** · 05-06-2007, 05:40 PM

Originally Posted by White96Z28

Ok well since you all know more about having a cutout then me yet i'm the only one here that supposedly has one, your all right , I'm wrong even know I have an electric cutout on my car. Go waste your money on a wanna be cutout which is the Borla. First, the Borla costs way too much, also its NOT a true cutout with a muffler, its still gonna muffle about half your sound, and last the wanna be cutout is not even controllable from inside the car. I think Borla sounds like crap, especially considering it costs so much. I would take a GMMG exhaust over it anyday and it costs less too. If you want a TRUE cutout get the cutout, you can always switch from open to closed too, and the electric cutout i got only cost $200 where as the Borla costs $900+ and the GMMG costs $700. The cutout is not bad for a killer sound and the ability to go to my SLP 2OTL exhaust.

here' let me throw some enlightenment your way, seeing as i've had the QTP 3" electric cutout and the borla 3" adjustable cutout. the cutout gave me about .02 in the 1/4 mile. the borla gave me almost .4 in the 1/4 mile. also, the borla has a 'cutout' built into it. you adjust the amount of bypass that you want to. the right side tips connects directly to the i-pipe that goes over the axle. you choose to leave the restrictor plates out, the exhaust will completely bypass the muffler. the smaller the restrictor plate, the more exhaust gets turned to go through the muffler. this cuts back on the sound and a little on the power output.

the electric cutout gives you the ability to open/close it without getting under the car. yep, you can't beat a cutout for price, if all you are wanting is sound. QTP makes an electric cutout to go on the borla.

so, if you want all sound and virtually no power, then by all means get an electric cutout. if you want power and sound, then get a nice catback. sound is subjective. you may not like a borla, but someone else might. i liked the borla until i put headers and removed the cats. then, it became unbearable inside the car. so, i switched to the bassani tru-duals. i picked up 15 rwhp and reduced the interior noise substantially.

so, you might want to offer advice without the atititude, when someone doesn't have your same opinion.

**LETHALxLS1** · 05-06-2007, 05:44 PM

If you dont mind me asking how much was the bassani tru duals??? did you buy it online?? thanks

**mrr23** · 05-06-2007, 05:44 PM

Originally Posted by deadbydawn421

Hi,
I have a 98z28 and I want to get a better flowing muffler for now mainly for a nice sound untill I can get headers/cat back later. My question is for the new muffler what size inlet/outlets do I need (is it 3 inch in and 2.5 inch outlets?)and what size muffler would be needed to make my pipes come out where they are now. I would crawl under my car to find out but my back is totally screwed. Would just replacing the muffler make my car sound better? Please dont abuse me too badly for asking this.LOLThanks for any help on this guys.

yes, it is 3" in dual 2.5" out. sound is subjective. one muffler might sound better than another, to you. which it will be different to another person.

**mrr23** · 05-06-2007, 05:46 PM

Originally Posted by deadbydawn421

If you dont mind me asking how much was the bassani tru duals??? did you buy it online?? thanks

i have the stainless steel which costs $949.00. they make it in aluminized for 779.00.

http://vincihighperformance.com/fbod...t.html#EXHAUST

if you ever want to hear it, let me know. tampa isn't too far.

**LETHALxLS1** · 05-06-2007, 05:47 PM

Originally Posted by mrr23

i have the stainless steel which costs $949.00. they make it in aluminized for 779.00.

http://vincihighperformance.com/fbod...t.html#EXHAUST

if you ever want to hear it, let me know. tampa isn't too far.

Thanks I appreciate that