i was told that a cheap muff wouldnt melt and that the people saying they do wer having timing problems is this true or not and if so wat muffs would you buy for a decent price

 

cheap mufflers will NOT holt up for long on a rotary powered vehicle. most RX-7 owners use Racing Beat as a primary source for exhaust options. cheap mufflers will either split or the packing will be burned away.

 

the exhaust temp from a normal running rx7 will burn the packing those mufflers have.
An rx7 makes 200-400F more heat then a piston engine.

 

racing beat is full of it an ext system will not im prove your hp by 60 percent lol and on top of that they look like sh$%#

 

This is 90% of the reason fc owners get hated on. Because people won't spend the money to do the job right and instead opt for the cheaper and low quality option. Which results in a bad image for all.

RB doesn't claim to boost your hp by 60%. The RB Rev TII for turbo cars claims a 60hp increase over stock. This is true because the stock setup is extremely restrictive.

On an NA car they don't list an hp gain because it is very hard to determine.

 

actually, they will, or at least close to that much. The reason that they add 60 HP is because of how restrictive the stock exhaust is. On an S4 the stock boost is 5psi, but as soon as you open up the exhaust, it jumps to ~11psi. Of course that 60hp is probably on a perfect condition motor, with fuel management, but its still a major part of the equation.

but hey, if you think you know so much, then you don't need anyone's help here.

 

Solution cheap mufflers with straight through packing i make the collectors glow on a 800 hp bb still havnt split or( burnt out)

 

ok so i am new to the rotary but 60 hp is pushing it anyways wat are some companys to go with

 

if you want quality and quiet go with racing beat.
You can also go with corksport, though its not as quiet.
Or you can with an Apexi N1 system, either dual or single.

Or you can just custom the exhaust with whatever choice your muffler needs are.

 

There's your answer..

/thread..

 

www.rx7store.net
www.rx7.com
www.corksport.com
www.mazdatrix.com

 

Seriously Pyro...search button...try it. Everything you are going to ask has been asked before. Check out the FAQ as well.

 

Even though I love the Racing Beat exhaust,there are other options as the Wise One up above said!(good stuff!).
I've heard some good results with Borla XR1(that correct?).
Using them as a Presilencer if you will,and then going to Walker Mufflers.
It all depends on your Taste really..but any Cheapo Muffler with the fiberglass packing,or Madly made with Cheap welding and poor seems,won't last long.
I've had Racing Beat on the Car for 3 years now.If you take into account that you will be replacing the Exhaust if you cheap out on the Mufflers,then it Becomes a good investment.
Remember if you are gonna be beating on the car,that is gonna take a toll on the exhaust.The high temps will Factor in and Destroy a Crappy 75 dollar Ebay Can.So,if you end up replacing that,you end up paying Double.The RB Universal Muffler is about that..Fabricate a Single exhaust with a RB Uni,and Bam!..Good Exhaust,that will hold up on a Cheap budget.
Oh ..and "Muffs"?..isn't that another Word for P***Y???(figure that out?!)..they'd burn out too..!Ouch!

 

Yes on the Borla XR-1. I used to run one on my old NA bridge setup and also used one on a big single 3rotor.

There was one guy on the forum that blew one apart though... forget who that was.

 

OMG! I totally read "I was told that cheap muffs wouldn't smell" at first... I think that says more about me then about the topic though.

 

I could sense the fail pouring off this thread when I scrolled by it...

You want close to stock with less backpressure, get RB.
You want loud, get Corksport.
You want big ol' rice cans, get N1.

The game.

 

ok ok so n1 has like 17 diff pricings and about as many variations and i have a price range of about 100 to 150 give or take per unit but il need 2 lol but i cant find anywer wer ni lists what packing it has in it

 

and wat type of packing options are ther

and what will hold up to the heat

 

You bought the wrong car. My RB REV TII Catback was $390 USED.

 

He's not asking about a cat-back, he's asking about muffflers.

Riz.

 

alright the n1 muff has a price range from 30$ to 270$ how do i know what packing it has inside it???
and moroso muff sounds like a truck but is ther a way to make that sound sporty??? maby put a silencer on the moroso would that work???

 

buy a chamber muffler u are set
ppl love the borla xr1

 

lol well i foumd two companys
lol morolo which is a solid steel construction
and weapon r t30 seel with woven steel packing
any bad coments about these two compays