Im going to be getting the RacingBeat road race header....Should I run 1 or 2 mufflers and why?his will be on a set up with no cats..and 2 1/1 in exhast..Does one muffler on a FC perfrom better or 2

i would keep it seperate all the way back, i think if you wanted that extra 2-3% then a collected single would be better



mike

That's the way to go, don't keep it the stock design even if it's mandrel bent and larger pipe. I'm a fan of the dule exhaust but each roter case has a seprat pipe exiting out the back, maby a h pipe someware in there. I currently have a single muffler works grate!!

So on a road race header sqaure flange you gusy think to just coem out with 2...straight back to to mufflers?Dont join into one?



My road race header on my FB joins into 1 after 15 inches..

The most power RB tested was to keep a true dual exhaust from the engine back, separate pipes, presilencers, and mufflers for each port.

I have heard that have a cross over pipe( just a place where they join) is the best setup, this way the exhaust pulsese pull each other out... But its not that big of a power difference on an n/a so no biggy really.

i had the RB race headers with a 2 into 1 y pipe with a gutted cat. Kept it single pipe all the way back with 2.5" piping to an Apex N1. I left the cat on there cause the secondary actuator pipe (wutever you call it) was welded into the cat, and my secondaries worked perfect...



it gave me some REALLY nice power. after that i literally never lost to any other N/A. I raced a few 89-91's and spanked em all, i raced one 88 N/A carbbed that was supposedly ported too....spanked his ass....i liked that car alot. got beat by juice or boost, but wut u expect for an N/A...=)

if its going to be street driven at all id go with the 2 into 1.. should mix the exhaust beats and give a more pleasing tone... might be a drop more restrictive though

Yuca..you need to buy your car back..

How about 2 coming out of the Road race header...then into one...then back out into 2 to go on each side of the back of the FC?

i went 3" piping w/ a single n1 out the left side. i see no need to split it

His car is n/a I think 2 1/2 will be ok

i was thinking race header(if i find a free one) and out the passenger side straight?

your ears would bleed

I think I'm about to ditch the cats for the test pipe...does it matter what diameter for this?



And why is out the side so much better? I mean, not "because you go faster," or "because it sounds cool," but the mechanics of it. Is it shorter distance?

its much less ristrictive, MUCH, but it would scare some people :twisted: :twisted: :twisted:

yeah, not only would you probably shoot flames out of a side exit with no muffler, but you would deafen everyone on the road. including yourself. it would be ok at the track. but streetable, it is not.



Justin

i had my exhuast come out the drivers side

So what if I have no cats, no mufflers, but the stock setup besides that?

what about it? i dont understand?

it will be loud, tinny and ultimately sound like total ass



Justin

If you plan to do a test pipe... get it from the manifold back - and go with single muffler. Sure.. it's gonna be loud without the cats, but hey... :yum: Depending what you like, and what you consider loud anyway.





The pipe should be about a 2" piping, the muffler.. well.. I'm not too sure. I'm getting about 3" muffler.

You might also want to consider the weight of the dual systems, the RB system for instance is very beefy material, which is great, but heavy. I currently have RB header and presilencer, RB Y pipe and RB mufflers... I will probably ditch the Y pipe and go to a single muffler later since I will be putting the car on a diet in the summer. You're probably doing the mods for performance and exhaust note reasons... performance is usually the first priority, it would be pretty lame to lose the power gains in weight additions, so keep an eye on the scale with yer performance mods https://www.nopistons.com/forums/pub...DIR#>/wink.png

If you plan to do a test pipe... get it from the manifold back - and go with single muffler. Sure.. it's gonna be loud without the cats, but hey... :yum: Depending what you like, and what you consider loud anyway.





The pipe should be about a 2" piping, the muffler.. well.. I'm not too sure. I'm getting about 3" muffler.[/quote]

cool...I'll do that if it's not too pricey...thanks for the info

True Duels will sound better

If you plan to do a test pipe... get it from the manifold back - and go with single muffler. Sure.. it's gonna be loud without the cats, but hey... :yum: Depending what you like, and what you consider loud anyway.





The pipe should be about a 2" piping, the muffler.. well.. I'm not too sure. I'm getting about 3" muffler.[/quote]

lack of Cats barely affects the sound level. well i havnt ever heard one with cats, but it is by no means loud. just sounds like any other sports car exhaust



mufflers and headers have the biggest effects on sound, as well as the gauge of material used for the piping



duals sound like ass IMO, ESPECIALLY with stock mufflers, the exhaust notes are too defined



Justin

If you plan to do a test pipe... get it from the manifold back - and go with single muffler. Sure.. it's gonna be loud without the cats, but hey... :yum: Depending what you like, and what you consider loud anyway.





The pipe should be about a 2" piping, the muffler.. well.. I'm not too sure. I'm getting about 3" muffler.[/quote]

lack of Cats barely affects the sound level. well i havnt ever heard one with cats, but it is by no means loud. just sounds like any other sports car exhaust



mufflers and headers have the biggest effects on sound, as well as the gauge of material used for the piping



duals sound like ass IMO, ESPECIALLY with stock mufflers, the exhaust notes are too defined



Justin[/quote]

ive heard one with a hi-flow cat and it sounded really nice to me.

i think the besty sounding muffler is "TANABE RACING MEDALLION" and someone i know is supposed to find out for it for me https://www.nopistons.com/forums/pub...IR#>/smile.png

If you get the racing beat header,will it have a spot on it for the oxygen sensor? Do you guys know of any mufflers that arent VERY loud and hae a low tone? I want to get racing beat header, presiliner where the cat is, keep stock y-pipe, and replaced mufflers with performance ones.

Yes, the RB streetable header has the boss welded on it for the O2 sensor. I really like the sound of the full RB system on my car, but it's a bit expensive.

I have a Rotary Performance dual cat back on my 88 (which is basically a Dynomax system with extra paint) and it sounds suprisingly really good with a low baritone sound. I do have a RB cat elim pipe with presilencer though, I'm sure a header would be louder.

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