Hello everyone, I need some help in deciding what to do with my exhaust problem. I have a Racing beat header and presilencer and a y pipe coming off of the pre-silencer with 2 after market exhausts (not sure what kind I bought the car that way). I was thinking if I could just remove the exhausts and add on some flowmasters or even stock mufflers. This thing is really loud and I don't want to have that typical HONDUH noise with no movement...look. I want something low and nice kind of like a mustang sound, if that's possible.

Idleing the car is beautiful but after that it's disgusting!

Could I just change out the exhausts for some mufflers?

Thanks in advance,

 

Try Glass Packs, I have that setup and am very satisfied with it. Plus they're cheap.

 

That setup should be not that loud.

How old is the RB presilencer?
It could be all full of deposits.

 

The presilencer from RB doesn't do nearly as much as the mufflers.

If you got quality mufflers it would probably be a hell of a lot quieter.

I used to have RB's cat replacement pipe, presilencer, stock y-pipe with N1 Style Mufflers, and it was loud as ****. Once I installed the RB cat back with that system, noise was lowered INCREDIBLY, and it sounded way better. Nice and smooth. Now I've got the full RB system from the Header back. Once I plug the exhaust leak on the header itself (small hole for EGT gauge, ghetto-plugged for now) it should sound way better.

James

 

there are a few things you could do -

1. switch mufflers
2. add a resonator (if you have space, you probably don't)
3. add diffusers at the muffler outlets

i did #2, and then #3. The resonator helped a TINY bit. But the diffusers quieted it down a lot more. the diffusers are basically just exhaust pipe that has a reduced inlet or outlet (depending on which way you orient them) diameter that chokes the flow, because they are smaller diameter than the muffler core. they are just welded in the mufflers. or you can make them removable using bolts(silencers on N1 style mufflers).

 

If you've already got a header/presilencer, it's most likely the mufflers that are making the car sound bad. Whatever you do, don't switch them out for Homasters, chambered mufflers flow like crap and sound even worse. I suggest something quality but still straight-through, either some Racing Beat mufflers, or you could fit two magnaflows there, too.

What mufflers do you have on there right now, some 5" grape-fruit shooter fart cans?

 

I wouldn't recommend straight through. I had a header,2.5" exh., a resonator and a straight through muffler with a silencer and it was still way too loud. I would go with the complete rb set up.

 

A presilencer with two 4x9 straight through magnaflows should be about as quiet as a RB exhaust, provided you use some double-wall tips.

 

Racing Beat cans are straight through.....


Don't buy N1 knock-offs thinking all straight through cans are identical because they aren't.


Cans made by good companies like Borla and Racing Beat reduce volume without killing power.

 

Couldn't have said it better myself. RB makes real quality products, and their mufflers sound good, but they are very expensive. A lot of 2ND gen guys use Borla, too.

 

what to do....what to do....

 

I've heard good things about the Borla mufflers.

 

i say dont be such a wimp and as for the honduh noise .. its impossiblew u drive an rx7 witch in its own has a VERY distinctive exhaust note .. i have racingbeat header no silence no cat 3inch pipe iinto a ractive muffle .. u want loud .. thats loud ... urs should not be loud at all ..

 

Ractive mufflers awefully dull the noise. Try a complete straight pipe then listen to loud.

 

its not one of thoe rediculous fart can muffler thoe .. its only got a 2.5 outlet .... so it just barks at high rpm .... its ear peircing loud lol .... the kinda noise thats so loud it makes u blink when u hear it lol

 

i have glasspacks, sonds nice and low

 

i have stock pipes and a corksport, and thats pleanty loud for me, although if i went with a RB header i would probably install a Borla XR-1 midpipe where the cat is and use a silencer for daily driving.

 

I guess you own a honduh huh?...I just meant that they are known for the noise. All that noise and no speed...I don't want to fall in that category. I don't want to cancel out noise I just want to decrease it substantially.

BTW loud is starting the car with only a header. When you've done that then let me know...

 

Lol!

 

I started my car with just the uncollected header. Not quite as loud as a collected, but still VERY loud, lol.

Anyways, don't risk glasspacks, rotary's tend to blow them out quite quickly. SOME are made with enough quality, but, most, not so much..

I've never heard ANYTHING good about Flowmasters on an RX7. I heard they sound disgusting, and burn out very fast. Now on my parents Mustang GT, it's a different story :P

Nonetheless, I'd recommend the Racing Beat's. Borla's are good too, but a full Racing Beat exhaust system just works so dang well together! I have true duals, and Tofuball currently has the collected system. They both sound fantastic.

 

I've got an RB header and an RB catback. The RB catback is so quiet you can run run with a straight midpipe and it will still be very manageable, even with a header.