firstgen689

what would be the best exhaust system for my 12a? how good would headers and straight pipe be

Jeff20B

iTrader: (13)

Straight pipe would be bad.

firstgen689

oh well some i know said it gets pretty good performance i know this probbalbly bad what about a cheap glass pack? Or what about a 3 gen or secon gen exhaust? Im just trying to get options

XLR8

iTrader: (52)

Headers and a straight pipe would be not practical for the street. I don't know if you have ever heard an NA rotary with a header and open pipes but they are VERY loud. They make the 4 bangers with the same setup sound quiet.

I would recommend a RB header and presilenser into a Magnaflow muffler.

They are quality and have stainless packing. They also sound very well.

Jeezus

iTrader: (4)

Header backs are super loud.

Glasspacks will melt within a few months if you are lucky.

Main Headers are Racingbeat, or Mazdatrix.

Main Exhaust choices are Racingbeat, Borla, and Magnaflow.

Stay away from anything Pacesetter.

firstgen689

k thanks

Glazedham42

iTrader: (4)

I would recommend silencing that exhaust somehow. If you use a straight pipe your ears will bleed. I fired up my 85 GS with open headers one time and I thought my garage was going to fall in on itself. Loud is not the word to describe it. Even with your fingers in your ears it still hurts.... Unbeliveable....

firstgen689

lol what about the stock silencers i got 4

Glazedham42

iTrader: (4)

I don't remember any stock silencers... Are you talking about the catalytic converters? Most FB's have this setup: Manifold > cat > cat > cat > centerpipe > muffler. You should be able to get a NICE presilencer from Racing Beat. They quiet the rotary down a lot, and last for ever. On the downside they are a little heavy...

firstgen689

i thought the little ones where pre silenceres boy i feel dumb

Glazedham42

iTrader: (4)

The rotary burns pretty dirty, which has always been one of its downfalls. It takes a lot of catalytic converters to clean up the ol' 12A apparently. As a matter of fact it takes 3! While they do help quiet down the exhaust quite a bit, their main function is to preserve the air that you and I enjoy breathing so much.

firstgen689

well if thats the case my cats dont work worth a crap

Manntis

Lose the cats. Go with a RB header and presilencer. If you can afford it, get the complete RB system. If not, substitute a Borla muffler.

firstgen689

i got a ricey greddy muffler (it probablly wont work or look good) but what will it be like on the rx you think it would melt or blow out? ill probably just put it on my bu