Well this morning me and some friends took off my stock exhaust and put on the RB true duals all the way to the y-pipe becuase i bought some different mufflers. I drove around (VERY CAREFULLY) without the mufflers and holy cow its loud, i hope the mufflers help out ahhaha even though they are straight through. Anyway, when the exhaust was off i looked at the exhaust ports and i was wondering what the white L-angled stuff is in the exhaust port, it looked weird?

 

its to keep the housings rigid and prevent warping

 

[quote name='rx7man629' date='Jun 13 2005, 09:46 PM']its to keep the housings rigid and prevent warping


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Where did you ever get that idea? Its a diffuser, and its to quiet down the exhaust on the n/a's.

 

[quote name='mazdaspeed7' date='Jun 13 2005, 08:55 PM']Where did you ever get that idea? Its a diffuser, and its to quiet down the exhaust on the n/a's.


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its loud enough as it is, i am glad those things are in there.

 

only difference between na and t2 housings is the diffuser, you can cut it out and smooth it, and walla a t2 housing.

 

[quote name='NoeVuh' date='Jun 13 2005, 09:34 PM']Well this morning me and some friends took off my stock exhaust and put on the RB true duals all the way to the y-pipe becuase i bought some different mufflers. I drove around (VERY CAREFULLY) without the mufflers and holy cow its loud, i hope the mufflers help out ahhaha even though they are straight through. Anyway, when the exhaust was off i looked at the exhaust ports and i was wondering what the white L-angled stuff is in the exhaust port, it looked weird?


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Don't worry - it will still be stupid LOUD with the mufflers on.

Rotary really NEEDS presilencers as well (and mine is still to boomie at 3000RPM liveable at 2500 or 4000 though )