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The mkiv Supra Owners Club

Exhaust Question


n00b

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hi im looking at replacing my exhaust and as im a bit of a n00b i could do with some advice,

 

the measurements of the muffler/backbox is

Inlet size: 2.5”

Barrel size: 7” O.D, 14” Long;

Tip size:4.5” O.D single wall tip;

 

would this fit onto the back of the supra?

 

as i get the standard NA exhaust heat shield rattle i was going to look at replacing the exhaust pipes.

 

is there and off the shelf replacement i can buy or would i need to have some fabricated? is this called cat back?

 

thanks for any advice guys

 

Charlie

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hi im looking at replacing my exhaust and as im a bit of a n00b i could do with some advice,

 

the measurements of the muffler/backbox is

Inlet size: 2.5”

Barrel size: 7” O.D, 14” Long;

Tip size:4.5” O.D single wall tip;

 

would this fit onto the back of the supra?

I'm not sure I understand. :)

 

Have you just got a single muffler/backbox that you want to fit on the standard exhaust?

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sorry for being confusing.

 

i have a single muffler on order (the back box thing only). and i would like to know if its possible to buy the rest of the exhaust up to the cat (or replace the cat is it ok just to have 1 cat im not sure of the implications of this, ie mot)?

 

but the other question is would a 14" x 7" back box fit into the space where the old back box was?

 

hope this clear things up a bit, sorry again

 

Thanks for your time

 

Charlie

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the exhaust has a electric remote control butterfly which depending on if its open or closed sends the fumes either straight out (very noisy) or down a side chamber 3 times and then out (very quiet) ive had to source it from australia as they dont sell them over here (well i cant seem to find them) i think its a good solution to the having a loud na and living in a residential area.

 

thanks for the advice on the MOT :D

 

Charlie

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The backbox sounds interesting, However you could have got a normal exhaust and bought one of those Apexi exhaust butterflys...(They do have a Name, I just cant think of it off the top of my head)

 

I think youll have to get a fabricator to build the system for you... shouldnt be a problem atall..

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which one would be better a 2.5 inch inlet size or a 3 inch inlet size?

 

Shouldnt make too much difference on an NA, I am guessing the butterfly would be a bigger restriction when in quiet mode.

 

I have a Nur Spec with a bung in it for my NA and thats not too loud, different story when you take it out and I still have both cats in place.

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Shouldnt make too much difference on an NA, I am guessing the butterfly would be a bigger restriction when in quiet mode.

 

I have a Nur Spec with a bung in it for my NA and thats not too loud, different story when you take it out and I still have both cats in place.

 

cheers wez :D

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