Exhaust Guru

its tapers pruely for the reason of back pressure. Spoon does this so they maintain mid power. Otherwise if your looking at drag racing ur car, u want the top end so the bigger un-taperd exhaust will help in this case the downfall being losing some lower end power.

Kinda like if u want the 4-2-1 headers for low to mid or the 4-1 for all out top end.

I belive honda have taped down some of their exhausts around the header flange to aid a bit of back pressure but i could be wrong. I believe vtec engines love to breathe so if you are custom making it use mandrel bends and as few bends in it as possible. If u want it quiet put one or two resenators in it but ull lose a bit of power otherwise dont run any and it be massive loud!

Guys dont kid yourself

The reasons why there would be tapers in an exhaust system is to save time and money when welding them.

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Originally Posted by 90LAN

i would only get a custom exhaust if there wasn't one i could by of the shelf!
why would one of the best honda tuners design something that was going to lose power? they improve on the design, in this case the spoon one has oem fitment, has a nice sound to it, and is lighter than the factory one! if you check the original spoon catalog it actually shows the flow rate of the n1 axle back over the original. try getting your exhaust shop to do that!!
by the way im running the spoon N1

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lol. the JDM marketing has made its mark. don't believe all you read in such catalogues. if we all took it as gospel we'd all have little gadgets like the top fuel power neo's on our cars in the belief we'd be making power.
a lot of these companies put a lot of consideration into making exhausts reasonably quiet as well, hence they make a compromise between performance and being able to live with the noise.
i'm sure the spoon N1 does an ok job but theres no reason a decent local exhaust fabricator can't match the performance.
in regards to other brands i've seen back to back comparisons on dyno's showing locally made systems making significantly more power.
frankly i think ppl get too bogged down on what catback they're running. imo the focus should be on the header.

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Originally Posted by sifoo

Guys dont kid yourself
The reasons why there would be tapers in an exhaust system is to save time and money when welding them.

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Ditto... :thumbsup:

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Originally Posted by sivic

lol. the JDM marketing has made its mark. don't believe all you read in such catalogues. if we all took it as gospel we'd all have little gadgets like the top fuel power neo's on our cars in the belief we'd be making power.
a lot of these companies put a lot of consideration into making exhausts reasonably quiet as well, hence they make a compromise between performance and being able to live with the noise.
i'm sure the spoon N1 does an ok job but theres no reason a decent local exhaust fabricator can't match the performance.
in regards to other brands i've seen back to back comparisons on dyno's showing locally made systems making significantly more power.
frankly i think ppl get too bogged down on what catback they're running. imo the focus should be on the header.

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Give that man a New... :thumbsup: :thumbsup: :thumbsup:

Bro Toda,

So you think all these are crap? Tappered or not tappered doesnt matter at all?

Toda dont make exo fot CL7?

english?

tapers are not needed in the catback section. it's mainly a fitment and noise issue.
a lot of these companies put a large emphasis on noise levels and will do what they can to achieve "accpetable" db readings so they can get their coveted JASMA badge and therefore help get more systems out the door.
the ol' JASMA approval is a big selling point in this market, however if you have a good look you'll see a lot of the genuinely better products/brands out there (one in particular) don't actually carry the badge of "approval".