It boggles the mind to think how some people can get through school and life not knowing how to at least do a rough metric conversion.

Here: http://convert.french-property.co.uk/#volume

70mm = 2.76"

25.4mm = 1"

 

T1R is also known as Type 1 Racing but T1R for short, 70milimeter is the size of the piping xviper has it down for you above hehe

 

ben got 14 whp out of it. see his dyno sheet.

 

Is this exhaust loude? I can't find a soundclip...

 

I have the J's header and 70mm exhaust and got 000 power gains. so be skeptical, be very skeptical.

 

yes its loud, the 60mm is loud also

 

I'd be willing to bet that the vast majority of people don't know how to convert mm into inches...it's kind of a useless thing to know unless your an engineer (or unless ur into converting exhaust piping diameter sizes frequently).

 

that is false

T1R is a side company of A&J Racing in canada

Type 1 Racing is a side company of Spoon Sports in Japan

they are not the same company, they are in no way shape or form connected at all
i wish people whould stop saying that there are the same company

 

Really, I'd say you're the first, what 70mm exhaust do you have? J's, T1R or Amuse?

 

70mm = 2.75 inches.

All you need to type into google is "mm to inch converter" and I'm sure a long list of sites will come up that do all types of conversions.