What size should expect to get from the GB? I got the 4-1 header. If it is only 2"...then why would I need a larger (2.5") exhaust? And then what size CAT do I need???? RANDOM PLEASE clearify the headers in the GB...4-1's..for certain.

Thanks

 

Contact Sam directly but don't expect email response anytime soon because of Lunar's new year.

Random already said that, as far as he knows, 4-1 header is 2.5".

 

Then why's peeps getting 2" ? And hwen is Lunar over? (Whats Lunar day) ? wink.gif

 

I don't know why you guys are getting 2" pipe sad.gif

But I do know that Korean Lunar Year = Chinese New Year. Tomorrow is Lunar Year (Right now in Korean time) but most people won't get back to work until next Monday.

 

The 4-1 Header should have a 2.5" end pipe, not a 2" end pipe....

 

I have a 2" end pipe too !!! sad.gif

 

The ID of the flanges on mine is exactly 55mm, or ~2-3/16". The DIN standard nominal diameter for 2.5" pipe should be 65mm, but tubing should be exact (63.5mm).

[NOTE: I mean the main exhaust pipe flanges, not the individual tubes that come off the block.]

[ February 12, 2002: Message edited by: Veniston ]