And before you ask was I did a search.. B18B in a 91 CRX T3/T4 Turbo.. Ok going to buy some bends and not sure how many I need and at what angles. I was thinking 1 90 and 4 180's but I also have to make a down pipe. The pipeing will be 2.5 all the way and should I use a flex pipe in with the down pipe? Also need some flages Oil inlet and outlet. 4 bolt T4 Exhust and a TiAl wastegate flage.. Thanks

 

4 180's should be enough for all the ic piping and dp, you may want to get a straight section as well.

for flanges, check out cheapturbo.com or ask typert in our classifieds, he sells misc flanges.

 

nad yes there should be a flex pipe in the DP somewhere. the engine moves and that allows slack in the exhaust system so u dont break it off.. where.. im not too sure, but i think b4 the cat??

 

why not just use a donut gasket and the springs like on a typical header/cat combo?