86inthe530

gotta smog my car any bolt on high flow cats for a 86 na?

ericgrau

iTrader: (1)

Bonez. www.rx7.com has them. Also do a forum search on "auxillary ports". They are exhaust backpressure activated. Less exhaust backpressure means you'll need another way to activate them. Otherwise overall you'll lose power, not gain power. Simplest way would either be a new exhaust pickup tube location further up the exhaust (included in some setups) or air pump activation (DIY with a little piping).

daviddeep

iTrader: (4)

Hey 86inthe530, you might be interested in this thread from a few weeks ago:

https://www.rx7club.com/2nd-generation-specific-1986-1992-17/high-flow-catalytic-convertor-list-734413/

I hope you pass your smog test!

K!NCH

iTrader: (2)

Not to thread jack but does any company make a 2.75" or a 3" high-flow cat?

DavidHolmesIII

Bönez makes a 3" blank, no 2.75 though. If you want that one, you better know how to weld

K!NCH

iTrader: (2)

Yeah I sorta figured, I'll probably go with the 3

86inthe530

does any one have bonez cats installed?