Hi I've looked in forum. I'm getting JSEC T2 engine + tranny tomorrow and the only thing missing is downpipe. I need some kind of dp to connect turbo w/convertible exhaust system.

I've read somewhere that Bonez pipe may work. Do you guis have any idea what I need?



Thanks

thunderfabrications also makes a 3" turbo to catback pipe thats inexpensive.



If you want something nicer we can make something in the shop...

What's thunderfabrications www?

Got the www. Thanks.

But I have to keep CAT so what do I need? I'm new to Mazdas - got now clue. I see some midpipes and stuff...

ANYWYAS I need to connect JSEC T2 turbo with US Convertible CAT.

go with a mazdatrix 3" dp to a universal v8 3 stage cat with a air tube , i wouldnt try and pass inspection with a single stock na cat.

So far need to put engine and have it driveable. Performance later.

I see you guys don't understand what I'm talking about.

Here again : need to connect stock turbo on JSPEC motor w/stock catalic converter on my 88' convertible. Need some kind of downpipe that will conect them both. I don't wanna change my stock cat - not yet - already dumped too much money in the swap

like i said your na cat will not work on the turbo motor what dont you understand about that damn, the heat will melt that thing very quickly and will not pass emissions anyways, do the right way and buy a 3 stage v8 cat wich is cheap at any parts store or farm n fleet and buy a good dp

i think the HKS downpipe goes from the stock turbo to the main cat.



or the RB 2.5" dp can do it, if you add about 2" to it



or you can get a us spec pre cat, and connecting pipe.



the turbo and non turbo main cats are the same, externally.

I thought a turbo vert needed a special downpipe? I think that is what Rychoo is asking.

yeah you're right, cause the verts got that extra cross membery thing. the coupe doesnt.



i think if i wanted a stock cat, id get the RB dp and cut it up