Im having issues getting my 4" dp/midpipe that i bought off a member on SF. Seems like i would have to take off the manifold put in the dp and then put the manifold and turbo on. Below i have pictures, do you guys think cutting the dp and making it a 2pc work without having to remove the manifold. It would be a pita to have to do this all the time.

 

If you can't snake it through from underneath just cut it and throw a v-band flange on it. It should fit quite easily if it was 2 pieces. However, I have a feeling you might be able to get it installed in one piece if you can get the car high enough.

 

Yes definitely cut it into two pieces, try and use a vband connection as it will be easier to bolt down. This will fix your issues. On the top pictures I would hack it at the 2nd weld bead left to right. Depending on the condition of that pipe you might be better off having a custom one made.

 

Exactly what those two above me said ! it will not work , till you cut it and put a V band between the two ( dp &Mp) it will always be a Pain to install and remove.

And you know the BWS366 doesn't come with 4" V band it's Marmon Flange that's on it , so you will either have the flange machine to a 3.5" V band or you will have to buy a marmon flange which is $70.

I would buy the marmon flange because it's cheaper and works great, by the time you do the V band mod , buy the V band and clamp you are looking at 150-200.
I had mine done and i can tell you it wasn't cheap, i am building another gte right now but i am going with the marmon flange and clamp .. it's cheaper.

 

Thanks guys il have it cut. Will update you guys shortly.

 

Just ordered the vband flange for the turbo. Will have all this done as soon as it gets here.

 

Glad we could help out. The S366 is getting more popular nowadays.

 

What ? tell me about it, I ordered one and yesterday i was told that it's on Back Order for 2 weeks, So i just told them to keep the order, i will wait 3-4 weeks for it no problem.

I love mine!

 

Cant beat it for the price and power it makes.

 

No updates?

 

I got it chopped in half put vband clamps on them. Works perfectly

 

^^^ Cool ! Now is it running yet ? you been slacking on the car.

 

I can start it and rev it but it needs to be tuned because i put 550cc in there running way too rich. I have been slacking though lol. I ordered some ccw classics also so im waiting for the tires to arrive.

 

It revs a lot smoother and is more responsive now. This was when i first started it which was a month ago. Open downpipe. Still gotta sand down the spark plug cover and paint it.

 

Question:
What is your guys take on a s366 with a 3.5" flange to 3" dp?
I'm not sure if the turbo actually needs that 3.5 or bigger down pipe to breath?