Super Jet Factory B Pipe Couplers

[shmity1]

My factory B Pipe coupler, closes to the exhaust header/manifold, ripped and I need to find a good source for new silicone couplers.

First question is, what is the diameter for the rear coupler? 4", 5"?? I am at work and don't have my ski in front of me.
Second question, do you buy your couplers from Factory? I am OK with that but also need to find a good source for extended lengths for a project I am working on.

Thanks

Shmity

 

[Seanc]

4". I buy mine from siliconeintakes.com $9.99 a piece and I can get a season out of them and I take mine apart a lot.

 

[tor*p*do]

jetmaniac >> silicone intakes IMHO

 

[shmity1]

Why does everyone use Silicone couplers when silicone isn't compatible with Gasoline or oil?