what is the main difference between the oem jpipe and the one rv6?

 

???

 

Size and merge of the 2 pipes

 

How big is this difference as far as performance gains? And how did you get 375whp

 

when coupled with cat deletes, and bigger catback exhaust, u get some good gains...

im boosted, built motor, full bolt ons

 

j-pipe is one of the best add ons that do not alter the emissions and doesnt cost $$$$, but there is no way you can get Opel hp without boost. i have the ATLP j-pipe and 3rd Cat delete and they were a great addition, but again, its minimal when compared to a good turbo setup...which is available btw

 

Is the aftermarket j-pipe a worthy upgrade over the type-s j-pipe?

 

The Type-s has the same jpipe as the base.

 

even if it wasnt, stock parts are usually more expensive anyways so it would prob be a better option either way...