On my 2003 Blobeye STi with PPP, the existing centre section - what's the diameter? Is it 2.5" or 3"?

As i understand it it's currently resonated and a straight through pipe is a cheap way for a bit more noise and a very slight if any bhp increase?

Do i need to look out for a 2.5" centre non-resonated pipe? as ive seen 3" ones about but surely that would require some work to mate with the backbox pipe and the de-cat pipe thats at other end.

 

2.5inch

 

thanks

 

The resonator section is part of the original exhaust and is in fact, slightly less than 2.5" - nearer 2 3/8"
TSL do a 2.5" resonator replacement section, for instance.

JohnD

 

Cheers John, you helped me before with exhaust question and during that thread you mentioned the pipe was smaller than the PPP stuff was going to pm you to clarify but that explains it

Ive seen ones from TSL, H&S and apparently Milltek do them also but havent found that one yet.