What exhaust did you use for a normal beta swap.



Our UK 1.3 as a 1.6 Inch exhuast. With Bends in the exhuast narrowing to 1.3Inch.



The Beta Engine in UK as 2" Exhuast.



Did u guys use a Beta 1.5 Exhausts ?



Size______Single Exhaust Pipe______Twin Exhaust Pipe

1 1/2"____________78bhp_____________________155bhp

1 5/8"____________92bhp_____________________185bhp

1 3/4"____________108bhp____________________217bhp

2"________________144bhp____________________289 bhp

2 1/4"____________185bhp____________________371bhp

2 1/2"____________232bhp____________________463bhp

2 3/4"____________288bhp____________________566bhp

3"________________339bhp____________________679 bhp

3 1/4"____________401bhp____________________802bhp

3 1/2"____________468bhp____________________935bhp

 

Many 2.0 Beta owners would get a 2.25" exhaust for performance

 

if you put a dual exhaust on a 4 cylinder you are a tool

 

^ lol

 

I did full 3 inch from the turbo back no muffler no cat. Just straight pipe.

 

2.5" crush bent system off the stock beta II header, eat me.







Your graph there is a rough as guts guide man, there is a lot more to exhaust tuning, and most results aren't noticeable anyway - even on a dyno.