VE Calais, wanting to add extractors, which will fit?

[VE_CalaisV8]

Hey guys,

as title says, I'm wanting to add extractors to my Calais V8, its already got a 2.5" cat back walkinshaw system so logically I was looking at putting the walkinshaw extractors and hi-flow cats until I saw the price at $2500 (not fitted), what other brand would fit up to the walkinshaw cat back system? Pacemaker?

Thanks legends.

Also, the car has already been tuned (264rwkw, has OTR as well) but if I put extractors on, is it best to get it re-tuned?

 

[MYVESSV8]

if catback is bolted to original cats, then you could fit quite a few different brands of extractors, may need the tune touched up if you replace the standard headers/cats

 

[Vz SS]

Tune it is the way to go my old vz had a tune with just a cat back and made 230 the with extractors with no tune it made 215 then after the re tune and otr made 250 soi would have it tuned for shore