There are quite a few to choose from,i have the MiniMania 4-2-1 manifold on my JCW and cannot fault it,noticable increase on the butt dyno,and a graet soundtrack!!
The GTT with removable Cat is better than the Janspeed tho essentially the same brand,but Roland@ GTT is working on a newer version which looks very interesting.
Then there is the JCW motorsport manifold which is quite pricey, and not to forget the Milltek manifold which is a quality bit of kit.
IMHO a 4-2-1 manifold will give a better power increase, but nobody has tried Rolands new one yet!
Comming soon guys. a manifold from the USA it will blow the doors off anything else out their. it is nearing the end of development soon. he has also developed a big valve head that delivers 30whp!... i soon will be on the list for one myself after he supplies all the back log... this guy really knows his stuff its about time we had a few real horse power bolt on bits...
Going to pick up my JCW from the local dealer tomorrow morning with a brand new GTT manifold just installed... (along with the GTT strut brace and Lohen's aerokit grille).
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