thoughts on these?

http://www.racespecperformance.com/e...%20manifold%22

seem alright, bearing in mind the max il run through these are 350bhp.

Dont wana spend 600 quid to just release a few more ponies as im touching 320 as it is...

 

cheap nasty gaskets and a flexi upipe which nearly always breaks after a while.

 

As Arf says. Look out for a decent set of GT Spec or similar in the for sale section

 

How about porting your OEM headers for a bit more flow.........usually an exchange jobby for about £100

Shaun

 

I'd go for the oem exchaange know someone that does that?

 

Harvey did mine, ported and very well wrapped in DEI wrap, unfortunately he's a bit poorly at the moment and I don't know if Darren is doing it for him.

David at API does an exchange and I guess enginetuner and places like Finch motorsport may do as well.

Shaun

 

I agree Harveys the way forward, get the OEM ones ported and Harveys give you the option for a solid up pipe, easy to fit as there OEM!!

 

port you own with a carbide burr

 

Standard headers do well to be honest, and porting them helps.
You can also loose low end torque, which is never good.