help on exhaust headers

[kdefeu]

Hey guys getting a lot of mixed reviews from people about exhaust headers my standard one is cracked and blowing badly so was thinking of getting a replacement one, but a performance one, but my question is people keep saying to me that it will make the car lag is this true
Thanks

[Mortster]

Unless your chasing big power figures, go with some standard ones, but get them ported. Easy job to do with a dremel and a little patience.

Use the gasket as a guide to where you can grind too, and give them a 45o edge.

[kdefeu]

I not going for big power gains but I do prefer the sound of a good header but does it make the car lag

[Hongkongfooi]

i thought that performance headers improved spool and reduce lag

[SpecB]

Tubular will not improve spool as they are generally larger therefore gasses flow slower and reduce spool, a matched up-pipe can help but ported is usually best up to around 400bhp

[kdefeu]

Oh I am just going for a performance header it's basically slightly better for smoothness it's not tubular

[The_blue_knight]

I have stainless headers and they have also cracked a few times. I am going to wrap it, to prolonge the life a little longer. Mine is quite laggy but it was on the car when I bought it.

[C. J.]

Change the type of header , then don't forget to at least get a power run or co one with afr meter to check or it could be expensive .
If it was me I'd stay standard up to 400bhp ported or not

[kdefeu]

Thanks guys cheers for the advice i think i will leave it

[Hongkongfooi]

http://www.rogerclarkmotorsport.co.u...?productID=286