Billet head/X pipe combo from ebay

Earbiter said:

Hello, I was just wondering if anyone has this high comp head and X pipe combo, and what the general thoughts of it were? Is it worth $103 after shipping? what kind of gains would one expect from them? (upper, mid, lowrange)

thank you.

http://www.ebay.com/itm/Billet-Head...-Motorized-Bicycle-/231308846866#ht_957wt_801

Click to expand...

You are looking at Bicycle Motor Works 'Double Punch Pack'.

https://www.bicyclemotorworks.com/store/products-page/double-punch-pack/

The pipe - I actually ordered myself, last night as a spare/backup for my current build - whatever pipe doesn't get used on it, goes on my already existing MAB. It is advertised on other sites as increasing torque at the low end. It also may well need heating up and bending, and otherwise further modification to fit on your own chassis/engine setup.

They shipped out this AM - which shows that they have pretty quick shipping at any rate.

The head - not sure on that one, on whether it's one of the infamous Chinese clone, or of a legit design.

Before any mod 'works', you have to have the proper setup to make work. Bolt-on and go, expecting an instant performance boost, seldom works. Just FYI.

That's a pocket bike pipe, I would advise at least giving it a new and longer header.
But can't say they are all that great.

Not even on a pocket bike!

the SBP pipe has to be one of the best pipes you can buy without making your own... I'd recommend the SBP or the Snake pipe that Arrow racing sells, both excellent pipes.
Other pipes to consider if you don't mind doing a little welding and cutting are dirtbike pipes from a KTM 50 or 65, the KX65 pipe works very well too and same for the YZ, CR, and RM 65 or 80 pipes, any of these will do you very well but won't fit right out of the box. If you can get a used FMF Fatty pipe off one of these dirtbikes for a decent price I'd also say go for it... you won't be disapointed.

I'm currently using a modified KTM50 pipe and it really woke up my ride...