That's cool, I've only done them for sound, and my existing manifold was fucked so that's why I chucked the Janspeed one on :)

all that hardware will give you +
4 to 5 bhp :lol:

This is the painful truth

I would say drilled airbox was about 1bhp not 3.

Exhaust is about 2/3 I have been told

yeah ull be close to 100bhp id have thought.

So I could be near 100bhp?

Backbox does give you something in my opinion.... even if it simply moves the power higher up the rpm range.

I've already got those mods. 2ltr is the plan, so i'm not really looking to mod this one much. Cheers anyway :)

before u get those mods buy a new inlet, will cost u about £400ish, but give ya 20bhp tops,
backbox=nuffing really
center section 1-2bhp
drilled air box=3bhp?
4-2-1=4bhp??
all rough guesses. also id the center section any bigger bore than the standard system, may i sugest the bfo exhaust system?

Engine - 1.4 16v

Mods:

Scorpion backbox
Straight-through centre section
PVD panel filter drilled airbox blah blah
Janspeed 4-2-1