ByByR1

Just wondering if a back box and panel filter would make any difference to my bhp on my 55 reg wrx. Also would the turbo spool up quicker. Thanks

Norman Dog

iTrader: (1)

Non whatsoever. Very first two mods I did to mine.

The WRX TD04 is very quick spooling to start with. Is yours a late Blob or early Hawk?

This will give you a rough idea of what is required for more power.

Blob WRX http://www.andyforrestperformance.co.uk/58901.html

Hawk WRX http://www.andyforrestperformance.co.uk/27344.html

ByByR1

It's the hawk eye, its seams to be strong mid range but don't put you in your seat until after 3k revs. It ok but would just like a bit more poke. Thanks for the reply and Will check out the feeds you sent

andy.downes

iTrader: (1)

My hawk was 227 on the dyno as standard. I put on a Prodrive back box, Scorpion mid section (I kept the cats) and a Pro R air filter and had it remapped. I got 272bhp and 350 Nm.

Norman Dog

iTrader: (1)

How did you keep the cats? you must have removed the second cat when you fitted the centre pipe.

http://www.ebay.co.uk/itm/SCORPION-E...-/330613689376

What you did to yours is pretty similar to what you would get fitting PPP.

ByByR1

Thanks for the replies, looks like i Will be saving up for a few goodies and a remap. Do you know anyone to do a remap close to middlesbrough which is north east. Cheers

Norman Dog

iTrader: (1)

Don't know of anyone immediately local to you but this gent has a very good rep on here and will travel.

http://www.jollygreenmonster.com/

I would say it's worth the trip to Scotland to see Andy Forrest, the drive back in your 'new' car will be the best you'll ever have!