Quote:
Originally Posted by RS_Matt
Powerflow are great if you don't mind going back to the fitters every 2 weeks to stop it blowing or hitting the back bumper.
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Unless you have had a bad experience personally with a company I dont think its fair to put people off a particular company or product
In my opiuon there is nothing wrong with a custom build as long as its done well.
As for 'off the shelf items' then, you really need to ask what your after:
Performance and Quiet - Magnex or Janspeed
Performance and bit of noise - Scorpion, Mongoose or Piper
Performance and Lot of Noise - Ashley or OMP
Most of the top manufactures list a stainless steel twin box (centre box and back box) system for around £250 - £300 depending on brand and seller.
A system without a centre box should see slightly more performance but at the cost of extra noise.
For the best power gains budget for a 4branch manifold as well, as this will get the gases out of the head quicker and into the performance exhaust.
Either a 4-2-1 or 4-1 will see gains in performance