More power, Hi Flow Downpipe
#1
More power, Hi Flow Downpipe
From Graham Goode Racing for all Classics
http://www.grahamgoode.com/subaru/p...v=9&item=GGS604
In many peoples opinion this is the first modification you should do to increase power and torque, it is a genuine performance bolt on, THE most important section in the exhaust system. Wide exit back boxes -
Normal down pipes and even some de-cat down pipes block 40% of the flow This has a wide throat, properly shaped for the turbo exit, allowing the turbo work to it's peak
Standard cats have 600 cells per square inch, these have just 100, which reduces back pressure enormously, however your car should remain legal for MOT emissions. Manufactures figures CO 0.70, HC+NOx 0.39 and HC 0.10.
Normal price £465. Group buy inc VAT & delivery £375 for just 3 orders
The pipe is a 3" bore narrowed to 2.5" where it joins the rest of the system, so it is compatible with OEM exhaust and most after market cat back systems too.
With no other modification you will see a GENUINE +25bhp plus it will greatly improve torque lower in the rev range and reduce heat stress on the turbo.
All in all
#4
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Originally Posted by ScoobyDawg
clint,
did they give you a price for fitting.
I think my centre section's a 3''er, I had better check.
ScoobyDawg
did they give you a price for fitting.
I think my centre section's a 3''er, I had better check.
ScoobyDawg
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