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4.2 Range Rover Supercharged peak power after upgrades?

17K views 2 replies 3 participants last post by  LR4Life 
#1 ·
Hello everyone,

I'm interested in buying a full size 2007 RRSC and I'd like to know what mods and upgrades are available for this car? As far as i know, the most powerful RRSC is the Overfinch one, with 440hp but i'd like to know if anyone knows how to make it more powerful? (apart from getting a 2010 model, because I cannot afford that right now)
 
#3 ·
Hello I have a tuned S/C Rover, I had a the pulleys done, see this web site, the porting and polishing (www.eurotoysltd.com) and the ECU reflashed. I have a stock exhaust on still due to how nice an quiet the car is. I have driven a stock S/C and mine is much more powerful then the stock. low, mid and high speed passing is much better.

I imagine if an exahust were added, you would bet more gains, I would go with the Borla cat-back
 
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