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The mkiv Supra Owners Club

exhaust and de cat+ air filter


Guest supraman1968

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Guest supraman1968

hi all, i ready to fit stainless exhaust and after market air filter to mt TT, will this cause over boosting as it did on my evo 6 before it was remapped or will this be ok, thanks

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You will need to go FULL decat inc cat back exhaust to over boost tbh. You will need to fit a 1 bar or a 1.2 bar restrictor ring after the first cat to limit the boost. Then buy everything else for to go full BPU as mentioned above search for BPU and have a good read.

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You will need to go FULL decat inc cat back exhaust to over boost tbh. You will need to fit a 1 bar or a 1.2 bar restrictor ring after the first cat to limit the boost. Then buy everything else for to go full BPU as mentioned above search for BPU and have a good read.

 

all the above Plus dont bother with after market air filter as the stock air box does the job better than after market ones ;)

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Guest supraman1968

bought stainless with de cat, where is best place to perchase restrictor ring and Fuel Cut Defender,thanks, also does the fcd need some sort of mapping or are they a easy fit and set up,

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