Hello All,
Did some one have experience with a BTB company - regarding exhaust manifold for M20B25 Engine?
I need some info regarding, increase power, torque and heat inside the engine chamber.
I have chance to buy one set and and I need your technical support.
Thank you
BTB manifold exhaust
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Grrrmachine
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Luca
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Hi 
Thank you, I know this link
But i need some real info from the drivers E30 who use or used the BTB manifold exhaust.
Thank you, I know this link
But i need some real info from the drivers E30 who use or used the BTB manifold exhaust.
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reggid
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the ducks nuts mate
E30 325is with M20B31
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Bump
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There's an informal group buy developing over the group buy thread for these.
You don't win friends with salad.