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The BMW Range
3 Series
E30
E30 M20b20
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<blockquote data-quote="a-boo" data-source="post: 12142" data-attributes="member: 11126"><p>hi there,i have a question on this particular e30 engine, i would like to know is it advisable to add HP :a) change the throttle body to 2.5"? b) or just rebore the original throttle body to 2.5"?c) Upgrade my current extractor to a custom one? For question (c) i heard that a new custom extractor will be more hotter than the stock ones yet better flow ofcourse but it will melt seals around the engine. please advice me sifus. thanks!</p></blockquote><p></p>
[QUOTE="a-boo, post: 12142, member: 11126"] hi there,i have a question on this particular e30 engine, i would like to know is it advisable to add HP :a) change the throttle body to 2.5"? b) or just rebore the original throttle body to 2.5"?c) Upgrade my current extractor to a custom one? For question (c) i heard that a new custom extractor will be more hotter than the stock ones yet better flow ofcourse but it will melt seals around the engine. please advice me sifus. thanks! [/QUOTE]
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