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Message: <blockquote data-quote="full-race geoff" data-source="post: 2097074" data-attributes="member: 6864">FYI - I like SPD products, excellent quality parts.  Their  downpipe and exhaust products are outstanding.  2 issues with the alpha downpipes we stopped selling to our Garrett powermax customers:1) Mild steel bolts, lock washers and flanges - we prefer oem hardware for this specific connection.  ford goes to great lengths with high quality non-magnetic downpipe to turbo hardware.  you must use stainless or high nickel fasteners otherwise when the turbo gets hot the threads loosen and exhaust can leak / things can start burning (ask me how I know)[ATTACH=full]483311[/ATTACH]2) SPD flanges are a little small at the bore for the Garrett powermax turbine side.  Here is a comparison of the Garrett sized opening on the SPD downpipe to illustrate how much would need to be ported to match.[ATTACH=full]483312[/ATTACH]</blockquote>

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