<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by HummBob:
When I got my Magnaflow installed, the tech suggested I get a throttle body spacer as well as headers. By reading a previous post, I guess throttle body spacer is a waste of time/money, but what do you guys/gals think of headers.
I'm looking more for performance as opposed to fuel saving.
IT'S A HUMMER, SCREW THE MILEAGE
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Quick comment...
1) Supercharge if you really want performance. Everything else is a minor change.
2) After they install the headers... they are going to Dyno it and make certain you are not running lean and killing the engine, right?
(Not to be picky...but the details on these things are killers... plus a good programmer on the dyno can probanly find you 25-50 HP)