Teague’s Countdown to Christmas Free Stocking Stuffer

Free Stocking Stuffer PromoWe are excited to announce that we are offering a FREE holiday stocking suffer* with online orders received during Teague’s Countdown to Christmas Stocking Stuffer Promo.  This offer is only for online orders of $150 or more, received during our holiday promo from 12/9/19 – 12/30/19, while supplies last. Continue reading

Black Friday Specials Start Today!

We are excited to announce that we are offering 25% OFF on ALL TCM products* ordered online plus a Lifeline Comp Vest + Orange Helmet Combo Special*  for our Black Friday promotion, valid from November 27 – December 2, 2019. Continue reading

Teague On Tech: Q & A with Bob Teague November 2019

Speedbaot Magazine Cover Art

As seen in Speedboat Magazine’s November 2019 Issue.

Headers for 454
Magnum MPI

Dear Bob:

I have a 27′ Checkmate with a 454 Magnum MPI. Currently, the exhaust is stock MerCruiser cast iron manifolds and risers. The boat is also equipped with the Corsa Captain’s Call switchable system that diverts the exhaust through the pro­peller hub when activated. I need to keep the ability to silence the engine. I was planning on doing some upgrades to the engine soon with a more aggressive cam­shaft profile that is similar to what is used in the Mercury Racing 525EFI.

I have been told that my stock exhaust system will hinder performance and their use may result in exhaust water reversion with the increased cam duration.

I was considering the CMI part number 13186, but l need to know if they can be installed in conjunction with my current Captain’s Call system. If not, what system will work?


Damian Zapata Odessa, TX

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