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CSF Porsche 911 Turbo (996) / Porsche 911 GT2 (996/997) / Porsche 911 GT3 (997) Center RadiatorCSF has over 5 decades of experience manufacturing radiators. So when it comes to keeping your engine cool and your 996 997 running at its best, a CSF High Performance All Aluminum Radiator is the obvious choice. Designed to perform on the street or at the track, a performance radiator is a must have for both high horsepower builds as well as race vehicles which need added cooling performance in motorsports environments. This radiator features a 2 Row
CSF has over 5 decades of experience manufacturing radiators. So when it comes to keeping your engine cool and your 996/997 running at its best, a CSF High-Performance All-Aluminum Radiator is the obvious choice. Designed to perform on the street or at the track, a performance radiator is a must-have for both high horsepower builds as well as race vehicles which need added cooling performance in motorsports environments. This radiator features a 2-Row core with CSF's exclusive B-Tube Technology: Unlike a regular oval shape "O" type radiator tube, CSF uses a specially engineered tube in the shape of a "B". These "B-tubes" are carefully formed and then brazed over the seam to seal. CSF is able to use thinner and lighter aluminum material (with better cooling efficiency) because this design is actually stronger than normal "O" shape tubes that are welded. The design (inlet in the middle of the tube that is seam brazed) increases the heat transfer surface area of the tubes by approximately 15% over regular tubes - producing the efficiency of two smaller tubes vs. one large tube within the same space criteria. With "B-tubes" you are able to get "dual liquid laminar flow". CSF also uses ultra efficient multi louvered fins that are carefully and precisely aligned to maximize airflow through each radiator core. Fin specifications are carefully measured and calculated for each application, and tested for maximum heat rejection efficiency in our wind-tunnel lab.Shipping Notes
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4.8 ★★★★★
Based on 7 reviews
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Product Reviews
★★★★★ 5
Lessons described live up to the book title.
Format: Hardcover
A fascinating read filled with eclectic stories of corporate experiences--the good and the bad. This book provides deep insight and guidance for considering what really matters and is most effective in the internal workings of your company to bolster success.
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Reviewed in the United States on April 10, 2026
★★★★★ 5
Must read for any company owner
Format: Hardcover
If you own a company, have a business or are a manager, this is a must read
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Reviewed in the United States on May 24, 2026
★★★★★ 4
Indicators framework done right
Format: Paperback
I have found this book really useful. I would say it could be useful also for anyone working in a large organization and dealing with the challenges, virtues and downsides of performance indicators methodologies, both for career development within the organization and for the organization's success. The book confirms the need to read Andrew Grove's (1983) High Output Management. And it reminds us that Peter Drucker's (1954) The Practice of Management is still relevant.
I would highlight several ideas promoted by the book:
First, regarding OKRs:
the benefits of the transparency of OKRs, with all OKRs visible to the entire organization, from the CEO down to the lowest level employees;
the recommendation of dual planning (annual and quarterly);
the role OKRs should have on engagement, commitment and motivation;
the importance of constructing and cascading OKRs in a meaningful way as opposed to by rote (set them and forget them), enthusiastic compliance instead of bureaucratic compliance;
the need to have two kinds of goals (committed and aspirational);
the need to encourage staff to define a portion of their OKRs, to let them develop their own objectives, a healthy proportion of alignment (top-down) and autonomy (bottom-up);
the key role of culture and the impossibility sometimes of changing it without staff renewal;
the recommendation to separate bonuses from the OKR cycle;
the flexibility to adjust or discard OKRs mid-cycle;
the real risk of big organizations at any time of having some significant percentage of people working on the wrong things;
Second, all the discussion regarding performance management, the recognized futility and sometimes demoralizing effect of annual performance reviews, is very insightful.
Other thoughts, not original from this book, but worth recalling:
ideas are easy, execution is everything;
the ideal number of direct reports to a manager should be somewhere between 7 and 20;
the most important things need to get done first or they won't get done at all;
not everything that can be counted counts and not everything that counts can be counted;
transparency and accountability are two related but clearly different concepts, the latter rather an outcome, the former totally an output;
moral suffers when people know they can't succeed.
Unfortunately, the book has its shortcomings, most of them associated with the testimonies of OKR virtues. Particularly interesting is the case of Zume Pizza, presented as a success case (and OKR as one of the critical factors of that success story). However, we know now that the company bankrupted a few years after the book was published, showing that even the most successful venture capitalist is not always right, his knack for business not always foolproof. And also showcasing that OKRs might be necessary but certainly not sufficient. At any rate, since the book is complemented by a website (https://www.whatmatters.com/) I wish the author shared there a post-mortem, assessing what happened and the relationship between OKRs and that failure.
On the other hand, the case of Bono's NGO could have been spared. Zero value added. And, maybe, also the one about the Gates Foundation. Both examples are part of the book's evangelizing, metaphor-ridden and inspirational tone, where billionaires are presented as driven only for the possibility of bringing happiness to humanity and not as real people, that take most of their decisions in the pursuit of money, power or fame.
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Reviewed in the United States on August 16, 2025
★★★★★ 5
Improve any size business-use everyone's brainpower!
Format: Kindle
Use of OKRs is fantastic in any size business. Global goal setting and feedback- everyone in the company on the same page! Get ideas from all levels to solve problems and see improvements. Love it. Get input from everyone. Super great examples of how it works. Very good summary of each chapter at the back for quick refresh. Every business owner should read this book to make that company run well.
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Reviewed in the United States on November 7, 2025
★★★★★ 5
Great Execution Book!
Format: Hardcover
I just finished "Measure What Matters" by John Doerr. Such a great book full of advice for companies struggling with #execution.
My favorite #quotes from this book:
"Good ideas with great execution are how you make magic." @Larry Page
"Ideas are easy. Execution is everything."
"I view this year's failure as next year's opportunity to try it again." @Gordon Moore
"Specific hard goals produce a higher level of output than vaguely worded ones."
"Set goals from bottom up."
"Dare to fail."
"... four OKR superpowers: focus, alignment, tracking, and stretching."
"Bad companies are destroyed by crisis. Good companies survive them. Great companies are improved by them." @Andy Grove
"When you are tired of saying it, people are starting to hear it." Jeff Weiner
"Done is better than perfect." Sheryl Sandberg
"... if we try to focus on everything, we focus on nothing."
"Growth costs money."
"... you can only do one big thing at a time really well, and so you better know what that one is."
"Doing too much too soon will definitely end in pain."
"To inspire true commitment, leaders must practice what they teach"
"Transparency seeds collaboration."
"Having a good mission is not enough. You need a concrete objective, and to need to know how you're going to get there."
"... my favorite definition of entrepreneurs: Those who do more than anyone thinks possible ... with less than anyone thinks possible."
"If you set a crazy, ambitious goal and miss it, you'll still achieve something remarkable." @Larry Page
"Stretch goals can be crushing if people do not believe they're achievable. That's where the art of framing comes in."
"Feedback is an opinion, grounded in observations and experiences, which allows us to know what impression we make on others." Sheryl Sandberg
"Feedback can be highly constructive- but only if it is specific."
"Continuous recognition is a powerful driver of engagement."
"... a really good company values different opinions."
"... behavior defines a company more meaningfully than product lines or market share."
"Vision-based leadership beats command-and-control."
"People watch what you do more than what you say."
"Time is the enemy of transformation."
"... there was no shame in trying your hardest and failing, not when OKRs help you fail smart and fail fast."
"Goal setting is more art than science."
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Reviewed in the United States on September 20, 2018