October 7, 2015

BMW F82 M4 – Velos + KW Suspension


Recently we had this attractive M4 in for a few upgrades. First on the list was a truly head-turning set of Velos S3 wheels in 20×10 / 20×11 for MCCB fitment in Matte Clear finish. We paired those with Michelin Pilot SS in 265/30/20 + 285/30/20, and finished everything off with the tried and true KW V3 coilover system for a perfect stance and striking appearance.

The owner certainly enjoys the new look, so enjoy the photos!

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October 2, 2015

BMW F10 M5 build by PSI

The Wake of Magellan – BMW F10 M5 by PSI


When ordinary is not enough, we reach for the extraordinary. More often than not, that pursuit becomes a voyage, one filled with landmark events and above-average memories to savor for a lifetime. Our client is a family man, but wanted his family car, a new BMW F10 M5, to be unlike any other. Here at PSI, we are no stranger to pushing the limits while maintaining a pleasing aesthetic. During several conversations, we realized that it was time to look beyond the usual wheel styles and sail into unknown waters. Enter HRE Wheels, with their RS-series Street Collection.

Well aware that a mis-step can sink an otherwise fantastic build, we settled on the striking RS102M model, with their unmistakable 5-spoke design. The directional design resembles a ship’s propellers, and is impossible to ignore out on the street, while the Satin Charcoal Gray finish offsets the Sapphire Black body paint. We had the inner barrels custom painted to match the centers and lips for a seamless match. With the perfect set of wheels in place, acquiring the perfect drop was necessary, and a set of KW Variant 3 coilovers fit the bill perfectly. Their build quality and adjustment levels enable a comfortable, smooth ride on virtually any surface. Having the stance sorted, we installed an Akrapovic titanium exhaust system to add some crackling thunder and reduce weight.

To complete the look, we added a carbon fiber Vorsteiner front spoiler and rear diffuser, which enhance the elegantly aggressive appearance, while inside a complete BMW M Performance carbon fiber trim set was carefully installed. IND supplied the finishing touches in the form of gloss black front and side grilles. Our client can now get underway with dramatic style, leaving lesser vessels in his wake.

Mod List
HRE RS102M 21×9.5 / 21 x 11 in Satin Charcoal Gray finish with custom painted matching barrels
KW Variant 3 Coilovers
Akrapovic Titanium Exhaust
Vorsteiner carbon fiber front spoiler
Vorsteiner carbon fiber rear diffuser
BMW M Performance interior trim
IND gloss black front/side grilles

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September 22, 2015

Introducing Frequency Intelligent Exhaust!

We are proud to announce that we are now an official dealer for Frequency Intelligent Exhaust systems! FI Exhaust produces full high-quality exhaust systems for Lamborghini, Ferrari, Aston Martin, Porsche, AMG, BMW and more. Their cutting edge development methods, including the use of Valvetronic© Technology and their Built-In Intelligent Controller provide the perfect combination of comfort and performance.





Contact us for more information!






September 15, 2015

BMW N54 Walnut Blasting Is Popular!

Years after introducing this as a premium service for all owners of the BMW N54 engine (see full list below), walnut blasting continues to be one of our most popular services with local BMW owners! For this reason, we are re-posting our original “inside story” article on how walnut blasting works, and why it is so important for proper maintenance.

N54 Valve Cleaning : The Inside Story of the Walnut Blasting Technique and Process

For everyone who is interested in what actually goes on during a special intake valve cleaning, here is some more information along with several other detailed photos of the process. Without further ado: the story behind it all.

When BMW introduced the N54B30 powerplant to the United States market in 2007, it was their first production turbocharged engine that utilized direct injection technology. This means that instead of traditional intake manifold fuel injection, the engines injectors are placed literally inside the combustion chamber, next to the spark plug. Direct injection boasts better fuel economy, and has proven to be a revolutionary development for the internal combustion engine. The technology is now found in nearly every new production car!

While pioneering the market with the N54B30, BMW did have their share of growing pains with this new technology. There were several revisions for the high pressure fuel pump, and many other sensors and electronics pertaining to the fuel system had their issues as well. One of the major oversights with this technology development was the intake port and valve carbon buildup.

The N54B30 has a crankcase ventilation system that is internally routed in the cylinder head. If you look down into the intake port, you’ll notice a hole on the top of the port that is used by the CCV for vacuum. The problem now is that oil that makes its way through the CCV will end up in the intake port of the cylinder head – which wouldn’t be an issue if there was an injector in each port cleaning it with fuel. Since the N54 doesn’t have any fuel injectors in the manifold, the oil residue builds up on the intake port and intake valves over time. Newer cars such as the Scion FR-S that are direct injected have a second set of injectors in the manifold to help prevent the issue of buildup that the N54 has.

Fortunately BMW recognized the issue and at the very least they have provided us with a genuine BMW tool that can be used to “blast” the carbon buildup off the port and valves.

When the cleaning of the intake valves became regular maintenance on the N54 engines, we experimented with various ways to properly and effectively clean the carbon buildup. We tried chemical cleaning, simple walnut blasting, scrubbing, etc.. After years of dealing with this issue we’ve come up with what we feel is the most effective and efficient way to get rid of the carbon.

Remove the intake manifold.


Inspect the intake port.

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Rotate the engine so that the valves are closed in the port being worked on, and then fill the port with a carbon solvent.


Once the solvent has had time to penetrate the buildup, we use a variety of picks and brushes to loosen the carbon buildup, and then using the OEM BMW tool, we walnut blast the port until it is clean.


Inspect, and then clean all missed areas.


All clean!


Feel free to contact us with any questions, or to schedule your own service!




September 4, 2015

We are Central Florida’s #1 BMW Service and Repair Shop!

Precision Sport Industries is a BMW specialist shop with a 5,000 square foot facility located in Winter Park, Florida. Here at PSI, we define ourselves by our level of service, maintenance experience, and our ability to fulfill the dreams of every enthusiast that brings their treasured BMW to our facility. We pride ourselves in transforming your ideas into reality, using only the very best parts available and the highest level of skill possible. Regardless of the purpose of your visit to PSI, whether tiny or immense, we are committed to your complete satisfaction. We simply wouldn’t have it any other way, and we feel you should not either.


Our service and diagnostic team has decades of expertise, so it goes without saying that you are in good hands here. In fact, the extensive experience on staff makes us the first choice for any type of work, no matter how complex. Anything from a simple oil change to an intensive street, show, or racing build is just another day in the shop for us. As you can see from some of our previous projects, our commitment to quality and excellence takes priority over any type of margin.


We feature the latest BMW Diagnostic technology including a BMW GT1, Auto Logic and INPA. With these specialized state-of-the-art tools, we can find the root of a problem faster than any shop in the area. We specialize in OEM replacement parts as well, and we guarantee the exact OEM replacement part to keep your BMW showroom new. From E30 to F30 and beyond, we can help you keep your BMW in top shape with access to the best parts, from the world’s leading manufacturers.


With our combined experience of over 30+ years of BMW Repair and Service, we are the #1 choice in Central Florida for dealer alternative BMW Service.

Our service department features these OEM brands:


Contact us with any questions, or feel free to stop in and see us any time during normal business hours!

Precision Sport Industries
828 Cherry St.
Winter Park, FL 32789
Email Us
Visit Our Website

September 1, 2015

BC Racing Suspension for BMW F8x M4 Now Available!

We are proud to announce that the new triple-adjustable coilover system for the BMW F80 M3 + F82 M4 is now in stock and ready to ship! This is the advanced prototype we have been testing for the past year, and it has been fine-tuned to perfection. These are here at PSI today and can be installed or shipped straight to your door!


Contact us for more details.


(407) 617-0372

August 11, 2015

PSI On Facebook

Most of you are well aware of our Facebook page, and hopefully you get the chance to visit often! Facebook now allows people to customize their news feed to prioritize updates from particular friends, groups and pages. To see this new option in action, go to our Facebook page (http://facebook.com/precisionsport), click the Liked button on our page, and then select the See First option.


Presto! Now you will get to see content, photos and updates from us more often. As always, we appreciate your support, and we are glad for the opportunity to serve you.


August 3, 2015

Work Emotion Wheels on a BMW M4

We wanted to share with you a quick photoshoot of this Yas Marina Blue BMW M4 (F82) on WORK Emotion CR 2P (step-rim) wheels. The wheel finish is GT Silver (GTS) Finish with anodized polished lips. The optional center caps are flat type in a black finish. The front center disk is a R-Disk (Semi Concave Face) and the rear center disk is an A-Disk (Deep Concave Face).  Brake clearance is no problem for the standard M4 brake system.  Wheel sizing is a 20×9.5 F & 20×11.0 R, with Michelin Pilot Super Sport tires in 265/30/20 F & 295/30/20 R.
On the M4,  KW Suspension’s Height Adjustable Spring System was installed using factory shocks.  For exterior aerodynamics, AC Schnitzer provided their carbon front spoiler, carbon mirror cover, rear roof spoiler, carbon rear wing, and carbon rear diffuser. Underneath, an AC Schnitzer exhaust system frees up airflow and sound.
Yas Marina Blue BMW M4 (F82)
WORK Emotion CR 2P (Step Rim)
GT Silver (GTS) Finish
20×9.5 w/ 265/30/20
20×11.0 w/ 295/30/20

Note: shown with optional Emotion center caps in Flat Type / Black.

Enjoy the photos, and feel free to contact us with any questions!







August 1, 2015

The Ghost Chameleon – BMW 335is by PSI


Legend tells of a warrior that moved in the shadows, striking at will without warning, only to disappear before the enemy caught even a glimpse. While we here at PSI don’t always believe in legends, what we do believe in are diehard enthusiasts with a true passion for BMW and motorsport, and the friends we make within that category. Perhaps one of the clearest examples of this single-minded focus is the owner of this unforgettable E92 335is. Originating from South Florida, they came to us with a simple goal: to create one of the most unique and purposeful cars of its kind in the country. It needed to be fast and effective on a race track or road course while maintaining a level of visual appeal. Only the very best solutions were to be used, enabling the user to slip in and exact the maximum amount of damage before fading into the distance.

It’s truly refreshing to have conversations with individuals who think these kinds of terms. Perhaps you know one. We discussed ideas, laid out plans, and worked late into the night to ensure this project came together correctly. PSI doesn’t have a reputation of doing things halfway, so when we commit, it’s full speed ahead. Immediately we knew that everything had to begin with the chassis. In motorsport, more time and effort is put into the chassis than virtually anywhere else. Steering, braking and suspension are incredibly crucial to quick lap times – especially the latter two. Power is great to have, but without a way to channel that power to the ground on the track, that energy is often lost or dissipated through loss of traction or excess body movement. Similarly, without reliable stopping ability, unwanted seconds are added with increased braking distances and the inability to turn in properly before hitting the apex.

For the perfect ride height while maintaining good compliance, we installed a set of KW Clubsport coilovers that allow for fine-tuning the critical compression and rebound attributes of a suspension setup. In front of those are a complete high-visibility StopTech 355mm/345mm big brake kit with calipers painted in Ithaca Verde for maximum contrast with the body color and wheels. More on that aspect in a moment. These monster units ensure fade-free speed reduction, lap after lap, while the sturdy SPEC Stage 2 clutch and UUC short shifter enable quick, fluid movement between gears. A gorgeous set of Apex EC-7 18″ wheels wrapped in Nitto NT05s help reduce weight, look fantastic, and grip like a cat being held over a pool.

We wanted maximum chassis stiffening, so a full bolt-in roll bar was sourced from Fall-Line Motorsports, also painted Ithaca Verde, and a snug set of the venerable Recaro Pole Position seats were fastened down, using Macht Schnell floor mounts. For FIA-level restraints, we turned once again to Sabelt, who delivered an amazing 6-point harness to hold the driver in place while engaged in combat. Behind everything, working in concert with the roll bar, is a new PSI Edition alcantara rear seat delete and closeout with custom stamped aluminum panels. While we have not advertised the PSI Edition line much as of yet, a build on this level requires some truly innovative touches, and this one delivers in spades.

To guide the assault, a BMW M Performance alcantara steering wheel with Ithaca Verde stripe was installed, and a P3 Cars boost vent gauge monitors vital signs. Power is delivered in short order by a BMS JB4 for N54, BMW DCI, and a healthy pair of VRSF catless downpipes. Our good friends and neighbors at Active Autowerke, who have teamed up with us on a great many projects in the past, supplied a charge pipe and BOV, their excellent front-mount intercooler and a full stainless exhaust system. The careful combination of all these parts ensures a never-ending surge of building acceleration off the line and out of each corner.

Last but certainly not least, we addressed the exterior. Again, it was decided to go big or go home, so the entire roof was removed and an OEM E92 M3 carbon fiber roof and headliner replaced it. Needless to say, not only does it look amazing, the functionality of a lower center of gravity serves a significant purpose while cornering. Additionally, OEM E92 M3 side mirrors were painted in Ithaca Verde to match the 335is badges, the BMW Performance carbon fiber rear spoiler’s CRT stripe, and the i8 style front grilles. Completing the aggressive motorsport approach is an Arkym carbon fiber front lower spoiler, adding that extra bit of additional downforce.

While the original paint color was black, we had a matte gray wrap applied by Carbon Wraps Orlando, and the effect is mouthwatering when paired up with the black wheels, carbon fiber roof and those unmistakeable Ithaca Verde accent pieces. In the end, we created a machine designed for relentless attack during competition events, and integrated the highest quality parts with ingenuity and creativity. This is not a BMW for the faint-hearted, and while we don’t wish to start a mass panic, perhaps while at your next SCCA or HPDE you may wish to check your surroundings more carefully than usual. A ghostly apparition may suddenly appear, and just like that . . . it will be gone.


Suspension and Brakes
KW Clubsports
Stoptech BBK F/R (355mm/345mm) in Ithaca Verde
Apex EC-7 18″
Nitto NT05s
SPEC Stage 2 clutch
UUC Short Shift Kit
Motorsport Hardware 75mm Studs/ and race nut conversion

Fall Line GTR Roll Bar painted Ithaca Verde
RECARO pole positions
Macht Schnell Floor Mounts and Anti Sub Bar
BMW M Performance alcantara steering wheel with Ithaca stripe
Sabelt 6-point competition harnesses
P3 Cars boost vent gauge
PSI EDITION alcantara rear seat delete and closeout with stamped aluminum panels

BMS JB4 (N54)
VRSF catless downpipes
AA charge pipe and BOV
AA Sport front mount intercooler
AA full stainless exhaust
Custom coding by Mike Benvo @ BPM Sport

OEM E92 M3 carbon fiber roof & headliner
OEM E92 M3 side mrrors painted in Ithaca Verde
Matte gray wrap by Carbon Wraps Orlando
i8 style painted front kidney grilles
Ithaca Verde 335is badges
BMW Performance carbon fiber rear spoiler with CRT stripe
Arkym carbon fiber front splitter














July 31, 2015

Roaring Through Summer 2015


What a year we have had so far! Track events, major builds, a lot of automotive events, and more . . . so we thought we would share two of the larger projects we just finished up. Here are a few teaser shots, enjoy and stay tuned for the rest of the BMW F10 M5 and E92 335is photo feature!





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