Our Engineers' Favorite Products They Have Designed
From the minds that engineered them to the machines they personally drive, these are our top product picks, straight from our enthusiast engineers! As die-hard automotive lovers themselves, our team pours their passion and expertise into every design. If it's not good enough for our own vehicles, you won't find it here. Get a glimpse into the parts we trust and install on our personal rides and we truly are enthusiasts built!
We Truly Are Enthusiasts Built!
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E46 M3 Street Flow Rear Diffuser
Add-on diffuser to deliver a true motorsport look to your M3. Fastens seamlessly to the bottom of the rear bumper giving a platform to show off your exhaust and complete the rear end of the E46.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Voted In By Derek & Josh
Voted In By Derek & Josh
Brand:
ES#:
4714491
Mfg#:
047616LA01KT
E92 M3 Street Flow Rear Diffuser
Add-on diffuser to deliver a true motorsport look to your M3. Fastens seamlessly to the bottom of the rear bumper giving a platform to show off your exhaust and complete the rear end of the E92.
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Voted In By Derek & Josh
Voted In By Derek & Josh
Brand:
ES#:
4743323
Mfg#:
047898LA01KT
E30 Heavy Duty Dual Mount Differential Cover
The strongest differential cover on the market! Featuring an integral secondary mount, 6061-T6 billet aluminum construction, and optimized cooling!
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Voted In By Collin, Joe, Marc, Mike, Ricardo, Tali
Voted In By Collin, Joe, Marc, Mike, Ricardo, Tali
Brand:
ES#:
4883458
Mfg#:
025993LA
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Availability:
Ships in 3 Business Days
Ships in 3 Business Days
E36 Reinforced Billet Differential Cover Kit - 188mm
Single piece 6061 construction, optimized cooling, provisions for temp sensor and external cooler with removable air duct.
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Brand:
ES#:
4733320
Mfg#:
049424LA
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Availability:
Ships in 3 Business Days
Ships in 3 Business Days
E46 M3 Reinforced Billet Differential Cover Kit - 210/215mm
Single piece 6061 construction, optimized cooling, provisions for temp sensor and external cooler!
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Voted In By Collin, Joe, Marc, Mike, Ricardo, Tali, Eric, Brent, Gary
Voted In By Collin, Joe, Marc, Mike, Ricardo, Tali, Eric, Brent, Gary
Brand:
ES#:
4818925
Mfg#:
049409LA
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Availability:
Ships on Sep 23, 2026
Ships on Sep 23, 2026
E9x M3 Upgraded Billet Differential Cover
Single piece 6061 construction, optimized cooling, provisions for temp sensor and external cooler with removable air duct.
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Voted In By Collin, Joe, Marc, Mike, Ricardo, Tali, Eric, Brent, Gary
Voted In By Collin, Joe, Marc, Mike, Ricardo, Tali, Eric, Brent, Gary
Brand:
ES#:
4830512
Mfg#:
049395LA
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Availability:
Ships in 3 Business Days
Ships in 3 Business Days
F Chassis N55/B58 Differential Brace
Reduce wheel hop, extend the life of your input bearing, and add stability to your chassis with the Turner F Chassis Diff Brace!
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Voted In By Derek & Mike
Voted In By Derek & Mike
Brand:
ES#:
4659603
Mfg#:
047282LA04KT
E53 X5 Ratcheting Rear Locker Kit - Medium Case
DIY-friendly, Ratcheting "Lunchbox" style locker to transform your E53 into a fully capable off-road weapon!
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Voted In By Joe & Mike
Voted In By Joe & Mike
Brand:
ES#:
4733183
Mfg#:
046894LA01KT
E53 Winch Mount Kit
Upgrade from your factory tow points and add a discretely mounted winch to the front of your X5! Upgraded recovery with an awesome aesthetic!
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Featured in 'Built by Mike' Overland YouTube build series
Voted In By Brent & Tom
Featured in 'Built by Mike' Overland YouTube build series
Voted In By Brent & Tom
Brand:
ES#:
4690608
Mfg#:
047398LA01AKT
E53 Rock Slider Set
Replace your flimsy plastic rocker panels with a rugged steel casing to protect your underbody and have confidence in your off-roading capabilities!
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Featured in the "BUILT BY MIKE" YouTube Series
Voted In By Tali & Tom
Featured in the "BUILT BY MIKE" YouTube Series
Voted In By Tali & Tom
Brand:
ES#:
4707738
Mfg#:
048520LA01KT
E70 Front Light Mount
Expand lighting output and overlanding capability with this stout mounting system—a direct fit and aesthetic upgrade for your offroad E70 build!
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Voted In By Brent
Voted In By Brent
Brand:
ES#:
4766486
Mfg#:
022234LA04KT
E53 X5 Modular Overland Roof Rack
A blend of functionality and rugged aesthetics. Designed for a direct fit specifically for your E53 X5.
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Voted In By AJ, Byran, Derek, Gary, Mike, Tom
Voted In By AJ, Byran, Derek, Gary, Mike, Tom
Brand:
ES#:
4698882
Mfg#:
022528LA01KT
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Availability:
Ships on Nov 3, 2026
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Ships on Nov 3, 2026
E70 X5 Modular Overland Roof Rack
A blend of functionality and rugged aesthetics. Designed for a direct fit specifically for your E70 X5.
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Voted In By AJ, Byran, Derek, Gary, Mike, Tom
Voted In By AJ, Byran, Derek, Gary, Mike, Tom
Brand:
ES#:
4766274
Mfg#:
022514LAKT
E30 Chassis Mount Skid Plate
Robust skid plate with multi-piece structural reinforcements. Compatible with M20, and M5x/S5x swapped cars that have the low hanging M50 swap oil pan!
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Voted In By Derek & Tali
Voted In By Derek & Tali
Brand:
ES#:
4686122
Mfg#:
048949LA03KT
Turner Motorsport Skid Plate - Wrinkle Black Powder Coated Finish - F10 M5/F12 M6
Protect your vehicle's fragile oil pan and under carriage with this 1/8” (3.175mm) thick aluminum skid plate.
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Voted In By AJ
Voted In By AJ
Brand:
ES#:
4620127
Mfg#:
047639LA01-02
Turner Motorsport Skid Plate - Raw Finish - F10 M5/F12 M6
Protect your vehicle's fragile oil pan and under carriage with this 1/8” (3.175mm) thick aluminum skid plate.
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Voted In By AJ
Voted In By AJ
Brand:
ES#:
4620126
Mfg#:
047639LA01-01
S65/S85 Upgraded Throttle Body Actuator Gear Set
Eliminate throttle actuator failures for good with upgraded Teflon-reinforced gears, designed for maximum durability and reduced friction.
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Voted In By Gary & Tyler
Voted In By Gary & Tyler
Brand:
ES#:
4876024
Mfg#:
043419LA01KT
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Availability:
Ships on Nov 3, 2026
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Ships on Nov 3, 2026
N52/N54/N55/S55 Crank Seal Guard
You can't put a price on piece of mind. A simple bolt on solution to keep your engine safe from catastrophic failure.
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Voted In By Bryan
Voted In By Bryan
Brand:
ES#:
4674312
Mfg#:
049453LA01-02
M57 Upgraded Silicone PCV Hose
The PCV heater hose fails in one spot, the actual accordion portion. Replace the weak link in your PCV hose with our silicone upgrade!
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Voted In By Tali
Voted In By Tali
Brand:
ES#:
4876952
Mfg#:
056926LA01
E36 M3 Performance Valved Axle-Back Exhaust
Lightweight performance exhaust for your E36, featuring a 3.0" valved muffler and controller to change the sound with the click of a button.
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Voted In By Brent & Marc
Voted In By Brent & Marc
Brand:
ES#:
4715979
Mfg#:
023494LA01KT
E46 325/330 Performance Valved Cat-Back Exhaust
Lightweight performance exhaust for your E46, featuring a valved muffler and controller to change the sound with the click of a button.
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Voted In By Bryan
Voted In By Bryan
Brand:
ES#:
4659317
Mfg#:
023536LA02KT
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Availability:
Ships on Aug 3, 2026
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Ships on Aug 3, 2026
E46 M3 Valved Performance Catback Exhaust
As close to perfection as you can get. Lightweight, free-flowing valved exhaust with valve controller for a versatile sound experience.
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Voted In By Derek & Josh
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Voted In By Derek & Josh
Brand:
ES#:
4708083
Mfg#:
023410LA09
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Availability:
In Stock
In Stock
E90 E92 M3 Turner Motorsport Titanium Valved Axle Back Exhaust - Brushed Tips
Your S65 will sound better than all the rest! The titanium construction gives an ultra lightweight form and boasts an exotic exhaust note with valves to change on the fly! The Valved Axle-back exhaust allows you to keep your factory secondary cats!
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Voted In By Bryan
Voted In By Bryan
Brand:
ES#:
4620762
Mfg#:
013888LA01-02KT1
Z3M Performance Axle-Back Exhaust
Get ready for an actioned packed exhaust experience loaded with aggressive sound, free-flow, and an extreme weight reduction!
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Voted In By Tali
Voted In By Tali
Brand:
ES#:
4781488
Mfg#:
050957LA
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Availability:
In Stock
In Stock
N20/N52/N54 Heavy Duty Aluminum Expansion Tank Kit
As expansion tanks age, they are prone to cracking or even exploding. Replace your factory plastic coolant reservoir with a Turner Heavy Duty aluminum tank for durability and piece of mind!
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Voted In By Bryan & Eric
Voted In By Bryan & Eric
Brand:
ES#:
4635669
Mfg#:
008378LA02
Turner Triple Baffled Power Steering Reservoir - Angled Mount
Eliminate the grimy, leaky, factory BMW power steering expansion tank with a beautiful billet aluminum reservoir.
Upgraded for thermal capacity, performance and extended rack life!
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Voted In By Brent, Bryan, Gary, Mike, Tom
Voted In By Brent, Bryan, Gary, Mike, Tom
Brand:
ES#:
4616134
Mfg#:
004898LA01KT
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Availability:
Ships on Aug 10, 2026
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Ships on Aug 10, 2026
Turner Motorsport Billet X-Brace Reinforcement Kit - E36
Transform the handling in your E36! The Turner X-Brace unifies your chassis and makes it a handling monster on the road and track.
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Voted In By Eric & Tyler
Voted In By Eric & Tyler
Brand:
ES#:
4424909
Mfg#:
016865LA01KT
E36 Performance Carbon Fiber Intake Systems
Keep your intake temps low, air flow optimized and your engine bay looking top-tier. Engineered, designed, and tested by a team of E36 enthusiasts at Turner Motorsport.
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Voted In By Marc & Tyler
Voted In By Marc & Tyler
Brand:
ES#:
4736808
Mfg#:
043602LA11
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Availability:
Ships on Nov 3, 2026
Ships on Nov 3, 2026
Build Your Own CSL Intake Plenum - SMG & 6MT
Get the highly coveted CSL experience with your S54! Roaring induction noise, aesthetics and increased performance are just the tip of the iceberg when installing this legendary intake.
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Voted In By Bryan, Collin, Gary, Joe, Mike, Ricardo
Voted In By Bryan, Collin, Gary, Joe, Mike, Ricardo
Brand:
ES#:
4668335
Mfg#:
003313TMS01
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Availability:
Ships on Jul 7, 2026
Ships on Jul 7, 2026
Turner Motorsport N52 Intake
The N52 engine never sounded this good.
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Voted In By Bryan
Voted In By Bryan
Brand:
ES#:
3648431
Mfg#:
025520TMS05
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Availability:
Ships on Jun 26, 2026
Ships on Jun 26, 2026