Vehicle Upgrade Guide
BMW M5 F90 Upgrade Guide: Carbon, Exhaust and Intake
Which carbon, exhaust and intake parts suit the BMW M5 F90 and its S63 twin-turbo V8, and the order we would fit them in.
Workshop Notes
Stories from the garage.
On carbon fiber, exhaust and intake: what suits your car, why and how.
Vehicle Upgrade GuideF80 M3 / F82 M4 Build Guide: Carbon, Exhaust and Intake for the S55
A part-by-part guide to the BMW F80 M3 and F82 M4: carbon hood, spoiler and diffuser, downpipe and cat-back exhaust, intake and the charge pipe. Which to fit first, and why.
Carbon FiberCarbon Fiber Hoods: Weight, Heat and How to Choose One
A carbon fiber hood takes weight off the very front of the car, helps vent engine heat, and changes how the car looks. Here is what to check before you buy one.
Intake SystemsWhy Your Turbo BMW's Plastic Charge Pipe Cracks and What Aluminium Fixes
The plastic charge pipe is the part that catches out turbo BMW owners. Here is why it cracks, how a failure shows itself, and what an aluminium replacement is worth on N54, N55, S55, B58 and S58 engines.
Carbon FiberBMW E46 M3 Carbon, Exhaust and Intake Guide
What carbon fiber, exhaust and intake parts do on the BMW E46 M3 and its S54 engine, the order we would fit them in, and how to upgrade the car without hurting its originality.
Carbon FiberGloss vs Matte Carbon Fiber: Which Finish Suits Your Car
Gloss and matte carbon fiber parts share the same weave; the clear-coat does the rest. Here is how each handles light, which paint it pairs with and what care it needs.
Vehicle Upgrade GuideBMW 3 Series (G20/G21) Upgrade Guide: Carbon, Exhaust and Intake for the 330i and M340i
A carbon fiber, exhaust and intake guide for the BMW 3 Series G20 and G21. What each part does on a 330i or M340i, and the order we would fit them.
Vehicle Upgrade GuideBMW M2 (G87) Upgrades: Carbon Fiber, Exhaust and Intake
Carbon fiber body parts, catback and downpipe exhausts and intake kits for the BMW M2 G87, and the order we would fit them in.
Vehicle Upgrade GuideAudi RS3 (8Y) Upgrades: Exhaust, Intake and Carbon Fiber
Cat-back, downpipe, intake and carbon fiber parts for the RS3 (8Y) five-cylinder: what each one changes, and the order we would fit them.
Carbon FiberSplitters, Spoilers, Wings and Diffusers: How Carbon Aero Works
A plain guide to what a front splitter, side skirts, spoiler, wing and rear diffuser each do for downforce, drag and balance, and why the parts are carbon fiber.
Exhaust SystemsTitanium vs Stainless Steel Exhausts: What the Extra Money Buys
Titanium or stainless steel for your exhaust? We compare weight, heat color, sound, corrosion resistance and price so you can pick the right material for how you drive.
Carbon FiberCaring for Carbon Fiber: How to Keep Your Parts Looking New
What ages a carbon fiber part is the clear coat, not the weave. How to wash it, when ceramic coating and PPF are worth it, and the habits that ruin a good part.