Toyota GR Yaris (GXPA16) +160 cv claim: G16E-GTS three-cylinder

Toyota GR Yaris: mechanical breakdown

Caption claims 160 cv extra

Uploader's caption, in Portuguese: +160 cv on the GR Yaris, described as a whole extra engine. It names no parts and no events. For scale, the factory rating of the 1.6-litre G16E-GTS is 257 hp, so the claim is a gain of well over half again on stock output.

Why the inline-three sounds off-beat

Firing interval is the whole story. An inline-three has a cylinder firing every 240 degrees of crank rotation, so the pulses arrive evenly spaced but with long gaps compared with a four-cylinder, which fires every 180. That gives the G16E-GTS its uneven thrum at 1618 cc. Over the top of it sit the turbo and wastegate noises, which get louder with an aftermarket intake or downpipe because less of the pulse is muffled before it reaches the air. The single turbocharger works on those wide, separated exhaust pulses rather than on a smoothed stream.

Remap first, then cooling and exhaust

Stock is 257 hp and 360 Nm, and the cheapest route up is an ECU remap. On the stock turbo it adds large power and torque, but engine stress rises and the warranty may not survive it. Heat is the next limit: the car loses power to heat soak on track in hot conditions, so owners fit an upgraded intercooler for lower intake temperatures and steadier output. An oversized core costs response through added turbo lag. A downpipe and exhaust come last. They make the car louder and allow higher-boost tunes, and the price is drone and legality problems with noise and emissions.