Street Racing Syndicate Cheats

Get more then one video of a girlfriend
Ante up and win a few new events to unlock more videos of your selected girlfriend.

Wagering
When you place wagers before each race, the amount of each wager stays the same throughout all three races, no matter what the wager amount says between the races. For example, if the beginning wager is $2,000 then it will remain that way throughout the entire series for that racer.

Easy money
Go to the desert sanctioned race and do level one. Select the last wager on the screen, then accept it, and race. Do this for every race and you will get at least $12,000 easily. Keep repeating this to build up a large amount of money.

Go to the street challenge (Boulevard Sprint). If you race there, you will have a 90% chance of winning.

Get a car that at least has 330 hp (after all the upgrades), then buy the Venom 2000 nitrous kit. Enter the Boulevard Sprint in the street challenge menu. Keep entering this race repeatedly, but make sure you always have at least a half tank of nitrous when you start.

Body kits
Although in real life, body kits were originally designed for aero-dynamics (to reduce wind resistance, thus making your car move faster), this is not true in the game. The body kits weigh down the car more, thus reducing your top speed. This can be as little as 10 mph to as much as a 25 mph loss, which can obviously be the difference between walking away with someone's ride or losing yours. Do not put body kits on your cars. They do not add to respect, will slow you down, and makes your car cost more to repair.

Spoilers
When you buy a new spoiler, check your hp. All add-on spoilers loose some hp, but some lose less than others. Your stock is usually the best.

Unlock Cars
Subaru STi - Win the Street Revolution Crew Meet in street mode
Mazda RX-7 Bathurst - Have all first place finishes in the Los Angeles Iron Man challenge in arcade mode
Mazda RX-8 Mazdaspeed - Have all first place finishes in the Miami Iron Man challenge in arcade mode
Mitsubishi Evo VII GSR - Win the Los Angeles checkpoint mission in arcade mode
Nissan Skyline V-Spec II Nur - Win all three Nitro Xtreme Crew Meet series in street mode
Toyota Trueno Apex - Finish first place in in the Philadelphia Iron Man challenge in arcade mode