Performance mods!

[teshunterr]

I recently got my hands on an '07 IS250, and want to give it a bit more punch without spending too much money. Any recommendations for some cheaper ways to increase engine output?? I'm not looking for massive gains, just somewhere around 25-50HP more.

Thanks!

[RX400h]

Quote

Congratulations on your new 2007 Lexus IS250! It’s always exciting to explore ways to enhance your car’s performance. While the IS250 isn’t a powerhouse out of the box, there are some cost-effective modifications you can consider to give it a bit more oomph. Let’s dive into some options:

1. Bolt-On Modifications:

   • Intake: Upgrading your air intake system can improve airflow to the engine, resulting in a modest power increase. Look for a high-quality aftermarket intake that fits your budget.
   • Exhaust: A less restrictive exhaust system can help the engine breathe better and potentially add a few horsepower. Consider a cat-back exhaust system or even just a performance muffler.
   • Headers: Upgrading to performance headers can improve exhaust flow and contribute to additional power gains.

2. Supercharging or Turbocharging:

   • While these options may not be dirt cheap, they can provide significant power increases. Look for supercharger or turbocharger kits specifically designed for the IS250. Keep in mind that professional installation is crucial for reliability.

3. Nitrous Oxide (NOS):

   • Nitrous injection is a quick way to add temporary horsepower. It’s relatively affordable, but you’ll need to refill the nitrous bottle periodically. Be cautious and follow safety guidelines when using NOS.

4. Weight Reduction:

   • Improving your power-to-weight ratio can make your car feel more responsive. Consider shedding unnecessary weight by:
     • Using lighter wheels and tires.
     • Removing the spare tire and jack (if you’re okay with that).
     • Opting for a smaller, lightweight battery.

5. Engine Swap:

   • If you’re open to more involved modifications, consider swapping in a different engine. The IS250 shares its platform with the IS350, so an engine swap could give you the desired power boost. However, this option requires significant time, effort, and expertise.

Since you're in CA, make sure that what you do is smog legal.