Hello, well I have had my 2003 G35 Coupe for some time now. Earlier this year I took it to Mosport International Speedway and loved it but wanted more. So I added new wheels, G-Force Flame Threads, Custom Stainless Exhaust (nice new sound, not too loud, but a refined rumble and more performance), Performance Plugs Iridia(sp?), K&N Cold Air intake, Sprint Booster (eliminates throttle lag, very cool) and finally an UpRev tuning, with three maps (Track, Factory, Wife ). The car dyno's at 243 HP at the wheels, the tune added almost 20HP.

Anyways I love the car, and am looking to get some more HP out of it and make it more stable on the track. So any suggestions at all feel free to pass them along.

Thank you!

Post pics or the car doesn't exist!

If you can tune again, you will see decent gains in HFC (High flow Cats) and headers but only if you tune.

Good numbers on a nearly stock car.

Since you've got the sprint booster I assume your 5at?

Welcome to the forum, some of us are *** holes, but all in good fun!

Lots of new Acronyms for me to learn, what is 5AT? I know what a ******! On the HFC and Headers what kind of performance gain might you expect, 20HP? What are you driving?

Colin

Let's hear it for the old guys!! Welcome and read through this thread for some new ideas:

https://g35driver.com/forums/g35-cou...pe-thread.html

5AT = 5 speed auto tranny

Me and blue dream both drive sedans. Because we're more grown up then you! haha

Headers and HFCs maybe around 15-20. Depends what you get though. I have heard good thing about Megan headers and then there is the obvious brands for things like stillen and HKS etc. Read reviews and stuff on here and see who got the best gains from what. A lot of guys on here have had the cars dyno'd many times before and after mods.

welcome to the boards

welcome to the forum

Welcome!