Exhaust - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

justinc · 05-12-2001, 10:41 PM

If i do a cat back exhaust system will i get better fuel economy ? How much better?

**West** · 05-13-2001, 08:36 PM

Cat Backs dont help Gas Milage. Although they dont hurt your Gas Milage by much. Maybe the MAX of 1 mpg.

*drifterx* · 05-30-2001, 09:14 AM

no silly... u will have worst fuel economy.. think this way... u can put out more fumes fast.. that means u can burn more gas so that means u have more power (well this is the simple way of putting it)

05-12-2001, 10:41 PM	#1
justinc Leaky Injector Join Date: May 2001 Posts: 119 Trader Rating: (0) Feedback Score: 0 reviews	If i do a cat back exhaust system will i get better fuel economy ? How much better?

05-13-2001, 08:36 PM	#2
West OMNOMNOMNOM Join Date: Dec 2000 Location: Denver, CO Age: 44 Posts: 6,456 Trader Rating: (0) Rides Gallery: West Feedback Score: 0 reviews	Cat Backs dont help Gas Milage. Although they dont hurt your Gas Milage by much. Maybe the MAX of 1 mpg.

05-30-2001, 09:14 AM	#3
drifterx Premium Member Join Date: May 2001 Location: boston, ma Age: 44 Posts: 1,533 Trader Rating: (0) Feedback Score: 0 reviews	no silly... u will have worst fuel economy.. think this way... u can put out more fumes fast.. that means u can burn more gas so that means u have more power (well this is the simple way of putting it)