Quote:
Originally Posted by steve99
+1 on above post
Intakes = very little power increase on a non-boosted car over just a drop in filter
Changing intakes can upset MAF (mass air flow) sensor scaling resulting in poor performance ( hesitation roughness) unless you re-tune for the aftermarket intake. Any performance increase with intakes is generally high rpm, these cars need midrange.
Exhausts.
Catbacks for sound only -little or no power increase
If you do get a catback get a quiet one as if you change headers or install high flow main cat later on it going to get loud
Change headers preferably catless for power increase
For maximum benefit from headers you need to tune for them
Rough power increase over stock
Headers alone no tune maybe 5hp - with tune maybe 10-15 but you get more midrange power/torque which is what you need
Intake with maybe 4 or 5hp max
You would probably get 2 or 3 hp with drop in filter without problems of rescaling MAF
Tune on completely stock car maybe 10hp - but you get more midrange power/torque
Tune for E85 fuel + headers + tune+ drop in filter maybe 25-30hp that about it on an NA car with bolt-on mods and tune (talking wheel HP)
If you want more HP than that plan on boost from start
Remember if you change stuff especially headers and intakes you will likely run into warantee issues should you develop and engine issues.
With just a tune that you can flash back to stock may be a better option if you want to minimize chance of warantee issues
|
I don't want to void my warranty. Which catback would you recommend that is quiet at low rpms and roars at high rpms while maintaining the boxer rumble?
Sent from my SGH-T989 using Tapatalk