does stillen intakes make your car slower?
Thread Starter
Registered User
Joined: Jun 2008
Posts: 1
Likes: 0
does stillen intakes make your car slower?
i have stillen intakes and the engine sounds louder, but acceleration seems slower than the stock intakes. is it just me or does the stillens make the car go slower? who has the 411 on this?
Premier Member
Joined: Feb 2007
Posts: 3,478
Likes: 1
From: So. Cal
I dont think it will make you slower per say, but it won't make you faster either. Possibly after your car gets used to it it might make something positive but you would need to try to dyno stock and dyno on another day with conditions being as similar as possible.
Now with other mods this intake could hurt you as it did in my dyno testing but again, I don't know how reliable those #'s were because we never went on a drive.
Now with other mods this intake could hurt you as it did in my dyno testing but again, I don't know how reliable those #'s were because we never went on a drive.
I'm running Stillen long tube intakes and cat-back exhaust. The air/fuel mixture is quite a bit richer now and the power output is increased a bit more above 3 grand, a bit less below.
Without modding the ECU to take advantage of the increased flowthrough, I don't think it's all that worthwhile to spend close to 2 grand on the parts.
I have an appt with Tadashi at Technosquare to get the a/f ratio right and let him do his performance magic. It's pretty clear from dyno results after the chip work that we'll be good for at least 40+ RWHP increase, and the upgraded intake/exhaust will then play a larger factor in boosting power.
Another way to say all that is the stock intake/exhaust is pretty damn good
Without modding the ECU to take advantage of the increased flowthrough, I don't think it's all that worthwhile to spend close to 2 grand on the parts.
I have an appt with Tadashi at Technosquare to get the a/f ratio right and let him do his performance magic. It's pretty clear from dyno results after the chip work that we'll be good for at least 40+ RWHP increase, and the upgraded intake/exhaust will then play a larger factor in boosting power.
Another way to say all that is the stock intake/exhaust is pretty damn good
I'm running Stillen long tube intakes and cat-back exhaust. The air/fuel mixture is quite a bit richer now and the power output is increased a bit more above 3 grand, a bit less below.
Without modding the ECU to take advantage of the increased flowthrough, I don't think it's all that worthwhile to spend close to 2 grand on the parts.
I have an appt with Tadashi at Technosquare to get the a/f ratio right and let him do his performance magic. It's pretty clear from dyno results after the chip work that we'll be good for at least 40+ RWHP increase, and the upgraded intake/exhaust will then play a larger factor in boosting power.
Another way to say all that is the stock intake/exhaust is pretty damn good
Without modding the ECU to take advantage of the increased flowthrough, I don't think it's all that worthwhile to spend close to 2 grand on the parts.
I have an appt with Tadashi at Technosquare to get the a/f ratio right and let him do his performance magic. It's pretty clear from dyno results after the chip work that we'll be good for at least 40+ RWHP increase, and the upgraded intake/exhaust will then play a larger factor in boosting power.
Another way to say all that is the stock intake/exhaust is pretty damn good
Last edited by Buddy Revell; Aug 2, 2008 at 07:13 PM.
I think you guys are believing the estimated gains too much. When I had my 04 Cobra which was naturally supercharged, then youd expect 30-40hp from an intake and exhaust change. On an na import car, sorry not gonna happend
Even with a tune
Even with a tune
Trending Topics
Yeah, there's only so much you can gain on a naturally-aspirated car without internal mods like different cams, cylinder head porting & polishing, higher compression pistons, etc. Bolt-ons and an ECU reflash make a far bigger difference on turbocharged cars than n/a cars like ours.
Yeah, there's only so much you can gain on a naturally-aspirated car without internal mods like different cams, cylinder head porting & polishing, higher compression pistons, etc. Bolt-ons and an ECU reflash make a far bigger difference on turbocharged cars than n/a cars like ours.
Haha, but I guess if people are happy with their mods and their driving experience because of those mods, it's ok to rely on the ol' butt dyno. As long as they don't start going around claiming specific horsepower gains and swear by them as fact, that is.