Exhaust Sizing Question
05-03-2006, 06:21 AM
#1
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I've read the 101, i've also searched and read a topic where you guys b****ed alot.
One question. I have a 2inch catback. I got it because i didn't want to loose too much torque, but have now realised that I could have probably got a 2.5inch.
Do you think i've limited myself here? Are there any HP gains for going to 2.5" ? Is the 2inch a problem if i get headers and such?
One question. I have a 2inch catback. I got it because i didn't want to loose too much torque, but have now realised that I could have probably got a 2.5inch.
Do you think i've limited myself here? Are there any HP gains for going to 2.5" ? Is the 2inch a problem if i get headers and such?
05-03-2006, 11:10 PM
#2
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the size depends on what you want to do with the car. i feel 2 inch is a little small. i woulndt suggest going any smaller than 2.25 sure you may lose alittle torgue with bigger piping but its not that big of a deal. just mod. more to getback lost torque. cool.gif
05-03-2006, 11:17 PM
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Vehicle: 1997 Hyundai Fx Coupe
Up until a few years ago there were tuning shops around here that were even boosting Lantras & Coupes with decent results on 2" systems so I'm sure you'll be right with your 2" setup, especially if you stay naturally aspirated.
Mine is a 2.25" mandrel-bent affair & performs well enough for what I want but I have never really had a stock setup to properly compare torque differences with. Other 2.0L Coupes & Lantras I've driven have all been mildly modified too.
If you want to go bigger, some guys on here have gone with 2.5" press-bent exhausts & they reckon they're probably as big as you'd want to go. I think that if you plan to get extractors & a hi-flow cat, a 2.5" exhaust will definitely give you more top-end power but your car will be a pig to drive in daily traffic.
Mine is a 2.25" mandrel-bent affair & performs well enough for what I want but I have never really had a stock setup to properly compare torque differences with. Other 2.0L Coupes & Lantras I've driven have all been mildly modified too.
If you want to go bigger, some guys on here have gone with 2.5" press-bent exhausts & they reckon they're probably as big as you'd want to go. I think that if you plan to get extractors & a hi-flow cat, a 2.5" exhaust will definitely give you more top-end power but your car will be a pig to drive in daily traffic.