Mod bug is nipping at my arse again. I am thinking of getting some UEL headers, but I do have a few questions about them (general)
1) I have read that as I am looking at UEL they do not 'require' tuning to be installed, but to really take advantage of possible gains I would need tuning. Thoughts on this?
2) What kind of gains and/or losses should I expect when still running stock injectors and VF52 turbo?
3) Sound. How much will UEL headers change the sound over the stock pig-iron cast crap? I know UEL should retain the rumble, but will the pitch change? I am thinking about getting the Borla set (real, not repro/knock-off) which boasts a change in sound, though I am not sure if this is just jargen for their entire system, or if they mean the headers alone will make a "distinctive BORLA Sound of Power respected by motoring enthusiasts everywhere". The only headers I have heard when I knew they were installed are the EL ones Brandon has, and I am unable to find a comparison sound clip for just UEL headers....only stock vs complete system change.