Greetings,
I am new and but have been reading for the last month and would like some advice on exhaust.
Currently I have a 98 and am considering headders (already have sitting at home) and cat bypass pipes with a stock muffler.
My goals are to have a throater sound under power with more volume but not to drastically affect the sound at cruse. Slight changes dont bother me (other car is a completely strait piped 135i) but as this is one of my primary drivers, I want to keep it mild.
Also, any other advised modifications?
Tune wise I have been looking around and havent seen much for the 2.5L cars, just fabspeed and Pedro's tune. I am heavily leaning toward the latter unless someone car give me a reason why not to.
Finally, are there any forseeable issues with running my car catless with out a tune (other than the cel being illuminated on the dash)?
Thanks for all the help and reading!
PPW