Flowtech x2. The mufflers aren't made from very thick steel like Flowmaster, Magnaflow, etc., so they wont last as long, however at less than $25 you can afford to buy them more often.

More than tread lightly. Leave it like you were never there, nor anyone else.
'90 X-cab 4.88's 33 BFG AT's, rr ARB, Headers, Ignition upgrade, cold air induction.
'91 X-cab 5.29's 315's BFG MT's, rr ARB, custom bumper and flatbed