Tom

There has been a ton of discussion on this site regarding cross-drilled rotors (pros and cons) but not too much about the grooved rotors. If you do a search you will find a lot of threads. Some people think they are simply not worth the money, others appreciate the better wet road, cooling and reduced unsprung weight benefits offset by the additional cost.

Both the grooved and cross-drilled rotors do add just a little increase in sound when braking.

One benefit not so obvious to both is being able to see visually at a glance the remaining thickness of the rotors whether by the remaining groove left or the holes.

Stainless steel lines were created for off-road use. They have found their way to street applications over the years. They do offer a solid brake pedal feel but so should new factory replacement lines. The stainless steel lines offer high rigidity in ultra demanding competitive racing applications. Interestingly, Porsche uses rubber-coated lines on their off-road vehicles.

Stainless steel lines do have one not so good quality that is they accumulate road dirt which causes early and fast wear, depending on the environment of application. The factory lines are rubber coated for a reason: Keep moisture and dirt away and to also prevent ice from forming around them.

If I were running Stainless steel lines I would carefully inspect and check them frequently for wear and abrasion.

Hope this helps.

Haasman

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'03 E320 Wagon-Sold
'95 E320 Wagon-Went to Ex
'93 190E 2.6-Wrecked
'91 300E-Went to Ex
'65 911 Coupe (#302580)