SuperCoupe400 Posted November 20, 2006 Share Posted November 20, 2006 I'm about to do a tune-up including new wires. My import parts supplier wants $8.56 ea for the stock plugs (Laser Platinum). But the Bosh Platinums are going for only $2.50ea. I have no problem paying the $8.56 for the OEMs if that's the best way to go. But I just wanted to get some input from you guys first. What are some of you using? Any performance or longevity issues with non OEM plugs? Thanks. Quote Link to comment Share on other sites More sharing options...
dcfish Posted November 20, 2006 Share Posted November 20, 2006 I'm about to do a tune-up including new wires. My import parts supplier wants $8.56 ea for the stock plugs (Laser Platinum). But the Bosh Platinums are going for only $2.50ea. I have no problem paying the $8.56 for the OEMs if that's the best way to go. But I just wanted to get some input from you guys first. What are some of you using? Any performance or longevity issues with non OEM plugs? Thanks. Stay with OEM plugs, These motors are very picky about the plugs. It's worth the xtra $ ;) Quote Link to comment Share on other sites More sharing options...
SuperCoupe400 Posted November 20, 2006 Author Share Posted November 20, 2006 I'm about to do a tune-up including new wires. My import parts supplier wants $8.56 ea for the stock plugs (Laser Platinum). But the Bosh Platinums are going for only $2.50ea. I have no problem paying the $8.56 for the OEMs if that's the best way to go. But I just wanted to get some input from you guys first. What are some of you using? Any performance or longevity issues with non OEM plugs? Thanks. Stay with OEM plugs, These motors are very picky about the plugs. It's worth the xtra $ ;) Will do. Just wanted to know I wasn't tossing $$ out the window with an unnesesary expense. Quote Link to comment Share on other sites More sharing options...
SCdriver Posted November 21, 2006 Share Posted November 21, 2006 I use iridium spark plugs. They should be good for about 100,000 mi and are about $6-8/plug. Try ebay or Yahoo and make sure you get the proper gapping. My brand are NGK but Denso plugs are fine although a bit more expensive. They have run fine for the last two years. Quote Link to comment Share on other sites More sharing options...
GaDawg Posted November 22, 2006 Share Posted November 22, 2006 I'm about to do a tune-up including new wires. My import parts supplier wants $8.56 ea for the stock plugs (Laser Platinum). But the Bosh Platinums are going for only $2.50ea. I have no problem paying the $8.56 for the OEMs if that's the best way to go. But I just wanted to get some input from you guys first. What are some of you using? Any performance or longevity issues with non OEM plugs? Thanks. I replaced my wires with Bosch wires and platinum plugs and it kicks...you do not need to buy Iridium plugs and pay $8+$ each...that's bs. Unless you're racing and every last potential thousandths of a second counts don't bother with the ultra high-end stuff...its a waste of money without the appropriate returns. Just my 2 cents, have a nut. Quote Link to comment Share on other sites More sharing options...
lexus082 Posted November 22, 2006 Share Posted November 22, 2006 I would go with the stock oem plugs also. They are supposed to last 100,000 miles. When I first bought my car I put bosch p-4 but after reading several posts on these forums I changed mine out with Oem Lexus plugs. I have heard of people having problems with aftermarket plugs and wires. Quote Link to comment Share on other sites More sharing options...
anthonyiez Posted November 24, 2006 Share Posted November 24, 2006 there are very few cars out there i'd put bosch platinums in. as good as a company bosch is, i'm not a fan of their plugs. Quote Link to comment Share on other sites More sharing options...
BrabusCClass Posted December 6, 2006 Share Posted December 6, 2006 there are very few cars out there i'd put bosch platinums in. as good as a company bosch is, i'm not a fan of their plugs. I dont use bosch plugs anymore because something happened before, i forget what. I use NGK now and am happy with it. For my SC300 Im going to get NGK plug wires #TE120 $61.87 NGK IX Iridium #BKR5EIX-11 $6.95 You can order it at: www.ngk.com which I think links out to www.sparkplugs.com I normally get things at www.importrp.com but didnt see it listed so I emailed them. Lets see who is cheaper and Im going to order from them. Hopefully Ill get some better gas mileage a bit more responsive power. :) Quote Link to comment Share on other sites More sharing options...
bartkat Posted December 6, 2006 Share Posted December 6, 2006 It's a Lexus, use the good Japanese stuff. Quote Link to comment Share on other sites More sharing options...
kelkelio Posted December 6, 2006 Share Posted December 6, 2006 What is the proper spark plug gap for a 93 SC 400? Quote Link to comment Share on other sites More sharing options...
BrabusCClass Posted December 19, 2006 Share Posted December 19, 2006 What is the proper spark plug gap for a 93 SC 400? I think its .044 Quote Link to comment Share on other sites More sharing options...
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