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| Quad || 44774 || 5.99 | | Quad || 44774 || 5.99 | ||
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Another quality plug is the Bosch WR7DTC, the "T" refers to the 3 side electrodes. These are pre-gapped copper resistor plugs, and last a long time because of the 3 side electrodes. Availability is limited. | |||
Revision as of 12:01, 15 September 2009
My preference, and biggest bang for the buck is...
BOSCH PLATINUMS, WR7DP good for about another 3 hp and noticable in the seat of the pants. $2.99 each
I haven't tried the following, but Bosch also makes double and 4 prong plugs... up to 5.99 each and ALL their RECOMMENDED Platinum Plugs are GUARANTEED to make a difference or your money back. In this case the WR7DPs.
The 2 and 4 prong EQUIVALENTS for the WR7DPs are #4310 for the Plus 2 and #4477 for the Plus 4.
IAP sells the BOSCH Platinums under the following IAP part numbers:
| Single | 31509 | 2.95 |
| Dual | 31512 | 3.99 |
| Quad | 44774 | 5.99 |
Another quality plug is the Bosch WR7DTC, the "T" refers to the 3 side electrodes. These are pre-gapped copper resistor plugs, and last a long time because of the 3 side electrodes. Availability is limited.