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MMC Racing · 03-07-2010, 05:42 PM

This is my current decision tree:

Same price, same performance (within 3-5%) - GTM
Same price, GTM kit out performs - GTM
Same price, Stillen kit outperforms by 5-10% - tossup
Same price, Stillen kit outperforms by >10% - Stillen
GTM kit costs more, Stillen kit outperforms by >5% - Stillen
GTM kit costs more, Stillen kit similar or underperforms - GTM
Stillen kit costs more, GTM kit performs similar or within 5% - GTM
Stillen costs more, GTM kit outperforms - GTM

Comparing performance is not easy, so that will be somewhat subjective. I'll probably compare dyno graphs and boost level. Also, with more boost a pulley change away, I'll work in some value of upgradability into the total cost of ownership over the life of the kit.

03-07-2010, 05:42 PM	#42 (permalink)
MMC Racing Track Member Join Date: Jun 2009 Location: San Diego Posts: 661 Drives: 2015 GT-R Rep Power: 17	This is my current decision tree: Same price, same performance (within 3-5%) - GTM Same price, GTM kit out performs - GTM Same price, Stillen kit outperforms by 5-10% - tossup Same price, Stillen kit outperforms by >10% - Stillen GTM kit costs more, Stillen kit outperforms by >5% - Stillen GTM kit costs more, Stillen kit similar or underperforms - GTM Stillen kit costs more, GTM kit performs similar or within 5% - GTM Stillen costs more, GTM kit outperforms - GTM Comparing performance is not easy, so that will be somewhat subjective. I'll probably compare dyno graphs and boost level. Also, with more boost a pulley change away, I'll work in some value of upgradability into the total cost of ownership over the life of the kit.