TR7 part number??
its not actually called a tr7 which is why you wont find it if you look at the top of the nitrous page there is a sticky on the spark plug heat ranges and part numbers its a br7-something
Joined: Nov 2001
Posts: 10,023
Likes: 6
From: LT1 land...the "409" of the 90s!
Because the plug will sacrafice it self to save the engine 
the strap and electrode will start to melt and not just blow off like a street plug.
Yes I am Biased. I recently had a set of autolite plugs save my engine I can not tell you how many times I have seen NGK street plugs with blown off strap's
the strap and electrode will start to melt and not just blow off like a street plug.Yes I am Biased. I recently had a set of autolite plugs save my engine
I can not tell you how many times I have seen NGK street plugs with blown off strap's 
