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The mkiv Supra Owners Club

Literally just about to buy this


scott87

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TT and NA exhausts both use the same bends for the 2nd cat, and will both suit the NA or TT system. My NA even has twin heat shields for a TT setup.

 

Thing is, most NA systems are 2.5". So if you go TT or Big Single, your limited with that pipe work. 3" min on big single. 2.5" on BPU is fine but anymore your want to be swapping it out. It' like a bottle neck effect, if you dont know what you've got measure it as if you choose to go big single and fork out lots of money the exhaust components may sneak up on you and hold you back.

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TT and NA exhausts both use the same bends for the 2nd cat, and will both suit the NA or TT system. My NA even has twin heat shields for a TT setup.

 

Thing is, most NA systems are 2.5". So if you go TT or Big Single, your limited with that pipe work. 3" min on big single. 2.5" on BPU is fine but anymore your want to be swapping it out. It' like a bottle neck effect, if you dont know what you've got measure it as if you choose to go big single and fork out lots of money the exhaust components may sneak up on you and hold you back.

 

Oooh. Mine's 3.5" anywho! Win!

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