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Enthusiast ![]() ![]() Joined Apr 24, '04 From S. Cali Currently Offline Reputation: 0 (0%) ![]() |
Which is better for a stock 5sfe, 2.25 or 2.5in pipe? I've searched around and its a pretty even split on opinions between them. I've decided on the HKS Carbon TI muffler with the 60mm (just over 2.25 in) inlet, i know its expensive for a stock motor but it looks damn good and sounds sweet, my mind is made up. Carbon fiber is just so sweet!!!!
![]() Now i just gotta decide what size piping, its gonna be catback, and whether or not to go under axle or over. What are the pros and cons of each??? If i go "under axle" will there be any clearance issues since my car is lowered??? i know this question comes up a few times, but im looking for a definative answer...i've searched alot and i still can't come up with a good answer. |
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![]() Enthusiast ![]() ![]() ![]() ![]() ![]() Joined May 22, '03 From NOVA Currently Offline Reputation: 16 (100%) ![]() |
QUOTE(Punisher @ Jan 11, 2007 - 1:02 AM) [snapback]516921[/snapback] ideal would probably be 2" to be honest.. and go over or under the axle you won't notice a difference.. Although.. Our resident Engineer Dan seems to think differently ![]() you won't notice it on an ass dyno no. but there is an actual difference...length wise its shorter, and flow its smoother, why? because less bends = faster and less restricted flow... |
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Enthusiast ![]() ![]() ![]() Joined Jun 19, '06 From Portland, OR Currently Offline Reputation: 1 (100%) ![]() |
QUOTE(playr158 @ Jan 11, 2007 - 9:57 AM) [snapback]517005[/snapback] QUOTE(Punisher @ Jan 11, 2007 - 1:02 AM) [snapback]516921[/snapback] ideal would probably be 2" to be honest.. and go over or under the axle you won't notice a difference.. Although.. Our resident Engineer Dan seems to think differently ![]() you won't notice it on an ass dyno no. but there is an actual difference...length wise its shorter, and flow its smoother, why? because less bends = faster and less restricted flow... Yea.. that 1hp gain on a 5sfe will be really worth the hassle finding a shop to do under-axle exhaust and do it right. -------------------- 87 4runner DLX 22re, 5spd, 4.30gr, 4" lift, 30" tires, HID w/ Projectors, 6spkr + sub, custom exhaust, 94 celica leather seats, SR5 gauge cluster and clinometer. Future engine swap... possibly a 2jzge.
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