performance exhausts for spitfires

[Alan Kee]

Hello triumph fans what are the current favourite performance / sporty exhaust systems available for spitfires? and any to avoid?

[garagewidow]

depending on your wallet any decent 4>2>1 manifold will produce good power(even the standard one on the 1500 is quite good) with other breathing mods and eliminate the troublesome down pipe gasket problem.the twin pipe wheelbarrow handle exhaust is more noisy than a single pipe one on a four cylinder and it's questionable which one produces more power.

Edited by garagewidow on Friday 8th October 22:24

[Spitfire2]

In my experience a single wide bore exhaust gives better performance than a wheelbarrow exhaust.

My current set up is a TSSC/BELL 4-2-1 Stainless Steel Manifold with a 2 inch bore single exhaust (Pheonix) with a large straight through silencer.

Got mine from this chap

http://cgi.ebay.co.uk/SPITFIRE-GT6-PHOENIX-SPORTS-...

Its quieter than the old Bell twin exhaust I had and noticeably quicker.

Noise is wonderful and gets lots of comments. The twin sounded great too but was very loud.

[theoriginaltwig]

Yep, I had the same setup on my Spit, worth every penny due to the lovely noise. I had mine running with a single weber carb and it was very throaty, although it did make the back of the car very sooty!

[davepoth]

Bit of scaff exiting by the rear wheelarch with no silencers should do the job.

[Low Pro]

I did alot of searching for exhausts when i was looking for mine,in the end i has a phenix twin back box with a SS race manifold. The single bore is bigger and the tip is a straight cut piece of tube as apposed to the twin which has the tips rolled inwards, i think it looks bit smarter, as well as begin slightly small diameter than the single, (this only applys to the Phenix systems) i heard a single bore at CLM and couldnt really tell the difference. With the manifolds they all seem to be the same design 4-2-1, which is the best design as the idea is to make all the pipes from each cylinder the same length, so there is a depression in the cylinder thus pulling in the fresh charge of air/fuel quicker and sometimes more when in the power band. You will notice a perfomance increse from the standard system just because it allows the engine to breath better. hope you find this usefull, also check out the moss europe web site search spitfire then performance then exhausts they have pretty much most manufactures for the spit.

[Alan Kee]

thanks for all the comments/links guys .. have been doing plenty of reading-up